The Pythagorean theorem states that, for a right triangles with side lengths a,ba, b and hypotenuse cc:

a2+b2=c2.a^2 + b^2 = c^2.

There are many proofs, but my favourite for its geometric simplicity is the following proof by rearrangement.

A proof by rearrangement of the Pythagorean theorem

Depending on where you put four copies of the right triangle in a square with side length a+ba+b, the remainder can either form a square of area c2c^2 or two squares with respective areas a2a^2 and b2b^2.

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The popular image of a tall, narrow iceberg is wrong:

While it’s true that only ~ 10% floats above the surface of the water, the “classic” orientation is unstable and would actually not be found in nature. An elongated iceberg would not float on its head, but instead on its side.

Megan Thompson-Munson

Generally, icebergs will float so their long axis is parallel to the ocean surface. See for yourself with this iceberg flotation simulator!

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The British Foreign Secretary recently announced an agreement that will restore sovereignty over the Chagos Archipelagoto Mauritius. I don’t have enough context to understand what this means to the Chagossians in exile, but I can say this has huge implications for geography trivia — the sun will finally set on the British Empire for the first time in over four centuries!

This news may also have a big impact on the internet. Up until now, the Chagos Islands were part of an entity called the British Indian Ocean Territory, which was assigned the country code IO and the top-level domain .io. Domains ending in .io have become popular in the tech world: high-profile examples include CodePen, Swagger and Jenkins, the official Rust package repository, the Azure Container Registry, and lots of GitHub Pages sites.

When the British Indian Ocean Territory ceases to exist, IANA policy says that all .io domains should also be eventually extinguished, as happened with .yu and .cs. However, the .su top-level domain still exists for the Soviet Union, so it would not be unprecedented for IANA to make an exception and keep .io around.

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Today is National Day for Truth and Reconciliation in Canada. With the day off comes an opportunity (and responsibility) to learn about residential schools, through which the federal government and Canadian churches separated children from their families and subjected them to abuse and neglect in loco parentis.

[R]econciliation, in the context of Indian residential schools, is similar to dealing with a situation of family violence.

Honouring the Truth, Reconciling for the Future
Truth and Reconciliation Commission of Canada

Although the first residential schools were first established pre-Confederation, their story is shockingly and depressingly recent: residential school populations were at their highest from the 1920s to the 1960s, and some continued to operate well into my own childhood.

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The Kama Sutra (कामसूत्र) is an ancient Hindu text about sensory pleasure. Although it’s best known in English for its most risqué chapters, it also contains a list of sixty-four arts whose knowledge makes a person popular and attractive.

1. Singing.
2. Playing on musical instruments.
3. Dancing.

28. A game, which consisted in repeating verses, and as one person finished, another person had to commence at once, repeating another verse, beginning with the same letter with which the last speaker’s verse ended, whoever failed to repeat was considered to have lost

Kama Sutra, Chapter 3

In modern times, the twenty-eighth art is primarily practiced by bored children on road trips and is known by many names like word chain or shiritori. I had no idea it was over 1700 years old!

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The word “distribute” is etymologically the opposite of “tribute”.

early 15c., distributen, “to deal out or apportion, bestow in parts or in due proportion,” from Latin distributus, past participle of distribuere “to divide, deal out in portions,” from dis- “individually” and tribuere “to pay, assign, grant,” also “allot among the tribes or to a tribe,” from tribus (see tribe)

In geography, a tributary is a stream or river that feeds into a larger body of water; for example, the Thompson River (Snek’w7étkwe) is a tributary of the Fraser (Sto:lo). When a river bifurcates into multiple downstream branches, such as the North and South Arms of the Fraser, those branches are called distributaries.

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The orange cat Diggy sits on my shoulders

Diggy, my best furry friend of twelve years, passed away this week. He was full of sass, love, energy, mischief, curiosity, and affection, and will be deeply missed.


Diggy was found as a kitten on the streets of Kamloops in 2012, and Leah and I took him in on November 1. As soon as he was out of the carrier, Diggy was wandering around our apartment like he owned the place. Diggy slept on the bed between the two of us the very first night we had him.

Diggy was a cat full of mischief. Under his watch, no bag would be left unoccupied, no nook would stay unexplored, and no paper would remain unchewed. Diggy zoomed around as a kitten, usually ending with a parkour climb up our bathroom door jamb and once leaving me to shower in the dark after he caught the light switch on the way down. Diggy slowed down later in life but was no less of a brat, climbing on counters, getting water all over his face, and yowling at night to report he had found his favourite toy.

Cats have their people, and I was Diggy’s person. The two of us were inseparable: first thing in the morning and last thing at night Diggy would hop into the bed to snuggle. If I sat down on the couch to read or play video games, he would force himself onto my chest and nuzzle my face. And any time I called his name, he would trot over with a purr that could be heard across the room.

In 2018 we adopted our second cat, and Diggy became a big brother. Although Diggy and Pazzo were never super close, they were true partners in crime. The two frequently played together: grooming, wrestling, racing down the hall, or batting at one another from different heights of furniture. For a while we kept the office door closed to protect its contents from the cats, but despite our best efforts Diggy would break in and Pazzo would follow to make mischief.

Diggy was constantly making us laugh and smile. He was a true master of the “blep” technique as shown in the photos below. And his dedication to “flumping” came with it a complete disregard for gravity; he has been known to do an unintentional barrel roll right off a piece of furniture.

All in all, Diggy was an adorable cat, full of sass, love, energy, mischief, curiosity, and affection. He brought Leah and I together as a family and brightened up our lives and our home. Diggy was the first cat I ever had, and I was incredibly lucky to have had such a special relationship with him.

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Vector art of fire hydrants of various colours

You know what a fire hydrant looks like. You pass by them every day, and they’re all painted to be a highly visible red. Or is it yellow? Wait, maybe they have other colours on them too?


If the subject of fire hydrant colours has ever crossed your mind, you might have assumed (as I did) that they’d be covered somewhere in the Fire Code. In fact, the code is completely silent on hydrant colours, and it’s up to individual municipalities and their fire departments to decide how hydrants should be painted. This leaves a lot of room for variation!

Even setting aside exceptional cases — like downtown Quesnel’s artistic hydrants, or that time an Abbotsford neighbourhood got gold-plated hydrants — there’s a wide variety in the colour schemes used across municipalities in BC.

The non-standard standard

A document called NFPA 291, published by the US-based National Fire Protection Association, is the closest thing there is to a standard fire hydrant colour scheme. It recommends that:

[P]ublic hydrant barrels are to be colored their characteristic chrome yellow. … The tops and nozzle caps are also painted under a capacity-indicating color scheme to provide simplicity and consistency. This scheme consists of Light Blue [for hydrants that can pump 1500 gallons per minute], Green [1000-1499 gpm], Orange [500-999 gpm], and Red [less than 500 gpm].

ANSI, describing NFPA 291

Although many NFPA standards are incorporated into the Canadian Fire Code, the NFPA 291 colour scheme is purely voluntary.

Many municipalities incorporate the recommended flow rate colours into their hydrant designs, but only a few — notably Kelowna, Chilliwack, and Merritt — implement the full standard including the chrome yellow body.

Vancouver

In the city of Vancouver, most fire hydrants are painted entirely red. Each hydrant has a label indicating the flow rate (as per the NFPA 291 colour code) and an alphanumeric identifier that can be looked up on the on the city website to find the make, model, and installation date.

Downtown, you’ll also see fire hydrants of a different colour. These large blue hydrants are part of the Dedicated Fire Protection System, an auxiliary network that can supply enough water pressure to reach the tops of high-rise buildings. The network was built to withstand magnitude 8 earthquakes after the successful use of a similar system in San Francisco.

Fire hydrants on Vancouver’s Dedicated Fire Protection System are blue with white trim.

A large blue fire hydrant with a white top and white caps

Fire hydrants on Vancouver’s Dedicated Fire Protection System are blue with white trim.

Burnaby

A red, white, and green fire hydrant in a bed of flowers in front of a sign reading Burnaby

The city of Burnaby might have a claim to the province’s most distinctive fire hydrants. Their red, white, and green colour scheme isn’t found anywhere else in BC.

The Burnaby tricolour apparently only applies to public hydrants. The shopping centres at Market Crossing, for example, installed boring red fire hydrants on their parking lots.

Kamloops

A yellow fire hydrant at the side of the road. In the distance, a truck approaches.

My hometown of Kamloops paints its hydrants yellow with a white bonnet.

The largest port of a Kamloops hydrant exhibits another colour code that can be found across the province. The main cap can either be yellow or black depending on whether it is threaded or uses a Storz connection.

Hope

Downtown Hope’s red hydrants have little antennae attached to make them more visible, especially in cases of heavy snow.

Across BC

As much as I’d like to travel around the province taking pictures of fire hydrants, this post needs to be published at some point. I therefore took to Google Street View to survey fire hydrants in each of the 75 most populous BC municipalities.

MunicipalityBodyCapBonnet
Abbotsford1 ⚪ White🔵 Blue🔵 Blue
Armstrong🟡 Yellow🟡 Yellow🟡 Yellow
Burnaby⚪ White🔴 Red🟢 Green
Campbell River🟡 Yellow🟡 Yellow🟡 Yellow
Castlegar🔴 Red🔴 Red🔴 Red
Central Sannich⚪ White🔴 Red🔴 Red
Chilliwack🟡 YellowNFPA2 NFPA
Coldstream🟡 Yellow⚫ Black🟡 Yellow
Colwood⚪ White🔴 Red⚪ White
Comox🔴 Red⚪ White⚪ White
Coquitlam🔴 Red🟡 Yellow🟡 Yellow
Courtenay🔴 Red⚪ White⚪ White
Cranbrook🔴 Red🔵 Blue🔵 Blue
Creston🔴 Red🔴 Red🔴 Red
Dawson Creek🔴 Red⚪ White⚪ White
Delta⚪ White⚪ WhiteNFPA
Esquimalt🔴 Red🔴 Red🔵 Blue
Fernie🔴 RedSilverSilver
Fort St John🟡 Yellow🟡 Yellow🟡 Yellow
Hope🔴 Red🔴 Red🔴 Red
Kamloops3 🟡 Yellow🟡 Yellow⚪ White
Kelowna🟡 YellowNFPANFPA
Kent🔴 Red⚪ White⚪ White
Kimberley🔴 Red🔴 Red🔴 Red
Kitimat🟡 YellowNFPANFPA
Ladysmith🔴 Red🟡 Yellow🟡 Yellow
Lake Country🟡 YellowNFPANFPA
Langford🔴 Red🔴 Red🔴 Red
Langley🔴 Red⚪ White⚪ White
Maple Ridge🔴 Red⚪ White⚪ White
Merritt🟡 YellowNFPANFPA
Mission🟡 Yellow🔵 Blue🔵 Blue
Nanaimo🔴 Red🟡 Yellow🟡 Yellow
Nelson🔴 Red🔴 Red🔴 Red
New Westminister🔴 Red⚪ White⚪ White
North Cowichan🟡 Yellow🟡 Yellow🟡 Yellow
North Sannich🔴 Red⚪ White⚪ White
North Vancouver🔴 Red⚪ White⚪ White
Oak Bay🔴 Red⚪ White🔴 Red
Osoyoos🟡 Yellow🟡 Yellow🟡 Yellow
Parksville🔴 Red⚪ White🔴 Red
Peachland🔴 RedNFPANFPA
Penticton🟡 YellowNFPANFPA
Pitt Meadows⚪ White🔴 Red🔴 Red
Port Alberni🔴 Red🔴 Red⚪ White
Port Coquitlam🔴 Red🔴 Red🔴 Red
Port Moody🔴 Red🔴 Red🔴 Red
Powell River🟡 YellowNFPANFPA
Prince George🟡 Yellow🔴 Red🔴 Red
Prince Rupert🔴 Red⚪ White⚪ White
Qualicum Beach🔴 Red🔴 Red🔴 Red
QuesnelDecoratedDecoratedDecorated
Revelstoke🟡 Yellow🟢 Green🟢 Green
Richmond🔴 Red⚪ White⚪ White
Saanich🔴 Red⚪ White🔴 Red
Salmon Arm🟡 Yellow🟡 Yellow🟢 Green
Sechelt🔴 Red⚪ White🟢 Green
Sidney🔴 Red⚪ White⚪ White
Smithers🟡 Yellow🟡 Yellow🟡 Yellow
Sooke🔴 Red🔴 Red🔴 Red
Squamish🔴 Red⚫ Black🔵 Blue
Summerland🔴 Red🔴 Red⚪ White
Surrey4 🔴 Red⚪ White🔴 Red
Terrace🟡 Yellow🟡 Yellow🟡 Yellow
Trail🔴 Red🔴 Red🔴 Red
Vancouver🔴 Red🔴 Red🔴 Red
Vernon🟡 YellowNFPA⚪ White
Victoria🔴 Red🔴 Red🔴 Red
View Royal🔴 Red🟡 Yellow🔴 Red
West Kelowna🔴 Red🔵 Blue🔵 Blue
West Vancouver🔴 Red🔴 Red🔴 Red
Whistler🔴 Red🔴 Red🔴 Red
White Rock🔴 Red🔴 Red⚪ White
Williams Lake🟡 Yellow🟢 Green🟢 Green

The above table is not foolproof. It is hard to tell, for example, whether Williams Lake has adopted a uniform yellow-and-green colour scheme for aesthetic reasons or it just happens to have a lot of 1000 gpm hydrants painted according to NFPA 291.

I also saw one instance of a hydrant in Comox that appears either yellow or red in Street View depending on the angle; one image was taken in 2012 and the other in 2022, and the hydrant had apparently been repainted in the interim.

Conclusion

Fire hydrant colours are left to each municipality, and frequently lack public documentation. I’ve done a quick survey of what’s out there, but I’ve surely missed many exceptions, oddities, and quirks in each municipality. Pay attention to the hydrants in your neighbourhood and you’ll surely notice something interesting!

Footnotes

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Most ice cream trucks in Canada and the United States use music boxes made by a single mom-and-pop company in Minneapolis. If there’s a particular ice cream truck song that annoys you all summer, you have the Nichols Electronics Company to blame.

(You could always ask the your local driver if they’re able to switch it up — if they have one of the Omni models, they could change it to one of thirty-one other songs.)

Historically, ice cream truck music boxes were a sonic callback to late 19th-century ice cream parlors and soda fountains, which had coin-operated music boxes before phonographs were invented and jukeboxes could become a thing.

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Highway exits in Canada are generally numbered based on the distance (in km) from the beginning of the highway. But what about before Canada went metric? Did all the exits have to be renumbered?

As it turns out, my assumption that distance-based exit numbering is not as widespread or as recent as I thought.

  • Ontario and Québec have exit numbering systems that predate metrication, but only barely, so the switch wasn’t too hard.
  • Newfoundland and Nova Scotia have sequential exit numbers, not distance-based ones.
  • Alberta didn’t post exit numbers at all until 2004!
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A mock NYT Connections puzzle solution whose answers are related to crosswords or puzzles in some way

My daily routine nowadays includes two word puzzles: the Puzzmo/AVCX crossword and the The New York Times’ new game Connections. That’s inspired me to see if I could create a hybrid of the two.


Here’s what I came up with. The following is a normal American-style crossword puzzle — no cryptic clues this time — with 24 seven-letter answers. Once you’re done solving the crossword, write down the seven-letter entries and see if you can group them into six categories of four words each, like a jumbo-sized version of Connections. Good luck!

Answers (and a bit of trivia) can be found below the puzzle behind spoiler tags.

ACROSS

DOWN

Answers

Connections answer

The Connections categories of the seven-level words are as follows, in increasing order of difficulty:

Countries
Armenia, Denmark, Ecuador, Vietnam.

Chemical elements
arsenic, calcium, krypton, mercury.

Technically fruit
apricot, avocado, coconut, pumpkin.

Anagrams
camelid, claimed, decimal, medical.

Plausible cryptic crossword anagram indicators
diced up, ordered, sketchy, various.

Objects counted with -枚 in Japanese
acrylic, judo mat, seaweed, SIM card

It was quite the challenge to come up with four-word categories given the constraints of the crossword, and it was impossible to include any cross-category red herrings. But I’m quite satisfied that I was able to fit all 24 seven-letter entries into the Connections sub-puzzle; I originally thought I’d only be able to get four categories of four with the other eight being “miscellaneous”.

The last two categories are certainly harder to get than you’d normally see in the NYT puzzle, but I think they mostly hold up.

Crossword Trivia

To me, compiling a crossword is a great excuse to break out trivia I had filed away and to learn new things about the random topics that happen to fit in the grid. Here are some mildly interesting facts about this puzzle’s clues!

Trivia based on the crossword answers

1 across: Arsenic might be an essential trace nutrient

Arsenic is famously toxic, and was historically favoured as an assassination tool since it was hard to detect and mimicked the symptoms of cholera. But studies in rats, goats, and birds have demonstrated arsenic deficiency is possible when fed unnaturally low levels of the element. (Arsenic naturally occurs in groundwater at levels of a few parts per billion.)

17 across: Microsoft slang references an email system from the late 80s

Microsoft employees use “OOF” as shorthand for “out of office”, even though it doesn’t make sense as an acronym. Reportedly, it comes from the name of the auto-reply feature in a Xenix email system Microsoft hasn’t used since 1993.

25 across: Yuri Oganesson

Yuri Oganessian is a physicist whose discoveries were essential to the discovery of elements 106 to 118, and who led the international team in Dubna, Russia who first synthesized many of them.

The race for the periodic table is a fascinating story in its own right; the team at Lawrence Berkeley National Laboratory claimed to have first produced elements 116 and 118 in 1999, but the discovery was later exposed to have been based on data fabricated by Victor Ninov. Both elements were later synthesized for real in a collaboration between the Lawrence Livermore National Laboratory in the US and Oganessian’s Joint Institute for Nuclear Research in Russia.

Oganesson is the heaviest element synthesized to this date; only a handful of atoms have ever been produced. It sits at the bottom of the noble gases column on the periodic table, but it is theorized that it would actually be a reactive solid if it existed long enough for those to be meaningful descriptions.

39 across: Oxygen is sour stuff

The word “oxygen” is named by Antoine Lavoisier after the Greek word ὀξύς describing sharp or harsh tastes, since he believed (incorrectly) that it was a component of all acids. In German, the element is called Sauerstoff.

49 across: Ada Lovelace was Lord Byron’s daughter

Ada Lovelace is famous in computer science as the author of the first published computer algorithm (for Charles Babbage’s Analytical Engine) and the first person to recognize that the machine could have applications beyond calculation:

Again, it might act upon other things besides number, were objects found whose mutual fundamental relations could be expressed by those of the abstract science of operations, and which should be also susceptible of adaptations to the action of the operating notation and mechanism of the engine. Supposing, for instance, that the fundamental relations of pitched sounds in the science of harmony and of musical composition were susceptible of such expression and adaptations, the engine might compose elaborate and scientific pieces of music of any degree of complexity or extent.

Ada Augusta, Countess of Lovelace

Less well known is Ada’s relationship to Lord Byron, the eccentric poet and famous philanderer. Lady Byron believed her husband to be insane and left Lord Byron shortly after giving birth to Ada (the marriage lasted one year). She strongly encouraged Ada’s scientific and mathematical studies in the hopes that she wouldn’t take after her father.

52 across: Osu!!

Osu (押忍) is an informal acknowledgement mainly used by people involved in martial arts. It’s also associated with cheer squads, and is referenced in the Japanese title of the Nintendo DS rhythm game series known in the west as Elite Beat Agents. It’s believed to be an extreme contraction of oyahō gozaimasu (おはようございます), or “good morning”, with the kanji 押 (“push”) and 忍 (“endure”) having been assigned after-the-fact.

54 across: Falling coconuts don’t kill that many people

There is an urban legend that hundreds of people are killed by falling coconuts each year. That statistic is completely unsubstantiated, but there is a seed of truth to it: a 1984 paper by Dr Peter Barss reported nine cases of serious head injuries caused by falling coconuts in Papua New Guinea.

68 across: Europe’s spaceport is in South America

Here’s a great trivia question: with what country does France have the longest border with? Is it Spain? Germany? No — it’s Brazil. That’s because of French Guiana, an overseas department of France between Brazil and Suriname on the north coast of South America. It’s part of the EU and Eurozone but not the Schengen Area.

French Guiana’s location right next to the equator made it the perfect site for the Guiana Space Center, built in 1968 after Algeria won its independence from France. The spaceport is operated by the European Space Agency (ESA) and the French and EU space agencies. The space sector is a significant fraction of the Guianese economy.

69 across: The giant stones of Yap

Yap is an island in Micronesia famous for its inhabitants’ use of large stone disks as a medium of exchange for ceremonial gifts. Rai, as the stones are known to the northern Yapese, have their owners recorded in oral histories as they are impractical to physically transfer.

They are valuable in part because there’s no limestone on Yap; the stones were quarried on Palau and transported 400km by boat. Supply of rai greatly increased after European contact, as did the disks’ individual sizes, but production stopped with the arrival of the Japanese in 1914 and many were lost to typhoon and World War II.

1 down: Avocados probably did not coevolve with giant ground sloths

A paper from the 1980s suggested that avocados might have co-evolved with giant ground sloths, who were large enough to eat and scatter the large seeds. But more recent research has that’s probably not true: avocados were smaller before human cultivation, and giant ground sloths didn’t live anywhere near there anyways.

5 down: Ice is technically a mineral

A mineral is a substance that is

  • naturally occuring
  • inorganic
  • homogenous
  • solid
  • has a definite chemical composition, and
  • has a crystalline structure.

Glacier ice checks all those boxes.

In response, Hank Green hyperbolically exclaimed on TikTok: “Ice is a rock, water is lava, and you are a lava monster. I guess??“

24 down: Tatami mats are interesting mathematically

Ten years ago I wrote a post summarizing some of the math behind traditional tatami patterns, so go check that out.

47 down: The United States has a lot of biomes

Back in high school, I participated in the Great Canadian Geography Challenge, and this crossword clue is my favourite question from provincials that I still remember two decades later.

You can find a lot of different biomes in the United States: tundra and taiga in Alaska; tropical rainforests in Hawaii; and coniferous forests, broadleaf forests, desert, prairies, flooded grasslands, mangroves, subtropical grasslands, and shrublands in the contiguous states.

48 down: The Three Sisters

Corn, beans, and squash (including pumpkins) are the three sisters of North America. This nutritionally-complete combination of crops is key to the cuisine of indigenous peoples across the continent. They featured prominently in the myths and diet of the nations of the Haudenosaunee Confederacy, for example.

59 down: Legendre’s constant

In 1808 Adrien-Marie Legendre conjectured that the prime-counting function π(x) asymptotically behaves like

π(x)xln(x)B\pi(x) \approx \frac{x}{\ln(x) - B}

for some constant B1.08366B \approx 1.08366. Decades later, it was proved that the conjecture was right but the constant was wrong — in fact, B is equal to exactly one.

Hilariously, the only known contemporaneous image of Legendre is a random watercolour caricature by Julien-Léopold Boilly.

Watercolour caricatures of the French mathematicians Legendre and Fourier

Legendre’s only known portrait (left) looks like a grumpy Super Saiyan Beethoven. It was sketched on the same page as an equally funny image of Joseph Fourier.

61 down: The seconds pendulum was almost the definition of a meter

The meter was originally defined as one ten-millionth of distance from the North Pole to the Equator through Paris. The main competing proposal was to use the length of a pendulum with a period of two seconds.

By sheer coincidence, the two numbers are almost exactly the same — the seconds pendulum has a length of about 0.993 meters (plus or minus less than a centimeter, depending on where you are on the Earth).

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“Hydrogen” in German is Wasserstoff, which sounds hilarious except it’s just a literal translation of the Greek hydro-gen!

Most chemical elements are more or less the same in German and English. The fun exceptions are:

  • Wasserstoff (Hydrogen); “water stuff” is a literal translation from Greek.
  • Kohlenstoff (Carbon); “coal stuff” is a literal translation from Latin.
  • Stickstoff (Nitrogen); “suffocation stuff”, apparently because it’s the non-oxygen part of air, is a German original.
  • Sauerstoff (Oxygen); “sour stuff” is a literal translation from Greek.

German also has Natrium (Sodium), Kalium (Potassium), Wofram (Tungsten), Quecksilber (Mercury), and Blei (Lead).

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A batter strikes at the ball as the wicketkeeper, fielder, non-striker, and bowler react. (Bahnfrend / Creative Commons BY-SA)

Cricket has a bit of a reputation for being hard to understand, but it’s actually a simpler game than the most popular North American sports.

Here’s everything you need to know to enjoy a cricket match in 600 words or less.


Cricket is played on an oval field with a rectangular pitch in the middle. Two players on the batting team stand on either side of the pitch; the eleven players on the fielding team take up positions around the field.

A wide angle of a cricket match in progress (English Cricket Board)

This wide angle shows nine of the England fielders in red (two are out of frame to the right), two New Zealand batters in black, and two umpires.

Runs

The cricket ball is bowled overarm by a player on the fielding team and can bounce once. The batter hits the ball and switches ends with the other batter, scoring one run each time this happens.

A typical delivery is bowled and hit for a single run. The batter can choose not to run if they don’t think they’ll make it in time.

If the batter hits the ball all the way to the boundary of the field, they score four runs automatically.

If they hit the ball really hard over the boundary, they score six runs.

A ball hit into the stands is worth six runs — but the crowd has to give it back so the same ball can be used for the whole innings.

Wickets

The goal of the fielding team is to get the batters out (“take their wickets”) before they score lots of runs.

The batter is out caught if they hit the ball and a fielder catches it before it hits the ground.

Out caught is the most common form of dismissal in cricket.

The batter is out bowled if they miss and the ball hits the wicket behind them.

Some games have fancy stumps and bails that light up when the wicket is broken.

The batter is out leg before wicket if they use their body to block the ball from hitting the wicket.

A batter is out LBW if the ball would have gone on to hit the wicket after hitting their body. Ball-tracking technology is used to judge LBW appeals that are sent to the third umpire.

The batter is run out if they run and the fielding side breaks the wicket before they’re safe.

To be safe, the batter’s bat or body must be touching the ground behind the white line. In this case, the batter is out because she didn’t quite get her bat grounded in time.

The batter is out stumped if they come too far out, miss the ball, and get run out by the wicketkeeper.

The wicketkeeper may stand close to the wicket for slower balls to make it easier to effect a stumping.

Overs

Every six balls, the fielders switch ends and a different player from the fielding team comes on to bowl. Six balls is also called an over.1

Each team gets to bat for 20 overs2 or until they have lost ten wickets. Whichever team has the most runs after both sides bat wins.

Extras

There are a bunch of rules that govern how the ball should be bowled. A violation results in a do-over, except the batting team is awarded an extra run and gets to keep any runs they scored off the illegal delivery.

A wide is signalled if the umpire judges that the ball was bowled too wide or too high for it to be reasonably hit.

The umpire signals a wide by stretching their arms out.

A no ball is signalled if the delivery is illegal for another reason, usually because the bowler stepped too far over the white line.

If the bowler’s front foot lands entirely on or over the white line, the delivery is a no ball.

A batter cannot be dismissed for being caught, bowled, stumped, or LBW off a no-ball. Depending on the competition, the batter may be awarded the same immunities for the next ball as well — this is called a “free hit”.

Positions

A typical team roster has some specialist batters who usually don’t bowl, some specialist bowlers who aren’t expected to get lots of runs, and some all-rounders who are good at both batting and bowling.

There are two main bowling styles: fast bowlers rely on the speed of their deliveries while spin bowlers deliver slow but tricky balls.

Each team has a wicketkeeper who stops the balls that get past the batter. You can recognize the wicketkeeper as the only fielder who wears gloves.

Fielders can be deployed anywhere, subject to a few restrictions.3 . Commentators describe fielding positions using funny names like slip, gully, mid-off, square leg, and third man.

Scoreboard

A typical TV broadcast overlay displays the following information:

  • The batting team’s current run total and wickets lost.4
  • The number of overs completed or the number of balls remaining.
  • The current batters’ names, runs scored, and balls faced, with some indication of which batter is facing the next ball.
  • The current bowler.
A cricket TV broadcast. The overlay reads as follows: ENG 101-2. 12/20. Run Rate 8.42. Beaumont 47* (39), Jones 23 (10). NZ Kasperek 1-24 (2).

This overlay indicates that England are batting and have scored 101 runs for the loss of 2 wickets. It is the 12th over in a 20-over match. Beaumont has scored 47 runs off 39 balls and is facing the current ball. Jones has scored 23 runs off 10 balls. The current bowler is New Zealand’s Kasperek, who has taken 1 wicket and given up 24 runs in 2 overs this match.

The overlay often shows other relevant information, which may include the current run rate (average runs per over), the target score needed for the team batting second to win, and/or an indication of any special fielding restrictions.

Conclusion

That’s all you need to follow and enjoy a cricket match! All that’s left to learn is some jargon, the names of the players, and the details of whatever tournament or competition you want to follow. You’ll pick up all of those as you go.

Some tournaments worth following are:

National sides often play series against each other as well.

If you want to watch cricket, most series are carried in Canada by subscription streaming service Willow TV. You can also follow live text summaries and scorecards on sites like ESPN Cricinfo.

Footnotes

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A wide-angle view of T-Mobile Stadium's baseball diamond, taken from the stands behind first base

I recently attended a Seattle Mariners game as part of a Microsoft event. It was my first time at a baseball game, so I recorded a bunch of observations about the experience.


The stadium experience

This was my first time attending any professional sport in person, so I didn’t have any idea what to expect. I checked the stadium rules in advance and found I could bring my camera, but not my camera bag or any of my larger lenses. Fortunately, my wide-angle lens and 20–55mm kit lens — both barely within the regulations — were enough to get some interesting photos.

A big part of the ballpark experience is being able to wander around the stadium; I spent at least half the game exploring rather than sitting in my assigned seat. There’s a lot to look at and do in the stadium, and as long as you’re not blocking anyone’s view during an at-bat, there’s remarkable freedom to walk around the aisles and see the field from different angles.

Baseball is complicated

Many of the Microsoft employees at the game — including myself — are more familiar with cricket than with baseball. Cricket has a reputation in North America for being hard to understand, but when I compare my beginner’s guide to cricket with our deliberations our section had to understand what was going on, I realized that baseball is much more complicated.

Can you decipher these scoreboards?

Answer key (bottom section)

Balls, strikes, and outs are fundamental to the game, relatively easy to explain to a newcomer, and mercifully unabbreviated on the bottom right of the scoreboard.

Each team’s current score is the total number of runs under the “R” column; columns 1–9 show how many runs were scored in each inning. The “H” column counts the number of hits resulting on a runner on base due to the batting team’s efforts; the “E” column counts the number of errors by the fielding team that allowed their opponent to get a runner on base.

I had no idea what the acronym “MVR” stood for until a colleague expanded it to “mound visits remaining”; this refers to a kind of time out the fielding team can take to discuss strategy or switch pitchers.

Answer key (side sections)

The sides of the scoreboard display the current lineup of each team with jersey numbers and positions; the highlighted name tells you whose turn it is to bat. The batting lineup shows one other piece of information for each player:

  • For players that have not yet batted in the inning, it shows the batting average.
  • For players that have batted already in the inning, it shows a cryptic acronym that tells you the result of their at-bat.
  • For pitchers (who do not bat), I think it shows the pitcher’s earned runs average (ERA) which is its own whole thing.

On the right-hand side of the first scoreboard, we see that the name highlighted in yellow is the current batter, Seattle’s Dominic Canzone, who wears number 8 on his jersey, plays left field, and has a batting average of .219.

The three Seattle players above Canzone have already batted this inning. Center fielder Raleigh had a single (recorded as “1B”), as did right fielder Raley. First baseman France is listed as having a “P3” which is apparently the acronym for “out after hitting a pop fly which was caught by the first baseman.”

Answer key (middle section, first scoreboard)

The middle of the first scoreboard shows the statistics of the current batter. I had to look up most of the stats on Wikipedia:

AbbrValueStatMeaning
G15GamesNumber of games the batter has played in this year.
AB32At-batsNumber of opportunities the batter had to bat, more or less, except that walks and some other outcomes don’t count towards this statistic.
2B1DoublesNumber of hits on which the batter was able to safely reach second base.
3B0TriplesNumber of hits on which the batter was able to safely reach third base.
BB3Bases on ballsNumber of times the batter was awarded first base after four called balls. (Better known as “walks”.)
SO11StrikeoutsNumber of times the batter was called out after three strikes.
SB0Stolen basesNumber of times the player was able to steal a base. There are a bunch of rules about when a runner can steal a base and when something is scored under this statistic.
CS0Caught stealingNumber of times the player was tagged out while attempting to steal a base.
AVG.219Batting averagePercentage of at-bats where the batter hit the ball and safely reached a base.
R4RunsNumber of times the batter scored a run by crossing home plate.
H7HitsNumber of times the batter hit the ball and safely reached a base.
HR3Home runsNumber of hits on which the batter was able to safely touch all three bases and cross home plate. (Usually by hitting the ball into the crowd.)
RBI6Runs batted inNumber of times the batter’s action allowed another player to score a run.
OBP.286On-base percentagePercentage of the time the batter gets on base, including being awarded first base for a walk or being hit by a pitch.
SLG.531Slugging percentageAverage number of bases achieved per at-bat.
OPS.817On-base plus sluggingOBP plus SLG, for some reason.
Answer key (scoring decision, second scoreboard)

Now we just need to figure out what “FC, E5, No RBI” is supposed to mean. This was displayed on the jumbotron after the following play:

“FC” stands for “fielder’s choice”, meaning that the third baseman chose to try to get the out at third instead of throwing it to first. This means the hit doesn’t count towards the batter’s statistics. The “E5” means the scorer decided that the Seattle players were safe because of the third baseman’s error.

Finally, the run that scored during the play does not count as an RBI for the batter because if it weren’t for the error, there would have been three outs and the runner wouldn’t have scored.

Seriously, baseball is complicated.1

Spot the camera

Before I came to the game I watched a video about camera assignments at professional baseball games and I had fun finding the camera operators at high first, low first, and center field.

Two camera operators stand on a fenced-in platform above the center-field wall and point their cameras at the pitcher and batter

The camera operators at center field are responsible for filming each pitch.

I was walking around the concourse when the Mariners’ Ty France hit a home run. While the crowed erupted in cheers, I was excited for a different reason — I was in the perfect position to watch the cable-suspended camera move into position behind third base and film the runner crossing home plate!

A mobile camera hanging from a pair of cables follows a Seattle Mariners baseball player jogging towards third base

The cable operated camera follows the batter along the third base line after a home run.

Random people keep the ball rolling

To me, no sport is as compelling as all the logistics and anonymous work that goes on behind the scenes. For example, T-Mobile Park still has an analog scoreboard in addition to all the digital ones, which means someone has to be in charge of updating it.

A young, bored-looking person sits on a chair and rests their arms on the stadium scoreboard

Every time a player gets on base, their team’s batboy runs out to pick up their discarded bat and help switch their gloves. The home team’s batboy is also responsible for refilling the umpire’s stock of extra balls, which happens a lot — MLB teams go through about a hundred balls in a game!

The most exciting piece of logistics came between innings, when an army of men with rakes came out to smooth the base paths.

People with large rakes smooth out the dirt between first and second base

Take me out to the ball game?

I’m never going to be a person who regularly attends live sports: it’s too crowded, too noisy, and I don’t care enough about the action happening on the field. But I’m really glad to have gone once. It was a lot of fun to explore the stadium and see a few glimpses of what goes in to putting on a baseball game. Thanks Microsoft for bringing me to a fun event!

Three Kansas City baseball players sit down in center field

Footnotes

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A large rectangular concrete building sits on the water at the base of a forested mountain

I recently went for a walk in təmtəmíxʷtən (Belcarra), and when I got to… wait, what’s that weird derelict building in the distance?


Is it an abandoned hotel? No, there’s no way to get there by land. An old naval fortress? No, the location doesn’t make any strategic sense. A hydroelectric dam? Where’s the water behind it?

As it turns out, it is a power plant! Buntzen generating station #2, completed in 1914, was built to supplement the output of BC’s first-ever hydroelectric plant up-inlet. Both stations were powered by water delivered by penstocks from Buntzen Lake, which in turn was supplied with water from Coquitlam Lake via a 4km-long tunnel.

Buntzen station #1 is still functional and supplies 60 megawatts of power to the Metro Vancouver area. Buntzen #2 was shut down at the turn of the millennium and serves as a historic curiosity for kayakers in səl̓ilw̓ət (Indian Arm).

A black-and-white photo of a large but narrow concrete building at the bottom of a steep hill on the water

Buntzen station #2 under construction in 1913. (James Matthews/Vancouver Archives)

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An exploded-view diagram of a cube broken into interior, faces, edges, and corners

A while ago I arbitrarily decided that I needed a favourite three-digit number (don’t ask) and ended up choosing 216. It’s a nice cube number — 6×6×6 — and can also be expressed as a sum of three smaller cubes:

63=53+43+336^3 = 5^3 + 4^3 + 3^3

The Wikipedia article for the number has a diagram showing one way to reassemble a 6×6×6 cube into three smaller cubes, but I’ve been playing around looking for other, more aesthetically pleasing methods. Here’s one I found.


First, we break the 6×6×6 cube into its 4×4×4 interior, six 4×4×1 faces, twelve 4×1×1 edges, and eight 1×1×1 corners:1 i.e.,

63=43+642+1241+8406^3 = 4^3 + 6\cdot 4^2 + 12\cdot 4^1 + 8 \cdot 4^0
An exploded-view diagram of a cube separated into an interior, faces, edges, and corners

Decomposing the cube according to its polytope boundaries.

The 4×4×1 faces can be combined with seven of the edges and one of the corners to build a 5×5×5 cube. The remaining five edges can be split into ten 2×1×1 chunks and arranged with the remaining seven corners to form a 3×3×3 cube.

An exploded-view diagram of a 3×3×3 cube and a 5×5×5 cube using the pieces of the 6×6×6 cube from before

Rearranging the pieces into smaller cubes.

The unexploded view of the 3×3×3, 4×4×4, and 5×5×5 cubes made from the pieces of the 6×6×6 cube

The final three cubes.

There are many more ways to construct three cubes from the pieces of a 6×6×6 cube. What’s your favourite?

Footnotes

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Baskin-Robbins famously sells 31 flavours of ice cream at a time. But because a standard freezer holds an even number of buckets, they actually display 32 slots and have one flavour appear twice.

(They might also use it for a vegan version of a flavour, which isn’t an exact duplicate but isn’t counted as a distinct flavour either.)

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