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Imperial vs Metric System

· Web · 30 · 34

@obfuscatedgeek How old is this? The sentence about hydrogen isn't true anymore.

@obfuscatedgeek Well, it's "kind of" true: 1g of hydrogen has ~1.008 moles of atoms

@val @obfuscatedgeek yeah I'd like to know the source to give proper credit, I'll try reverse image search

@melunaka @val – It's from the book Wild Thing by Josh Bazell

@obfuscatedgeek

measuring this via Imperial measurements, I can confirm this is correct

the only certain thing about Imperial measurements is that they are uncertain

@obfuscatedgeek “In metric, one milliliter of water occupies one cubic centimeter, weighs one gram, and requires one calorie of energy to heat up by one degree centigrade—which is 1 percent of the difference between its freezing point and its boiling point. An amount of hydrogen weighing the same amount has exactly one mole of atoms in it. …

@obfuscatedgeek …Whereas in the American system, the answer to ‘How much energy does it take to boil a room-temperature gallon of water?’ is ‘Go fuck yourself,’ because you can’t directly relate any of those quantities.” Josh Bazell, Wild Thing (goodreads.com/quotes/8417995-i)

@obfuscatedgeek
The American system is usually 'Go fuck yourself', whether measuring anything or otherwise.

Especially here in the Boston area.

@obfuscatedgeek To be fair, if the question isn't about water, the answer is the same in both systems^^

«En mètres, un millimètre d’eau occupe un centimètre cube, pèse un gramme, et nécessite une calorie pour le réchauffer d’un degré centigrade [NdlT: quasi pareil qu’un degré Celsius] — qui est 1 pourcent de la différence entre sa température de congélation et sa température d’ébullition. Une quantité d’hydrogène pesant le même poids contient exactement une mole d’atome.

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Tandis que dans le système américain, la réponse à la question «Quelle quantité d’énergie faut-il pour mettre en ébullition un gallon d’eau à température ambiante?» est «Va te faire foutre», car tu ne peux pas relier directement ces quantités.»

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