 |
Post Aj9Qpjev7WjWLf7akK by [email protected] |
 |
More posts by [email protected] |
|
Post #Aj99BuURjVgF8Ve8Yq by [email protected] |
|
0 likes, 2 repeats |
|
|
|
Why do we call electrons 'negative' and protons 'positive'? I… |
|
|
|
Post #Aj9AAE4Y3VCtFEIGR6 by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez Franklin also totally messed up the QCD colour charges. |
|
|
|
Post #Aj9AdydO1CkM3Gm7kW by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@gregeganSF - but you can't blame him: it was only much later that we reali… |
|
|
|
Post #Aj9Ez9Wh7IhnjMzvpg by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez It could have been worse. Imagine if a Frenchman, say, had been… |
|
|
|
Post #Aj9F0vBvNvS3qo7tjM by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@mansr The ones stubbornly using weird units are the people in the US, not the … |
|
|
|
Post #Aj9F0vHx1WGw9Uwi7k by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@j_bertolotti @mansr - actually if the French had chosen the convention that el… |
|
|
|
Post #Aj9MzavO39ngL2Gl16 by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez The upside is it means atoms consist of one big positive thing … |
|
|
|
Post #Aj9P8gcaRFxKWMwGNU by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez > when electrons flow through wires, the current is defined … |
|
|
|
Post #Aj9P8gic4qmCp3l4ls by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@victor_tokarev - We have to pick a convention. Every convention has its downs… |
|
|
|
Post #Aj9PAvPcPxAqyOwMxk by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez @j_bertolotti Why this animosity towards negative numbers? Are … |
|
|
|
Post #Aj9PAvVI4ri9Fzatns by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@mansr @j_bertolotti - I don't have an animosity to them, just a negative a… |
|
|
|
Post #Aj9QY5YixRk13doCCe by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez I'm honestly shocked by this. So if you put a fork in the t… |
|
|
|
Post #Aj9QY5f6ZiqTNQnI9I by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@kenbot - if you were using direct current, which way the current flows when yo… |
|
|
|
Post #Aj9Qlgu9Q2mCeDJi8e by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@julesh - instead of electrons they should be called criticules: a word that sh… |
|
|
|
Post #Aj9Qpjev7WjWLf7akK by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez Mandatory #xkcd reference: https://xkcd.com/567/ |
|
|
|
Post #Aj9QpjlIjnpyfS6ggy by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@astro_jcm - thanks! I'm going to stick that onto my post. |
|
|
|
Post #Aj9RUEjgzpXiJbfMIa by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@j_bertolotti @mansr @johncarlosbaezThe French also use a crazy system. The bas… |
|
|
|
Post #Aj9RUEpidQMacIUAgy by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@geoffl They also use time units where 1 minutes is 60 seconds instead of a nic… |
|
|
|
Post #Aj9RUEw6FhT2w5TGdc by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@j_bertolotti @geoffl - The French had the right attitude but they couldn't… |
|
|
|
Post #Aj9SNgXVKEaoTOPAcC by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez @astro_jcm Wouldn't positrons also have to become negatrons… |
|
|
|
Post #Aj9SNgdAz986kz3hSK by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@JonnyT @astro_jcm - yes, that's true! |
|
|
|
Post #Aj9XB0cVqzl8l6WShc by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez @j_bertolotti @geoffl subscribe 😋 |
|
|
|
Post #Aj9XLKxv479wkpSavI by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez that Franklin dude had a 50% chance. The world would be differe… |
|
|
|
Post #Aj9XnjXZI1R753fuq0 by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@dale @johncarlosbaez If you look at any electronic circuit (DC) with arrows to… |
|
|
|
Post #Aj9XnjdEwvyPMeKRg8 by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@dale wrote: "{I’m in the UK and I’ve never heard anyone say anything … |
|
|
|
Post #Aj9Y0BytNE0AlMOdbk by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@dale @johncarlosbaez Yeah that's what I thought. I distinctly remember bei… |
|
|
|
Post #Aj9Y0C4v0op343DS08 by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@yonder - unless you grew up someplace where they consider electrons positively… |
|
|
|
Post #Aj9Y9VXE2hJC0vthjM by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@j_bertolotti The americans got that stubbornness from the French.As i heard it… |
|
|
|
Post #Aj9Y9VdFgI84JciW7k by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@androcat @j_bertolotti @mansr @johncarlosbaez That's the foundation for &q… |
|
|
|
Post #Aj9YjHSdqXXSn0oMWO by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez That's the undergraduate bad convention. The postgraduate … |
|
|
|
Post #Aj9YjHYJVS4l4bStMW by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@bks - just live your life backwards, then entropy will be decreasing. |
|
|
|
Post #Aj9Yr5FF9KPDDcGUpk by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@geoffl @j_bertolotti @mansr @johncarlosbaez Wait what? Nobody I know uses deci… |
|
|
|
Post #Aj9Yr5KuoEwVVCv1fs by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@Arcaik @geoffl @j_bertolotti @johncarlosbaez It probably varies between langua… |
|
|
|
Post #Aj9YyWmVATvYeGN4Ay by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez tbf, it makes sense if you consider circuits with positive char… |
|
|
|
Post #Aj9YyWssml20y3MA7c by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@engravecavedave - if we were made of antimatter using wires that carried posit… |
|
|
|
Post #Aj9Z3rUtZdWCLVgBBg by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@RealGene - that's great! |
|
|
|
Post #Aj9bCyvVWNartybSyG by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez @dale Oh yeah I get that. I don't mean that we were taught … |
|
|
|
Post #Aj9bCz1BBI8ABZFzoO by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@yonder - wow, that's EXTREMELY interesting! I wouldn't believe you e… |
|
|
|
Post #Aj9eDA48PE8wJOPqUK by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez @daleIt must have been drummed into us that conventional curren… |
|
|
|
Post #Aj9eDAAA2oxoc5Eesi by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@yonder - Yes, that sounds unusual: general relativity but no grammar! How fa… |
|
|
|
Post #Aj9i5COwEpPN3Ubb3Q by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez I think this way of looking at energy has really messed with th… |
|
|
|
Post #Aj9i5CUxsQEFMBQPRo by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@JoBlakely - I wasn't talking about energy. I was talking about electric c… |
|
|
|
Post #Aj9kq5eBMpxvcuDsGm by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez is the rotational direction of the magnetic field in that diagr… |
|
|
|
Post #Aj9kq5kD0Qmnvb2gfA by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@jes5199 - practically everything in physics involves a sign convention, even e… |
|
|
|
Post #Aj9l6cVQxz0MAb0rRI by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@ants_are_everywhere @johncarlosbaez @j_bertolotti @geoffl The bit about the wi… |
|
|
|
Post #Aj9l6cbSbZpETHpfpg by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@mansr @ants_are_everywhere @j_bertolotti @geoffl - wow!People get really worke… |
|
|
|
Post #Aj9lwUKIcgzNrMXNZo by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez @mansr @j_bertolotti @geoffl let's also remember the brave … |
|
|
|
Post #Aj9uAJTQZMnzt6uUjY by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez @julesh Also known as "anonymous referees." |
|
|
|
Post #Aj9y20eb3asz1FQkro by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez @j_bertolotti @geoffl The French Republican calendar itself was… |
|
|
|
Post #AjAAWuMhgdTdwUYr9k by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@xconde - did you wind up on the streets, taking drugs? |
|
|
|
Post #AjAAffnlCelFNeOdDU by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@apophis - I'm glad to hear that! Other people are finding it upsetting ne… |
|
|
|
Post #AjAAnJA7GAgxTxUfEO by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez @gregeganSF Mauve. They're mauve. Trust me on this one.And … |
|
|
|
Post #AjAAnJGUsRnPnkTlB2 by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@TruthSandwich @gregeganSF - physicists *do* talk about valence quarks versus s… |
|
|
|
Post #AjAAs7RSGNcya1tid6 by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez @j_bertolotti @mansr The obvious solution is to switch from usi… |
|
|
|
Post #AjAAs7XpsejQtosoZk by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@TruthSandwich @j_bertolotti @mansr - maybe in Asimov's future they've … |
|
|
|
Post #AjB9YxNhXR1f50OuNk by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez @j_bertolotti @geoffl I came here to mention gradians.First I h… |
|
|
|
Post #AjB9YxU59i87OnO0KO by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@griibor @j_bertolotti @geoffl - wow, one hundredth of a gradian was called a &… |
|
|
|
Post #AjBgPTasDPQCZneIka by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@johncarlosbaez French surveyor here: we use gradians everyday, but we rather c… |
|
|
|
Post #AjBgPTgtr0F4sUT78y by [email protected] |
|
0 likes, 0 repeats |
|
|
|
@TanguyN - nice! The English Wikipedia lists multiples of the 'gon' i… |
|
|
|
Post #AjCSiE5wrKWJoGBsCO by [email protected] |
|
0 likes, 2 repeats |
|
|
|
@johncarlosbaez @griibor @j_bertolotti @geoffl Many practical applications, mos… |
|
|
|
Post #AjFMovirY5zQba5MXo by [email protected] |
|
0 likes, 1 repeats |
|
|
|
@johncarlosbaez @lisamelton Electrons are negative and protons positive because… |
