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25 votes
3 answers
37k views

Why is kg the standard unit for mass and not g in SI?

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0 answers
31 views

non-integer candela measurements and candela manipulation

6 votes
2 answers
5k views

What are the major flaws of the “caloric” theory of heat?

3 votes
0 answers
65 views

What is the oldest way to measure the voltage?

4 votes
1 answer
217 views

Is there a source for a footnote in *A Canticle for Leibowitz* about the definition of the electron, "Negative Twist of Nothingness"

4 votes
2 answers
1k views

Why is electric potential denoted by $\phi$?

0 votes
1 answer
698 views

Famous gypsy/romani physicists?

2 votes
1 answer
105 views

I'm searching for the original paper from 1924 where Max Born first proposed the term "quantum mechanics."

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When were the notions of "matter" (as opposed to mass) and its conservation introduced?

9 votes
3 answers
2k views

How did Henry Cavendish deduce the inverse square law in electrostatics from his experiment in 1772?

7 votes
5 answers
377 views

Math concepts introduced by physicists and made rigorous later

6 votes
2 answers
6k views

An English copy of One Hundred Authors Against Einstein?

1 vote
1 answer
221 views

Interviews / Conversations with Einstein

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43 views

How did "Gauss's law" get its name?

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