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15
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1k views

How could Eratosthenes measure the circumference of the Earth?

Some 2,200 years ago, Eratosthenes calculated the radius of the Earth. A brief recap Plant a stick in the ground vertically, and wait until the sun is directly above the stick, that is until ...
3
votes
2answers
121 views

Newton, Galileo, and Gravity

One of the few things I remember from my high school physics class is my teacher telling me that Newton discovered things like the universal law of gravitation simply because his initial premise was ...
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1answer
128 views

Is Maxwell really owner of Maxwell's Equations?

Maxwell's equations are four equations known to Maxwell; but it seems to me that they are GFAM's (Gauss-Faraday-Ampere-Maxwell's) Equations. Why are they then called only Maxwell's Equations!?
14
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3answers
357 views

How did the “Standard Model” physics theory get that name?

I want to know how the Standard Model theory got such "generic" name. (I've made this question in Physics StackExchange, but it was considered off-topic, and someone suggested to reask it here.)