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Advice for the entire forum
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Advice for the entire forum
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PmbPhy
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Advice for the entire forum
«
on:
19/03/2018 19:49:08 »
Actually I'm just passing on the advice that I was given by my advisor/mentor in college.
Before you choose to debate the meaning of a term I highly recommend a few things:
1) First consider the level of conversation or the topic and the actual context its used in
2) Before making an assertion on a historical fact make sure you look up the fact and verify it, regardless of how well you know it
3) Make sure you not only know
what
someone says or asked make certain that you know what they are actually seeking to convey.
5) Don't insult people
When I reach perfection I'll satisfy #5 perfectly.
Example of #1) The term "mass" is defined in some high school texts and college chemistry texts as 'quantity of matter'. In special relativity its defined such that m
v
= "mass" x 3-velocity is a conserved quantity. In this context its referred to also as inertial mass aka relativistic mass. If its expressed as m
U
= "mass" x 4-velocitu then "mass" is proper mass aka rest mass. In GR and Newtonian gravity its broken into three categories
1) Inertial mass
2) Active gravitational mass
3) Passive gravitational mass
They can be set equal in many cases but not when it comes to mass density
Example of #2) People, like Stephen Hawking, claim that Einstein showed that gravity is a curvature in spacetime or that he geometrized the gravitational field. That's false. IT never happened.
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Last Edit: 19/03/2018 20:05:54 by
PmbPhy
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The Naked Scientist
Re: Advice for the entire forum
«
Reply #1 on:
19/03/2018 23:45:43 »
Good advice!
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I never forget a face, but in your case I'll make an exception - Groucho Marx -
https://www.thenakedscientists.com/
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