David Elm

Member for 7 years, 1 month
Last seen more than a week ago

California, United States

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newtonian-mechanics

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14

Can Newton's laws of motion be proved (mathematically or analytically) or are they just axioms?

Nov 12, 2016

8

Why can electric cars recoup energy from braking, but a spaceship cannot?

Mar 8, 2017

8

Where does the electron come from when a free neutron transforms?

Mar 18, 2020

6

If a planet's core is heated by its gravitational pressure, where does that energy come from?

Nov 30, 2016

6

What is a phonon?

Nov 20, 2016

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Water and Ice with a Barrier

Nov 30, 2016

5

Uses of the Angular Momentum 4-Tensor

Dec 7, 2016

5

Neutrino oscillations in their rest frame

Nov 20, 2017

3

How similar are the spin states and the matter/antimatter states?

Nov 26, 2016

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Can I get any leads on a development of an octonion generalization of the usual angular momentum operators?

Dec 28, 2019

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newtonian-mechanics

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quantum-mechanics

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electromagnetism

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+10

Reason why only massless particles can travel at speed of light?

+10

How is the Schrödinger equation solved for time varying curved potential barriers?

+10

Can Newton's laws of motion be proved (mathematically or analytically) or are they just axioms?

+10

How can energy be discrete when momentum and position are not?

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