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Paul Young
  • Member for 3 years, 6 months
  • Last seen this week
  • USA
48 votes

Can a wire having a $610$-$670$ THz (frequency of blue light) AC frequency supply, generate blue light?

42 votes

Why does shooting a handgun accelerate a bullet to deadly speed without injuring the gun user's hand?

11 votes
Accepted

Kepler's third law is unintuitive

6 votes

Does a photon's wavelength (and energy) change when reflecting off a mirror?

5 votes
Accepted

Where does the labelling of extrinsic semiconductors as "n" and "p" come from?

5 votes

Ionizing radiation in thermal radiation

4 votes

Electronic band structure of proteins

4 votes

Why does the sun always have some whiteness?

4 votes
Accepted

Does the half-life of an element mean it will never decay completely?

3 votes

Shouldn't there be short circuit everywhere?

3 votes

Why Does Germanium Spontaneously Extrude Long Screw Dislocations?

3 votes
Accepted

Why is the triple point of water defined as 0.01 degrees Celsius and not 0?

2 votes
Accepted

what limitations stop a person from installing solar panels on his/her house?

2 votes

Semiconductors vs. Metals Conductivity at High Temperatures

2 votes

Is dark matter paramagnetic/diamagnetic?

2 votes
Accepted

Relation between energy band gap and atomic number

2 votes

How can EM waves propagate indefinitely when they really are oscillations of electric and magnetic fields?

2 votes

Force required to propel mass in vacuum

2 votes

Maxwell's equations without special relativity

2 votes

Why can we use single electron Schrodinger equations to describe electrons in solids?

2 votes

What is the temperature at which Napalm burns?

2 votes

Are all Bell tests valid only for linearly-polarized photons?

2 votes
Accepted

Why does the depletion region shrink in a forward biased p-n junction diode?

2 votes

Stone skipping does spinning help?

1 vote

What am I doing wrong in electrolysis of water?

1 vote
Accepted

free electron approximation verses tight binding approximation

1 vote

What's the real-space equivalent of the Fermi surface?

1 vote

Coffee cooling in a cup

1 vote

I have a thought experiment that defies the uncertainty principle - what's wrong with it?

1 vote
Accepted

Missing link re: how does kelvin relate to temperature when talking about color temperature?