John1024's user avatar
John1024's user avatar
John1024's user avatar
John1024
  • Member for 8 years, 5 months
  • Last seen more than a month ago
91 votes
Accepted

How does a heatsink on top of a CPU, which is hot, cool down your CPU?

75 votes
Accepted

If a lens focuses all incoming light to a point, how do we get 2D images?

48 votes
Accepted

Why can we see the moon when it is between the Earth and the Sun?

24 votes

Why can't the Navier Stokes equations be derived from first principle physics?

5 votes

Temperature dependence of spectra

5 votes

Air friction at supersonic velocities

4 votes

Understanding Stagnation point in pitot fluid

4 votes

Under what conditions is air is in chemical equilibrium?

4 votes
Accepted

Finding the approximate distance between molecules in a gas

3 votes
Accepted

Paradox about the efficiency of a thermal engine

3 votes
Accepted

Second Law of Thermodynamics and heating a blackbody with another blackbody

3 votes
Accepted

Is temperature the speed of electrons?

3 votes

What could cause a diode laser to be emitting the half-harmonic of the fundamental frequency?

3 votes
Accepted

Can I catch a single photon with webcam's CMOS or CCD sensors?

3 votes
Accepted

Any scientific basis behind "crystal energy"?

3 votes
Accepted

Is it possible to measure temperature using sound?

2 votes

Why does wavelength determine the energy of a photon?

2 votes
Accepted

Calculating lens parameters

2 votes

Key Assumption to derive the Uncertainty Principle --- Canonical Conjugate Operators

2 votes
Accepted

Conductance of semiconductors at very high temperatures

2 votes

Heat equation with heat loss to surroundings

2 votes
Accepted

Textbook explanation of the resonant frequencies of molecules

2 votes
Accepted

Can Kinetic Theory obtain fluids behavior?

2 votes

What is Method of Characteristics?

1 vote

Hydrogen Balmer Series

1 vote

Does the spring effect a moving ball?

1 vote

Why can't we increase the speed of sound in a constant Temperature-pressure condition?

1 vote
Accepted

Applying Biot-Savart to a circular loop along central axis

1 vote

How are determined experimentally the energy levels of the atoms ? How is the calibration done to several decimal points?

1 vote

Right Hand Rule on the magnetic field not working?