Mechanical calculator dividing by zero

Amazing fact about bacteria

A bacteria multiplying for 16 days made the same amount of generations as a human in 30,000 years.

20th century theoretical physics discovery timeline

• 1900: Black-body radiation law (Planck).
• 1905: Special relativity, photo-electric effect and brownian motion (Einstein)
• 1907: Minkowski spacetime
• 1911: Equivalence principle (Einstein)
• 1913: Bohr Model of the atom (Bohr)
• 1915: Swarzschild equation of Blackhole (Swarzschild)
• 1916: General relativity (Einstein)
• 1923: Matter-waves (de Broglie)
• 1925: Bose-Einstein condensate
• 1925: Pauli exclusion principle (Pauli)
• 1926: Schrödinger Equation (Schrödinger). Born rule (Born)
• 1927: Big Bang/Primordial atom (Lemaitre)
• 1927: Uncertainty principle (Heisenberg)
• 1928: Prediction of antimatter (Dirac)
• 1935: EPR paradox
• 1935: Yukawa theory of strong interaction (Yukawa)
• 1938: Nuclear fusion in the sun (Bethe)
• 1948: Big bang nucleogenesis (Alpher-Bethe Gamowpaper)
• 1956: Yang Lee parity violation theory
• 1957: Superconductivity explained (Bardeen, Cooper, Schrieffer)
• 1964: Bells theorem
• 1975: Hawking radiation
• 1980: Cosmic inflation theory

.. to be continued

 

Experimental physics disoveries

1932 Neutron discovery (Chadwick)

1946 Nuclear magnetic resonance ( in 1980 first MRI scanner)

1964 Cosmic Background radiation

1995 top quark discovered

 

Cool video of Stern-Gerlach experiment

De units of Hbar

So apparantly the units of Planck’s constant is the same as the units of Angular momentum. I don’t really get this why would this be. Kg m^2/t

If we look at E=hv … why is the frequency times a constant related to the angular momentum the same as the energy of the photon. Is this an interesting connection? I don’t know.

 

What is the angular momentum of a wave … its polarization?

 

Or does it have to do with angular frequency?

Elitzur Vaidman bombs, quite interesting

 

 

What would happen if you put a black hole there instead of a bomb