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Book 147: Einstein's Cosmos by Michio Kaku

Einstein’s Cosmos by Michio Kaku

Finished reading on July 21st, 2014

Rating: 9/10

Kaku’s “Einstein’s Cosmos” fits Albert Einstein’s life and work into less than 200 pages of highly readable story that gives insight into Special and General Relativity and also his try to find a Unified Field Theory without going into too much detail about the physics nor about Einstein’s private life… although you can read about Einstein not wearing socks. 102 more words

Book Review

Wave property of electrons implies that they will show diffraction effects. Davisson and Germer demonstrated this by diffracting electrons from crystals. The law governing the diffraction from a crystal is obtained by requiring that electron waves reflected from the planes of atoms in a crystal interfere constructively (see in figure). 160 more words

Modern Physics

Photon of frequency ν has a momentum associated with it. If c is the velocity of light, the momentum is

(1) ν/c (2) hνc  (3) hν/c2 (4) hν/c

Modern Physics

. In gamma ray emission from a nucleus

(1) both the neutron number and the proton number change

(2) there is no change in the proton number & the neutron number. 10 more words

Modern Physics

The ‘rad’ is the correct unit used to report the measurement of

(A) the rate of decay of radioactive source

(B) the ability of a beam of gamma ray photons to produce ions in a target… 15 more words

Modern Physics

The (Brout-Englert) Higgs boson and the Stability of the Universe

So last night social media went mad with a story about the higgs boson destroying the universe, which I slowly realised was about my own work which my (very good) student Robert Hogan… 878 more words

Down the Quantum Hole reblogged this on Down the Quantum Hole and commented:

Insightful comments shedding light on the recent social media buzz about the Higgs, BICEP 2 and the possibility of the universe collapsing, from the co-author of the original paper, Dr. Malcolm Fairbairn.

The Principle of Galilean Relativity

When watching your dog run through the field after a tennis ball you are watching an event happen. You would see the event differently if you were standing than if you were running next to your dog. 247 more words

Ball