Tuesday, April 12, 2011
Monday, April 4, 2011
Nobel Lecture by Paul A. M. Dirac; Theory of electrons and positrons [1933]
Nobel Lecture; The Nobel Prize in Physics 1933, {Theory of Electrons and Positrons}; by Paul A.M. Dirac; December 12, 1933
From our theoretical picture, we should expect an ordinary electron, with positive energy, to be able to drop into a hole and fill up this hole, the energy being liberated in the form of electromagnetic radiation. This would mean a process in which an electron and a positron annihilate one another. The converse process, namely the creation of an electron and a positron from electromagnetic radiation, should also be able to take place. Such processes appear to have been found experimentally, and are at present being more closely investigated by experimenters.
Nobel Lecture by Paul A. M. Dirac; Theory of electrons and positrons [1933].png
Saturday, April 2, 2011
Friday, April 1, 2011
Text for Douglas Tang's Graduation Book, Yearbook, Class 2011, Dietrich High School, Dietrich, Idaho, USA; by his father, WeiJin Tang (IR91)
2011-04-01
I wish my son, Douglas Tang, can help me to build a heaven on earth for our future generations just as we, as his parents, always do our best to build a heavenly family for him. Love is the key to everything! Dear Douglas, I hope you can remember that, for God is love.
WeiJin Tang
WeiJin Tang (湯偉晉)
湯偉晉 (WeiJin Tang) 親手寫於 西元 2011-04-01