Today in History – February 29, 1940 – The Nobel Prize in Physics was presented to Ernest Lawrence “for the invention and development of the cyclotron and for results obtained with it, especially with regard to artificial radioactive elements“. Due to WWII, the prize could not be awarded in Sweden and was awarded instead in Berkley, [...]
Entries Tagged as 'Physical Sciences'
Engineering Education “Today in History” Blog: Ernest Lawrence accepts Nobel Prize in physics for the cyclotron
February 28th, 2014 · Add a Comment
February 27th, 2014 · Add a Comment
James Chadwick and the Alsos Digital Library for Nuclear Issues Today in History – February 27, 1932 – Chadwick publishes his discovery of the neutron. Until 1932, the atom was known to consist of a positively charged nucleus surrounded by enough negatively charged electrons to make the atom electrically neutral. Most of the atom was [...]
January 9th, 2014 · Add a Comment
Today in History – January 09, 1839 - Louis Daguerre announces his photographic process. The first permanent photograph was made in 1826 by Joseph Niepce. Together with Louis Daguerre they further refined the process. The process involved silver-coated copper plates mixed with iodine to create a layer of silver iodine. After being exposed to light for several [...]
Engineering Education “Today in History” Blog: Foucault physically demonstrates that, yup, the Earth rotates!
January 6th, 2014 · Add a Comment
Today in History – January 6, 1851 - Foucault physically demonstrates the rotation of the Earth. Now this isn’t so easy to do because the earth rotates pretty slowly. How slowly? Well, it takes a full day to go around once, eh? So in a minute it’s going to rotate about, oh, 0.0007 revolutions. Not much. [...]
December 27th, 2013 · Add a Comment
Today in History – December 27, 1571 - Birth of Johannes Kepler. When Kepler made his calculations from measurements taken by Tycho Brahe and himself, at the turn of the seventeenth century, they had to create many of the instruments that they used. The types of tedious observations and measurements taken by Brahe and Kepler had [...]