"It has been shown by and others that when bombarded by s of emits a radiation of great penetrating power, which has an absorption coefficient in lead of about 0.3 (cm.)–1. Recently and found, when measuring the ionisation produced by this beryllium radiation in a vessel with a thin window, that the ionisation increased when matter containing hydrogen was placed in front of the window. The effect appeared to be due to the ejection of protons with velocities up to a maximum of nearly 3 × 109 cm. per sec. They suggested that the transference of energy to the proton was by a process similar to the , and estimated that the beryllium radiation had a quantum energy of 50 × 106 s."
Quote Details
Added by wikiquote-import-bot
Unverified quote
0 likes
University of Cambridge alumniFellows of the Royal SocietyNobel laureates in PhysicsPhysicists from EnglandNobel laureates from England
Original Language: English
Available Languages (1)
Sources
Imported from EN Wikiquote
https://en.wikiquote.org/wiki/James_Chadwick
Revision History
No revisions have been submitted for this quote.
Categories
James Chadwick
, , (20 October 1891 – 24 July 1974) was an English who was awarded the 1935 for his in 1932. During WW II, Chadwick headed the British team that worked on the Manhattan Project. In 1945, George VI of the United Kingdom appointed him .
2 quotes on TrueQuotesView all quotes by James Chadwick →
Related Quotes
"The idea that there might exist small particles with no electrical charge has been put forward several times. , for e…"
"The more I thought about it, the more obsessed I became with the idea of a swimming journey. I started to dream ever …"
"From water level, I observed the mating joined in flight like refuelling aircraft, and the random progress of the clo…"
"It is through trees that we see and hear the wind: woodland people can tell the species of a tree from the sound it m…"
"Waterlog (1999), Roger's now-classic account of swimming through Britain, published twenty years ago this year, opens…"
"In 1973, Roger Deakin, a British writer and environmental activist, acquired a tumbledown sixteenth-century farmhouse…"
"Der lange Marsch durch die Institutionen."
"The poet of England, he gave to the love of country, to patriotism as nowadays we call it, a voice which never shall …"
"It is in Henry V. that Shakespeare fashioned for us the true epic of England. The dramatic form sits very loosely upo…"
"For Shakespeare, as I have said, was above and before all things a lover of England. With how bitter a contempt would…"