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https://www.nobelprize.org/educational/physics/matter/1.html
Nobelprize.org
The Official Web Site of the Nobel Prize
Structure of Matter
Atoms are made from a nucleus of protons and neutrons and a cloud of electrons. Electrons are in constant motion around the nucleus, while the protons and neutrons move within the nucleus. Neutrons and protons are each composed of three quarks. As far as scientists can tell at the moment, quarks and electrons are among the most fundamental forms of matter.
The Quiet Earth (1985)
00:51:22 video:
Zac Hobson: There are a number of constants which have never been known to change in the history of science.
https://archive.org/stream/in.ernet.dli.2015.160709/2015.160709.Fire---Controltechnician-M3_djvu.txt
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- posted by Kerry Burgess 9:56 PM Pacific Time Spokane Valley Washington USA Tuesday 26 December 2017
