Margaret Christine Campbell – författare
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1 produkter
Discovering Atoms
Av Margaret Christine Campbell, Natalie Goldstein
E-bok, 2011
594 kr
Lägg i varukorg
The earliest humans understood matter on a very basic, practical level. Through trial and error they determined which rocks could make good spearheads and good pounding or grinding stones. The Bronze Age began about 2000 BCE when rocks containing copper and tin were heated together. The combination …
