Physics
Physics explains why gold stays pristine
Metals like copper oxidize — reacting with oxygen in the air — but gold doesn’t, thanks to a quick switch in atom arrangement on its surface.
Metals like copper oxidize — reacting with oxygen in the air — but gold doesn’t, thanks to a quick switch in atom arrangement on its surface.
We summarize the week's scientific breakthroughs every Thursday.
A study of 50 crab species in Japan traces the iconic sideways walk to a single ancestor, suggesting the trait drove the group's remarkable diversity.