All samples (2 nM, 10 μL) were dripped onto a freshly peeled mica surface and incubated at room temperature for 5 min. The sample was scanned with SCANASYST-FLUID+ tips (Bruker) and conducted under a ...

Chip Clark, courtesy Smithsonian Institution, National Museum of Natural History Somewhere in Brazil in the 1500s, a Spanish conquistador washed the dirt from a green tourmaline crystal and confused ...