Graphics by kind permission of
"nanoart": Eva Mutoro - "Auflösung einer Silberschicht"/
with kind permission of science2public - Gesellschaft für Wissenschaftskommunikation.
Diamond mine: © zebra0209 - Fotolia.com
white powder: © fet - Fotolia.com
coarse sand: © ThorstenSchmitt - Fotolia.com
fine sand: © Nataliya Galkina - Fotolia.com
child in sand: © abcmedia - Fotolia.com
fine concrete: © Photogrape - Fotolia.com
coarse concrete: Alex - Fotolia.com
diamond: Andrey Stratilatov, shutterstock
uncut diamond: Zbynek Burival, shutterstock
bridge: Luis Santos, shutterstock
drug: Pauline Breijer, shutterstock