Rokken on AliExpress.com from $33.99
Supposedly Einstein thought only 2% of people could figure this out. Took me a little white with pen and paper, but I got it! Google "Einstein's Riddle Answer" to find the answer.
Emerald in matrix of a small amount of Pyrite on Calcite
Kidney Stone, Microscopic View
How to make beer bottles into glass cups.
M.C. Escher – Cirkellimiet IV
Things to do this summer: burn dandelion. It burns all different colors!
I'm going to succeed because I'm crazy enough to think I can