http://www.businessinsider.com/anthony-green-tutoring-2014-8
That promise seems to be enough for his well-heeled clientele (kids of Fortune 500 CEOs). And for this very small but wealthy minority, money is truly no object. Green charges $1,500 for 90 minutes of one-on-one tutoring, and he insists on a minimum of 14 90-minute sessions, with very rare exceptions.
Join the repair crew, fixing a finger of the Christ the Redeemer statue, which was damaged by lightning.
http://www.feynmanlectures.caltech.edu/
...and spiffed up for mobile devices, so no excuses!
http://www.vintagewings.ca/VintageNews/Stories/tabid/116/articleType/ArticleView/articleId/484/language/en-CA/The-Mother-of-All-Drones.aspx
A profile drawing of the very same de Havilland DH-82B Queen Bee as used in the demonstration for Winston Churchill. Note the red undersides of the upper wingtips – applied to later production models and used to help gunners see the angle and direction of flight at a distance. A steam catapult was used when the aircraft was launched on floats. Image via WingsPalette