Just like his beloved grandfather, Avi Reichental is a maker of things. The difference is, now he can use 3D…
16:59 minutes · Posted Sep 2014 · TEDxSonomaCounty Childhood is surreal. Why shouldn’t children’s books be? In this charming talk,…
Dan Barasch and James Ramsey have a crazy plan — to create a park, filled with greenery, underneath New York…
How much do you know about the world? Hans Rosling, with his famous charts of global population, health and income…
Why is there something instead of nothing? In other words: Why does the universe exist (and why are we in…