Pokemon TCG Pocket has plenty to do. From collecting all the cards, battling other players, and of course, taking part in all the active events. Whether you’re opening booster packs, joining PvP ...
[MindYourDecisions] presents a Babylonian tablet dating back to around 1800 BC that shows that the hypotenuse of a unit square is the square root of two or 1.41421. How did they know that?