TechnologyHumans strike back: How Lee Sedol won a game against AlphaGo Lee Sedol defeated Google's powerful Go-playing AI on Sunday, at the fourth attempt ¿ìè¶ÌÊÓÆµ
PhysicsA black hole's edge will burn you up if you try to escape The edge of a black hole, beyond which not even light can escape, can be smooth an uneventful or a burning wall of fire, depending on your perspective ¿ìè¶ÌÊÓÆµ