At the start of this new year we crack open some fossils, peer back into ancient seas, and look up at lunar skies to find that a year is not quite as fixed as we thought it was.
"Hey kids," said physicist Tadashi Tokieda, "Wanna see a magic trick?" He pulled out a Slinky and did something that amazed the kids, & their dad Steve Strogatz. Steve, along with Neil deGrasse Tyson, explains what the gravity-defying Slinky trick reveals about the nature of all things great and small (including us).
From hair parts to the origin of the universe, how symmetry shapes our existence.
The mathematician Charles Lutwidge Dodgson posed a big question about mirrors in one of his best-known books: Through the Looking-Glass (yup, Dodgson's pen name was Lewis Carroll). Natasha Gostwick of Storynory reads an excerpt that gets at the heart of the trouble: is mirror milk any good to drink? ...
A mysterious case of the topsy turvies and a return to the question of what felines feel when they fall.
Two stories of falling in everyday life, and one fantastical leap:
6. Falling Asleep: Professor Frederick Coolidge argues that our tree-dwelling ancestors are to blame for a hiccup in our sleeping patterns.
7. Walking as Falling: David Eagleman explains walking as the act of calibrating our steps to turn falls into forward motion.
8. Falling Apart: Neil deGrasse Tyson takes us on a one-way trip into a black hole.
We plunge into a black hole, take a trip over Niagara Falls, and upend some myths about falling cats.