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News
Why Do You Look Different In Photos Than In The Mirror?
20+ hour, 29+ min ago (1248+ words) You left the house feeling good. The bathroom mirror said so. The gap is wide enough that people genuinely wonder which version is real. Has the mirror been flattering them for years? It has not. Neither has the camera been…...
Why Do Small Animals Survive Falls That Kill Big Ones?
17+ hour, 39+ min ago (1769+ words) Hold a sheet of paper flat and let go. It wobbles down like a leaf. Now crumple that same sheet into a ball and drop it again. It falls like a stone. Nothing about the paper changed. Not one gram…...
Why Are There No Heat Pump Stoves?
18+ hour, 47+ min ago (1877+ words) Open your fridge. That gentle hum you have ignored your whole life is a heat pump, and it is very good at its job. Walk around the house and you will find more. Heat pumps now warm rooms, heat water,…...
Why Is Earth's Gravity Lumpy? What The "Potato Earth" Map Really Shows
1+ day, 20+ hour ago (1332+ words) Scroll far enough into the right corner of the internet and you will eventually meet it. A lumpy, bruised, golden blob floats on a black background. It's labeled something like "the real shape of the Earth." It looks less like…...
Why Don't Car Engines Melt, But Machine Gun Barrels Do?
1+ day, 20+ hour ago (1136+ words) Picture a family sedan on a long summer drive. Inside each cylinder, fuel and air are being set on fire thousands of times a minute. This goes on for hours. The engine does not care. That same engine will do…...
Infinite Monkey Theorem: Could Monkeys With Magnets Ever Produce Windows?
2+ day, 20+ hour ago (954+ words) There is a scene in Breaking Bad where the characters park a truck full of powerful magnets next to a police evidence room. They switch the magnets on. A laptop inside is wiped clean through the wall. No one touches…...
How Long Does A Fridge Stay Cold Without Power?
3+ day, 20+ hour ago (1192+ words) Picture a summer storm. The power flickers, then dies, and the house goes quiet. You are at work, or asleep, or watching the rain, and the fridge sits there in the dark doing nothing you can see. Sixteen hours later…...
Why Is The Last Few Percent Of Chemical Purity The Hardest To Achieve?
4+ day, 20+ hour ago (1293+ words) Early in the fourth season of Breaking Bad, a chemist named Gale looks over a rival's product. His own best work reaches about 96% pure. The rival's hits 99%. Gale is not angry. He is almost reverent. That last stretch, he says,…...
Why Does Opening And Closing A Microwave Door Have To Be So Loud?
4+ day, 20+ hour ago (689+ words) Picture this. It is 2 a.m., you want leftover pizza, and the whole house is asleep. You ease the fridge open in silence and pull a plate from the cupboard without a sound. Then you open the microwave, and it goes CLACK....
Where Does Light's Energy Go When It Is Cosmologically Redshifted?
5+ day, 20+ hour ago (1847+ words) In July 2022, NASA released Webb's first deep field. It is a scrap of sky about the size of a grain of sand held at arm's length. It is packed with galaxies. Light from those galaxies set out as visible and…...