When our solar system formed from a swirling cloud of dust, it happened to form in such a way that all planets sit on a single plane. But with all of 3D space to choose from, why did it turn out flat?
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I like sausages. I like grilled sausages. I like fried sausages. I like beef, pork and chicken sausages. I even like vegetarian sausages. Sometimes when you cook sausages, they burst. This occasionally happens if you try and cook them too fast. It can also happen if the brand of sausage you are cooking is overly generous with their filling.
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This might look like the cut-stick project of a small child, but in fact this image visualizes the noise that a helicopter makes as it tears through the air. Really.
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We already knew
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Despite its unassuming looks and gentle temperament, the humble red breasted robin (Erithacus rubecula) boasts a superhero-like ability. They can see magnetic fields, giving them an almost perfect sense of direction.
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You’ve been told that "no two snowflakes are alike" more times than you can count. But is that actually the case? And if so—why? Fortunately, Joe Hanson of It’s Okay to Be Smart has done us the favor of breaking down the science of snowflakes, how they become so intricate, and why, even though some may appear similar, looks can be deceiving.
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String theory a beautiful, elegant piece of science which claims to unify all the forces in the Universe by representing tiny point-like particles as one-dimensional vibrating strings. It’s as clever as it is wacky but is—conveniently—untestable. Until, perhaps, now.
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Though it may look fake and unreal and impossible and not allowed on Earth, the camera stabilizer in the video is completely real. You can’t make it shake. It’s like magic decided to defy physics and ignore gravity. All I want to do is park myself in front of a mirror and do as many twists and turns and spins as possible to see if I can get the camera off track. Like this guy.
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Perhaps the main difference if the earth were a cube would be that students would become much more frustrated trying to calculate the gravitational field. For a uniform cube with side length L and density rho, the gravitational force on mass m at position (x,y,z) is given by
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You’ve probably heard that if you get in a rocket ship and fly fast, time will slow down. But, unless you’ve majored in physics, you probably don’t quite know why. Fortunately this video does a great job of explaining the phenomenon.
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