Friction is what stops coins from spinning. In this video, The Action Lab demonstrates a number of spinning things nd spinning surfaces to explain how friction affects how long they spin, and the best surfaces for keeping them spinning as long as possible.
A plane is on a giant conveyor belt, which is moving in the opposite direction that the plane is pointed. Will the plan take off, no matter how fast the conveyor belt is moving? Adam Savage explains why the plane will indeed take off. Now Adam, explain how a wind-powered vehicle can move downwind faster… READ THE REST
After writing about the collision between two black holes that weren't "supposed to exist," I received the following email from Álvaro Díez, a particle physicist at the University of Warsaw: Being a huge astrophysics enthusiast, I just built a Black Hole Collision Calculator that explains the after-effects of a star (or any astronomical object) being eaten by… READ THE REST
Worrying about data breaches isn't just for the Amazons and Facebooks of the world. Oh sure, you should be concerned if you're one of the 533 million who had info exposed in the latest Facebook breach. But a bigger worry is what happens if customer information, details that you're responsible for, somehow get exposed to… READ THE REST
There are plenty of top-notch quality knives and knife sets crafted all over the world, from Germany, France, and the heart of Europe, to plenty of premium craftsmen in the U.S. But there's definitely something about a finely honed blade made from Japanese steel that still absolutely stops knife shoppers dead in their tracks. For… READ THE REST
If you're itching for a computer upgrade, Hewlett Packard is one of the half-dozen brands you can buy sight unseen and know you're getting a quality rig. Of course, where's the fun in buying a computer sight unseen? Right now, HP is giving everybody an eyeful of everything, making loads of renewed and fully restored… READ THE REST