What is a fake force? Let me illustrate with an example. Suppose you want to use Newtonian mechanics. You know - where the net force is the rate a which the momentum changes with time? Or maybe you ...
Scientists have created the fastest spinning man-made object in the world: an incredibly small "dumbbell" that can complete more than 60 billion rotations per second, which is around 100,000 times ...
The fastest-spinning manmade object has been created in a lab at Purdue University. This microscopic rotor is made up of two silica nanoparticles stuck together to form a "dumbbell," and by hitting it ...
To detect the quantum friction of empty space, scientists are going for a spin. A twirling nanoparticle, suspended in a laser beam inside of a vacuum, can measure tiny twisting forces, making it the ...
If you’ve never heard of Bernoulli forces, you’ll certainly have experienced them. These are the forces that keep aircraft aloft, that draw fuel into your car’s carburetor and cause spinning tennis ...
Interactions between a spinning object and soundwaves could help develop high-precision tools, such as tweezers that control the motion and position of submillimeter objects by manipulating acoustic ...
Water droplets with two or three lobes have been made by physicists in the UK, who levitated and spun the liquid using a giant magnet. The experiment could help physicists gain a better understanding ...
Astronomers studied near-Earth asteroid 1950 DA and discovered that the body, which rotates extremely quickly, is held together by cohesive forces called van der Waals, never detected before on an ...
Physicists studied crystals made of rotating objects that fragment easily, show unusual defects, and follow a new theory predicting their unique behavior. (Nanowerk News) Physicists from Aachen, ...
When humanity first started studying motion, circles posed a peculiar puzzle. Why do planets sweep endlessly around the Sun without flying off into the void of space? Why does a stone swung on a ...