
Physics
Wiggling robots reveal the physics of how Hula-Hoops stay up
Newbies should swing their Hula-Hoops fast and in line with their bodies, the new findings suggest.
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Newbies should swing their Hula-Hoops fast and in line with their bodies, the new findings suggest.
If trees could act as natural antennas, one physicist proposes that they just might pick up signals of hard-to-spot ultra-high energy neutrinos.
Experiments with a floating sprinkler revealed the surprisingly complex physics behind a simple question.
Some objects float on top of the ocean, and other objects sink to the bottom. Why? Try this eggs-periment to find out!
When an object experiences a force, its change in motion — or acceleration — depends on its mass.
Two types of friction help determine how quickly a line of dominoes collapses, computer modeling shows.
Inertia is the tendency of objects to resist changes in their motion.
Four fundamental forces control all interactions between matter, from the smallest subatomic particles to the largest structures in the universe.
Quantum sensors like this one could monitor magma beneath volcanoes or uncover archaeological artifacts.
Learn why these terms aren’t the same and which to use where. And should you report your results in kilograms? Pounds? If in doubt, try using newtons.