Objective To assess Multi-directional Impact Protection System (MIPS) helmet technology on rotational velocity during head impact using a novel testing method. Design Optimization study. Setting ...

When the 2020 Major League Baseball season starts – notice we’re ever-so-optimistically saying “when” and not “if” – the A’s starting rotation may be the hardest throwing in the history of the ...

Scientists have just plotted changes in Earth's axis through laboratory measurements. To do this, they constructed the world's most stable ring laser. Previously, scientists were only able to track ...

Understand rotational motion in a clear, intuitive way with a lesson designed to stick with you forever. This video breaks ...

Really. If you are moving in a straight line, you could think of this as a non-constant angular velocity. Also, you can think of the moment of inertia of the person as changing since the person is ...

A research team has investigated long-term X-ray variability in the neutron star NGC 7793 P13, an object thought to be driven by supercritical accretion, where an extraordinary amount of gas falls ...

If the length of a day changed by fractions of a millisecond, it probably wouldn’t make you late for work—that’s still on you. But the speed of Earth’s rotation does very subtly change over time, ...

If you’ve ever played with tops, you know that some spin easily while others wobble. Ever wonder why? The answer has to do with rotational inertia, a property shared by all rotating systems. Sometimes ...