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This is angular momentum The invisible force that can steer a ship

Mechanical Knowledge

136,013 subscribers

219,766 次观看 • 1 年前 •via X (Twitter)

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A gyroscope is a device that measures orientation and angular velocity, using the principle of angular momentum to resist changes in its rotation. It helps maintain balance and stability, commonly, airplanes, and ships

A gyroscope is a device that measures orientation and angular velocity, using the principle of angular momentum to resist changes in its rotation. It helps maintain balance and stability, commonly, airplanes, and ships

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Such a fun demo for demonstrating the conservation of angular momentum. #iteachphysics

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ghost ship this ghost ship that, ugh this is the REAL ghost ship 🤨

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It never gets old: angular momentum visualized [source, full video:

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2D FFT is one of those things that you stare at it long enough and it would suddenly make sense. is this gonna cure my hatred towards OAM beams? i don't really hate OAM (orbital angular momentum), it is more because some people treat it as magical extra degrees of freedom that you can get for free.

2D FFT is one of those things that you stare at it long enough and it would suddenly make sense. is this gonna cure my hatred towards OAM beams? i don't really hate OAM (orbital angular momentum), it is more because some people treat it as magical extra degrees of freedom that you can get for free.

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The way this woman just bounces off of him like she ran into an invisible force field is hysterical.

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now THIS is a ship i can get behind

now THIS is a ship i can get behind

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This is why Neutron stars spin insanely fast They spin fast because of angular momentum When a massive star collapses into something only a few kilometers wide, the rotation intensifies A collapsing star isn’t just dying, it’s compressing motion into madnes

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This ship was built in such a way that it can never sink

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🚨 SCIENTISTS MAY HAVE FINALLY SOLVED ONE OF THE BIGGEST UNSOLVED PROBLEMS IN BLACK HOLE PHYSICS. For years, astrophysicists have struggled with the “final parsec problem”: even after two supermassive black holes get relatively close, they struggle to shed enough angular momentum to merge within the age of the universe. New 3D simulations reveal that magnetic fields in the gas disk surrounding a binary system can solve this. The fields trigger powerful outflows and jets that efficiently carry away angular momentum, allowing the two objects to spiral much closer together. The same mechanism also explains how some binary stars end up in extremely tight orbits. In the simulations, binaries without magnetic fields actually moved farther apart. With magnetic fields present, they rapidly lost angular momentum and migrated inward. Why this matters: • It provides a physically motivated solution to one of the biggest open problems in black hole astrophysics • Magnetic fields appear to be far more effective at removing angular momentum than previously modeled effects • The mechanism works for both star formation and black hole mergers • It shows that the environment around binaries (not just the objects themselves) plays a decisive role in their evolution The deeper implication: We often think of black holes and stars as isolated objects governed purely by gravity. But these simulations show that the magnetic fields threading the gas around them can fundamentally change their fate. By removing angular momentum through jets and outflows, magnetic fields act like a cosmic brake, allowing binaries to reach the tight configurations we observe. This doesn’t just help explain star formation it may finally tell us how the universe’s most massive black holes manage to merge and create the gravitational wave signals we’re now detecting. Sometimes the key to cosmic mergers isn’t gravity alone. It’s magnetism. How important do you think magnetic fields are in shaping the final stages of black hole mergers and binary star evolution? Follow for more frontier astrophysics and the hidden forces that govern the universe.

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