Why Everything in the Universe Spins | Documentary for Sleep скачать в хорошем качестве

Why Everything in the Universe Spins | Documentary for Sleep

A ballerina pulls her arms in and suddenly rotates faster — no motor, no magic. That same rule explains how a neutron star (a dead stellar core only ~20 km across) can spin hundreds of times per second, sending out precise pulses like a cosmic lighthouse. These objects are called pulsars, and their rotation is so stable it can rival atomic clocks. In this documentary, we follow the thread from a simple stage spin to the deepest idea behind it: conservation of angular momentum — and the surprising reason it exists at all. Because the universe doesn’t “care” which direction you face, rotation has a kind of permanence. That single fact links: • figure skaters and hurricanes • spinning planet-forming disks and flattened solar systems • fast-rotating gas giants and bulging equators • black holes that drag spacetime • and even quantum particles that have “spin” without being tiny spinning balls We’ll also meet the human story behind the discovery of pulsars, the record-breaking fastest spinners, and the mind-bending connection between symmetry and conservation laws (the Noether link). If this kind of physics makes your brain pleasantly hum at night, consider subscribing for more calm, deep-space stories. Tell me where you’re listening from tonight — your city + timezone. You’re on a planet that’s been spinning nonstop for 4.5 billion years. Sources: 1. NASA — “RXTE Discoveries” (pulsars as lighthouse-like beams sweeping Earth) 2. NASA — “NICER Delivers Best-ever Pulsar Measurements” (what pulsars are; rapid rotation; beams sweeping past Earth) 3. NASA Goddard (Blueshift) — Fastest-spinning pulsar explanation & extreme rotation context 4. University of Cambridge — Jocelyn Bell Burnell’s 1967 pulsar discovery story (regular pulses; early “LGM” nickname context) 5. NobelPrize.org — 1974 Nobel Prize in Physics (radio astronomy / pulsars era background; Hewish & Ryle) 6. Hessels et al., Science (2006) — discovery/report of the 716 Hz millisecond pulsar (PSR J1748–2446ad) 7. CERN — Noether’s theorem overview (symmetry ↔ conservation laws) 8. LibreTexts (Classical Mechanics) — rotational invariance ↔ conservation of angular momentum (clear educational derivation)