StarTalk Radio

Cosmic Queries – The Fabric of Spacetime

Jun 6, 2023
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INSIGHT

Colliders As Portals To The Big Bang

  • Particle accelerators recreate early-universe conditions by infusing energy to produce short-lived particles.
  • They act as laboratory portals to the Big Bang rather than destructive 'smashers'.
INSIGHT

Buoyancy Explains Floating Objects

  • Clouds and balloons float because of buoyant forces from the surrounding fluid, not because gravity is absent.
  • Objects lighter than their medium rise even though gravity still acts on them.
INSIGHT

The Electron's Size Is Unknown

  • 'Particle' can be a placeholder for things whose size we cannot measure, notably the electron.
  • We measure electron charge and mass but have never resolved its physical size; it may be pointlike.
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