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2020-11-18: The Arrow of Time and How to Reverse It

  • 07:17: ... particles across our universe - in the form of galaxies - we don’t see random motion. We see galaxies racing away from each other, which means they were once ...

2020-05-04: How We Know The Universe is Ancient

  • 04:40: ... away from us due to the expansion of the universe - they also have random motion as they’re tugged by the gravitational fields of nearby galaxies and ...

2019-03-13: Will You Travel to Space?

  • 14:05: Now to remind you, the Brownian ratchet has this flywheel that turns a cog due to random motions of particles hitting the flywheel.

2018-04-11: The Physics of Life (ft. It's Okay to be Smart & PBS Eons!)

  • 01:07: The particles that make up any system all have some degree of random motion.
  • 01:13: That random motion tends to drive the system towards the most common arrangement of particles.

2017-08-02: Dark Flow

  • 00:51: The random motion of galaxies-- what we call peculiar motion-- should also have no preferred direction.

2017-04-26: Are You a Boltzmann Brain?

  • 00:44: He showed that the laws of thermodynamics can be explained by thinking of gas as a collection of microscopic particles in constant, random motion.
  • 03:52: ... of gas will happen to all end up in one corner of the room, due to their random motion. ...

2017-03-15: Time Crystals!

  • 08:51: ... doesn't take much random motion from heat to scramble a carefully prepared array of entangled spin ...

2016-06-22: Planck's Constant and The Origin of Quantum Mechanics

  • 03:10: Heat is just the energy in the random motion of particles comprising an object.

2015-03-25: Cosmic Microwave Background Explained

  • 02:12: In fact, it's called a thermal spectrum because the light is generated by the random motions of particles in the material.
  • 02:17: And those random motions are themselves a reflection of temperature.
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