Ep. 48: Tidal Forces Across the Universe

Last week we talked about tidal forces within our solar system. This week we're going to expand our view and encompass the entire universe. Some of the most dramatic events originate from tidal forces caused by gravity: other worlds, galaxies, black holes and even entire clusters of galaxies are under this influence.
 
Episode 48: Tidal Forces Across the Universe (12.2MB)
 

Ep. 47: Tidal Forces

Consider the following: we've got tides here on Earth, the Moon only shows one face to the Earth, we've got volcanoes on Io, and ice geysers on Enceladus. All these phenomena originate from a common cause: the force of gravity stretching across space to tug at another world. Episode 47: Tidal Forces (13.4MB)
 

Ep. 42: Magnetism Everywhere

You probably don't realise it, but magnetic fields are everywhere. We're not talking about the magnets in your speakers, your electronic equipment or on the fridge door. We're talking about the gigantic magnetic fields that surround planets, stars, galaxies and some of the most exotic objects in the Universe.
 
Episode 42: Magnetism Everywhere (13.5MB)