Real Engineering

Interesting answers to simple questions.



Centripetal Motion

Tether Launchers

Material Limits

Tapering the Tether

Course description

In Real Engineering’s course, you’ll take on a crazy idea – throwing rockets into space. After learning the essential rocket physics and materials science, you can evaluate for yourself if this is an idea that's stuck on the ground, or a billion dollar shortcut to space.

Topics covered

  • Tsiolkovsky's equation
  • Energy conservation
  • Newton's law
  • Rocket staging
  • Centripetal acceleration
  • Tether slings
  • Costing
  • Material strength
  • Heat transfer