Speed of light | Fierce Earth

Because of the speed of light compared to sound, you can determine that every 5 seconds that passes before hearing thunder, the lightning is 1 mile away.

Clip Info
  • Clip length: 1'00''
  • Broadcast year: 2013
Curriculum Connection
  • Geography | Human and physical geography | Climate zones

Licence: ERA Licence required


UK only
Staff and students of licensed education establishments only
Cannot be adapted

  • Provider: BBC
  • Channel: CBBC
  • Programme: Fierce Earth
  • Series: 1
  • Episode: Thunderstorms