How the compass unlocked the world | Small Thing Big Idea, a TED series

“Everything that we think of as world history would not have taken place without the compass.” Science curator David Biello explains how the device changed our relationship to the world.

Small Thing Big Idea, a TED original series, celebrates the lasting genius of everyday objects so perfectly designed that they changed the world around them. (Made possible with the support of The North Face)

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33 Comments on How the compass unlocked the world | Small Thing Big Idea, a TED series

    • dang – I was hoping for the secret of latitude measurements being revealed. Instead it’s animatronics.

    • With the modern age of 9s attention spans down from 15s or what ever… The internet age is great, i watch much of educational content on 1.25 – 1.5 speed as well as podcasts. Ted talks also, i fear I am not alone, the creators get the video usage stats, so ted must know people tune out, so they are, like many other utubers i see now, have accelerated content with cuts to minimise tune out of those with little attention spans….. So just as history and discovery channel went a route of reality tv, so are utube creators catering to larger demand…..

    • Chuck Brenner Indianashogman you should learn how important compass to human civilisation, in the age of discovery, compass plays a very important roles in maritime travel.
      Let say you have a watch in your hand, would get accurate time by observation from the rise and position of sun and moon or you just get what you want from your watch and crack on to work?

    • @lau chengcin I understand that the compass helped navigation tremendously, but as long as they had the sun and moon, they didn’t get lost. They were raised to know those things.

    • @Chuck Brenner Indianashogman Except they didn’t always have the sun and moon. The weather can be cloudy, sometimes for weeks on end in some parts of the world, and at some time of year. This can make travel extremely risky.

  1. I was reading some school level magnetism and the compass and the earth’s magnetic field today and felt like pulling my hair out. This gets uploaded today… right time to put tape over my selfie cam from now on

  2. They work great except for areas with strong magnetic field. They can even get uncalibrated if you go through the North Pole, South Pole, or Mecca.

  3. We knew the world was a sphere long before magnetism/compasses were developed. Ancient greeks had surprisingly accurate estimates of the diameter of the earth.

  4. Got to love those wish, bang, boom sound effects!
    I almost lost lost my attention and moved onto a different video, but thank god they kept me staying here.

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