26. Nov 13 - 8:45

What Exactly Is Sea Level - Video

We all learn about sea level in elementary school, and often see signs on the road telling us how high above sea level we are. 

But what exactly does sea level mean?

The Earth isn’t a perfect sphere, and there isn’t any water near many of the world’s tallest mountains. So how do scientists quantify sea level?

Thankfully, educational channel Minute Physics has stepped forward to explain the concept for all of the web. 


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