• It's so funny to﻿ see Adam Savage without some sort of disastrous explosion behind him.

• You﻿ didn´t listen.

• 25000 miles﻿ is within 1% of the circumference of the Earth.

7,918*3.14=24,862.52

24,862.52/25000=0.9945008

• These Youtube educational videos with these visual drawings make paying attention so easy. It keeps you engaged. They should﻿ just teach in schools with flying clipart.

• Good catch. Didn't notice that.

It's at 3:33 if anyone want to see.﻿

• he didnt confuse them, adam savage misspoke, actually.

he meant to say circumference but said diameter. so galleon12 is actually right in his question. though we do know﻿ what savage meant

• actually adam savage misspoke -- he meant to say circumference, not the diameter. circumference ~25k miles, about radius﻿ is ~4.95k miles (rending diameter about ~7.9k miles)

• I can't imagine how they made a measurement from miles away at the exact same time between Alexandria and Sweneth... how did the librarian knew it was perfectly noon in a distant city?.. I call﻿ fake here

• I'm not﻿ sure where to suggest a lesson, and if they already did this, a link would be appreciated. TEDEd, what makes music so enjoyable or non-enjoyable?

• I don't know why you're getting so much flack. You're right. Adam Savage did say﻿ the 25000 miles was in 1% of the actual diameter of the Earth. (at 3:33) He meant to say circumference though.

• Circumference﻿ and diameter, I think you're confusing them.

• Inspirational.﻿