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SciShow
The Unsung Mission That Made Apollo Possible
Before we could set foot on the moon, the Surveyor missions were sent to give future astronauts some sure footing.
TED-Ed
TED-ED: How many ways are there to prove the Pythagorean theorem? - Betty Fei
What do Euclid, 12-year-old Einstein, and American President James Garfield have in common? They all came up with elegant proofs for the famous Pythagorean theorem, one of the most fundamental rules of geometry and the basis for...
History Hit
Hadrians Wall: Sending letters and combating disease
How did the Romans proactively combat the spread of disease? How advanced were the Romans living on the frontier?<br/>
Hadrians Wall, Part 4
Hadrians Wall, Part 4
History Hit
Hadrians Wall: The end of the wall
What was the other purpose of the wall? In the end, what happened to it?<br/>
Hadrians Wall, Part 5
Hadrians Wall, Part 5
History Hit
Hadrians Wall: Modern day comforts
What was life like in the fort? What was the process like to take a bath?<br/>
Hadrians Wall, Part 3
Hadrians Wall, Part 3
History Hit
Hadrians Wall: The walls characteristics
What were the characteristics of the wall? What else was created along the wall? How was the wall patrolled?<br/>
Hadrians Wall, Part 2
Hadrians Wall, Part 2
History Hit
Hadrians Wall: The birth of the wall
What was the cause of the wall to be built? Why is the wall special to the Scottish?<br/>
Hadrians Wall, Part 1
Hadrians Wall, Part 1