Right now, somewhere out there,
an educator is delivering a mind-altering lesson to their class.
I want to engage your brains in this.
Chris Anderson: I tried to get my head around how vast our Earth is.
Logan Smalley: The lesson only reaches the students in that room.
What would happen if we captured it?
It's a toothed wheel.
LS: What if pro animators and visualization artists
could bring that lesson to life?
CA: It's a common object that literally fits one million Earths.
It's got a bunch of notches and a bunch of teeth.
This was Fizeau's solution --
LS: When that lesson lands, curiosity is ignited.
CA: It seems impossibly big.
AS: Something interesting happens.
CA: In the great scheme of things, it's a pinprick.
AS: A door closes on the light beam that's coming back to his eye.
LS: Then that group of students is one thought closer
to being what every teacher hopes their students will become:
a lifelong learner.
AS: Based on the distance between the two stations --
CA: The quest for knowledge and understanding never gets dull.
AS: He calculates the speed of light to within two percent of its actual value.
CA: The more you know, the more amazing the world seems.
That's the central mission of TED-Ed:
to capture and to amplify
the voice of the world's greatest teachers.
He does this in 1849.
CA: It's the crazy possibilities, the unanswered questions,
that pull us forward.
So stay curious.
[TED-Ed: Lessons Worth Sharing]