This episode has no summary.

This episode has no summary.

This episode has no summary.

This episode has no summary.

This episode has no summary.

This episode has no summary.

Rain shouldn't happen, according to basic physics.

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This episode has no summary.

This episode has no summary.

This episode has no summary.

Pianos can't be perfectly tuned - it's a mathematical fact!

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Do you want to go to space? Do you want to learn about bending computers and boxes that make clothes smell better and sky boats with turning wings?

If the earth is spinning to the east at 1000 miles per hour... why can't we fly west more easily?

This episode has no summary.

This episode has no summary.