Wednesday, June 12, 2013

Big Castle

This morning, my five-year-old son and I were discussing the large castle we would be living in some day.


Emmett: I want it to be really big. I want it to reach the clouds.

Me: You're going to need a lot of stairs to get up there. How many stairs will you need? (We did not discuss the likely necessity of an elevator.)

Emmett: 100!

Me: I'm not sure that's enough.

Emmett: No. A billion!

Me: Hmm.

Assuming that each stair is 7.5 inches tall, the height of such a tower would be 118,371 miles, which is almost half the distance to the moon. I think we need to scale it back a bit.

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