[sanddrag]

Atmospheric pressure really is enormous. It can shoot a ping pong ball out of a depresurized tube at nearly 200 mph. If you place a paint stick nearly half hanging off the edge of a table, and place a full sheet of newspaper (fully opened) over the half sitting on the table, then you quickly "karate chop" the stick, it will break in two. Incredible. (it does take a few tries to get it but it is the force of atmospheric pressure that allows it to break)

I find it incredible that we can land on a planet many millions of miles away.

I find it incredible how we have full maps of the moon when only very few people have been there.

I find it incredible that we can receive signals from a spacecraft that is something like 7 billion miles away.

It is incredible how some insects can walk on water due to surface tension.

It is incredible how canoes can be made from concrete.

It is mystifying how rivers flow one direction on one side of the great divide and the other direction on the other side.

It is amazing how we sent people into outer space and back with computers probably less powerful than today's cell phones.