For every extra kilogram carried on a space flight, 530 kg of excess fuel are needed at lift-off.
Soldiers do not march in step when going across bridges because they could set up a vibration which could be sufficient to knock the bridge down.
Due to earth's gravity it is impossible for mountains to be higher than 15,000 meters.
When a person dies, hearing is the last sense to go. The first sense lost is sight. How did they figure that out.("If you can hear me, wiggle your nose .... oh, I forgot")
Airports at higher altitudes require a longer airstrip due to lower air density.
Nine out of every 10 living things live in the ocean. (Ok, guys, start counting, we'll do the living things first, then get in to our wetsuits)
Peanut oil is used for cooking in submarines because it doesn't smoke unless it's heated above 450F.
If you stop getting thirsty, you need to drink more water. When a human body is dehydrated, its thirst mechanism shuts off. (Hey bartender, I;m not thirsty, better give me another one)
