Useless facts of the day...

Originally posted by mike ellis how do gps satellites scan the earth for nukes going off if they dont have cameras etc. i thought they were just things that pinged at our gps sets on the ground so the sets could do some trig and stuff and find out where it is

Point 1.  Who says they don't have other stuff on them, they are after all owned by the US DOD.

Point 2.  They are a ranged based system so don't really use trig to calculate postion.

I hope this information is sufficiently useless.

• The original game of "Monopoly" was circular..
• The sentence "the quick brown fox jumps over the lazy dog" uses every letter in the English language.
• The word racecar and kayak are the same whether they are read left to right or right to left.
• TYPEWRITER, is the longest word that can be made using the letters on only one row of the keyboard.
• Hippopotomonstrosesquippedaliophobia is the fear of long words.
• A snail can sleep for 3 years.
• The average human eats 8 spiders in their lifetime at night.