Hydrogen gas is the least dense substance in the world, at 0.08988g/cc.  Hydrogen solid is the most dense substance in the world, at 70.6g/cc.

Random Facts

• 'Stewardesses' is the longest word that is typed with only the left hand.
  Word and Language Facts
• There is a city called Rome on every continent.
  Misc Facts
• Figlet, an ASCII font converter program, stands for Frank, Ian and Glenn's LETters.
  Science and Technology Facts
• Nutmeg is extremely poisonous if injected intravenously.
  Misc Facts
• Every time you lick a stamp, you're consuming 1/10 of a calorie.
  Human Facts
• The present population of 5 billion plus people of the world is predicted to become 15 billion by 2080.
  Misc Facts
• Hershey's Kisses are called that because the machine that makes them looks like it's kissing the conveyor belt.
  Misc Facts
• 111,111,111 x 111,111,111 = 12,345,678,987,654,321
  Misc Facts