This morning there was a news story in the Wall Street Journal on the serious depletion of US Helium reserve. While congress does their job let us take a moment to analyze the impact of a story like this on the Pixar movie UP. If you have not seen it here is a good review.
Breaking down the numbers:
Constant: Lifting force of helium.
1 Gram per liter of Helium
Estimates: Average weight of a US home. Continue reading