Scientist claim that if we could capture lighting energy we could power a city for a year, the problem is that there is not always lighting and it doesn't strike at the same place all the time, except at Lake Maracaibo in Venezuela.
Idea: Fedex has a hub in Memphis where 100s of planes land a night and travel to their destination with packages at 500 miles a hour. Imagine this hub and airplanes being replaced by these tubes that travel at 4,000 miles an hour. The express package delivery market. Reduce air travel traffic and CO2 emissions.