mag-lev technology, Tag

Space travel is a costly and inefficient process. Not only does it take a large amount of fuel to send the lightest payload into orbit (the Space Shuttle used over one million pounds of solid propellant to power its rocket...

For millenia, the wheel has revolutionized life on planet Earth – it powered human development, was literally a cog in the Industrial Revolution, and let us travel really, really fast from A to B...