Speaker 1: All clouds are not created equal, So back up your photos,
Speaker 1: documents and music with Mosey by E m C, the
Speaker 1: most trusted name in cloud backup, get it today at
Speaker 1: Mosey dot com. That's m o z y dot com
Speaker 1: and save ten with promo code brain Stuff. Welcome to
Speaker 1: brain Stuff from how Stuff works dot com where smart happens. Hi,
Speaker 1: I'm Marshall Brain with today's question, what a balloon filled
Speaker 1: with vacuum instead of helium float? At sea level? Air
Speaker 1: weighs about one point to five grams per leader. A
Speaker 1: leader of helium, on the other hand, weighs about point
Speaker 1: one eight grams. If you weigh a one leader bottle
Speaker 1: filled with air and then weigh the same bottle filled
Speaker 1: with helium, it will weigh about one gram less. If
Speaker 1: the bottle itself weighed less than a gram, you couldn't
Speaker 1: weigh it at all because it would float. You would
Speaker 1: have to turn the scale upside down and put it
Speaker 1: above the floating bottle to check its negative weight. Generally,
Speaker 1: a balloon has to be several leaders in size before
Speaker 1: that one gram per lead or weight difference of helium
Speaker 1: versus air is enough to overcome the way to the
Speaker 1: balloon itself and float. If you could somehow fill a
Speaker 1: one leader bottle with a vacuum, it would float even better.
Speaker 1: A perfect vacuum ways zero grams, So a leader of
Speaker 1: perfect vacuum ways zero grams, and that's point one eight
Speaker 1: grams less than a leader of helium. The problem, of course,
Speaker 1: is that building a lightweight container that can hold a
Speaker 1: vacuum is not nearly as easy as building a container
Speaker 1: that can hold helium. The phrase nature of whores of
Speaker 1: vacuum sums it up nicely. If you could figure out
Speaker 1: a way to do it, however, you could be set
Speaker 1: your vacuum balloon would float even better than a helium balloon.
Speaker 1: Now that you don't need to have a perfect vacuum
Speaker 1: for this to work, any air that you take out
Speaker 1: of the container helps a vacuum balloon to float. For
Speaker 1: more on this and thousands of other topics, visit how
Speaker 1: stuff works dot com. Your photos, music and documents are irreplaceable.
Speaker 1: Protect them with Mosey by e m C, the most
Speaker 1: trusted name and cloud backup. Back up your files today
Speaker 1: and save ten percent with promo code. Brain stuff at
Speaker 1: Mosey dot com m o z y dot com