Balloons are often filled with helium, which has a lifting force of one gram per meter. It's possible to assemble enough balloons to lift yourself from the ground -- but how many balloons does it take? Tune into this HowStuffWorks podcast to learn more.
Yesterday
What's the History of Remote Controls?
Today, we use remote controls for everything from televisions to car doors to Mars rovers. Learn about the history and technologies behind them (including radio-frequency, ultrasonic, and infrared remotes) in this episode of BrainStuff, based on these articles: https://science.ho ... Show More
11m 41s
Aug 2021
That Time People Rioted Over a Hot Air Balloon
<p>These days hot air balloons are often thought of as anachronistic novelties -- but in the early days of aeronautics, they were considered fascinating, dangerous and deadly. In today's episode, the guys explore a strange story about a genuine riot during the dawn of ballooning, ... Show More
34 m
Feb 2023
Up And Away In My Beautiful Spy Balloon
In early February, 2023, the US shot down a Chinese balloon. The US says the balloon was gathering intelligence while the Chinese claimed it was a weather balloon. We look at the history of spy balloons and how they've evolved over time, as well as the dilemma these balloons put ... Show More
49m 25s