The science behind hot air balloon flight comes down to air density and buoyancy. When the envelope is laid out on its side, cold air is first blown in to give it shape, because the fabric is too limp to stand on its own. Once the pilot heats the air with the propane burner, the air inside the envelope becomes less dense than the cooler air outside. This density difference creates lift, allowing the balloon to rise. The envelope itself is made of lightweight nylon, while the area near the burner is reinforced with Nomex, a fire-resistant material, which protects the balloon from the heat of the flame. In essence, the balloon floats because hot air rises, and careful material choices keep it safe while carrying people hundreds of feet in the air.
#science #learning #facts #hotairballoon
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I’ve never been in a hot air balloon, or a helicopter, or a rocketship or a supersonic jet, biplane, seaplane or even a flying boat. I saw a flying fish one time that was pretty cool, and I seen lots of swimming birds like swans ducks and seagulls. And some birds that can’t even swim or fly,, which would suck.
Yeah watching this for the first time was awesome. The landing is the most intense part.
I thought fire fighter suits were made of kevlar? Or is it layered with both? I worn them in work experience they are heavy and its deffo not a very soft fabric.