Why do airplanes sometimes leave long white contrails behind?
On this edition of A Moment Of Science, we check out some of the atmosphere's many layers.
Have you ever been on an airplane and experienced turbulence?
The most famous tunnel is the thirty mile "Chunnel" between England and France. The Chunnel is actually two separate tunnels, connected by cross passages.
How do modern-day pilots navigate their way at 35,000 feet?
You’d expect a ride this bumpy if you were driving an off-road vehicle over rocky, uneven terrain, but a bump bump BUMP as you glide 30,000 feet above that terrain in a modern jet liner, might surprise you, not to mention scare the bajeebers out of you. After all, you never notice hard lumps and bumps as you breathe air. What makes an airplane go bump? Learn more on this Moment of Science.
Why do ears pop when traveling by plane? Find out on this Moment of Science.
The most famous tunnel is the thirty mile “Chunnel” between England and France. Thirty miles of air is a lot to push around, so engineers have come up with a clever solution. The Chunnel is actually two separate tunnels, connected by cross passages.
Also, earth’s core is a metal sphere 800 miles wide, but just pretend we’ve bored through it. What would be the result? For one thing, you could then travel to the other side of the world in under one hour.
All you need for this trick is a twenty-five-cent piece and a small postage stamp. Put the stamp on the desk and hold the quarter horizontally about half an inch above the stamp. Now blow hard down onto the quarter.Now blow hard down onto the quarter.