Typically, with any piece of technology, you pump one unit of energy in and you get about one out. That’s just the first law of thermodynamics: energy has to be conserved. But there’s a piece of technology called a heat pump, where for...

Your brain does its best to inform you about the world around you, but sometimes it gets tricked. Enjoy eight optical illusions to test your brain’s sensory input.

What happens if you eat too many raw eggs? What are those little rods sticking out of airplane wings? All this, and more as Nicole Sweeney, host of Crash Course Sociology, faces off against Hank in an episode of the SciShow Quiz Show.

If you've ever put your feet up on a warm summer's day and played "spot the shape in the cloud," you might've seen a kangaroo, a guy preparing to facepalm, maybe a mushroom... On second thought, hopefully not that last one.

You know how you somehow end up getting smoke in your eyes wherever you stand around a bonfire? Well, it turns out that’s not a curse! It’s much more easily explained with physics. "The more protractors, the better the party." ~Hank Green

Hot Air Balloons! They're those big, beautiful balloons people can float up to the sky in-- but how do they get up there?!

What's the real cause of climate change? Is global warming real? Are humans causing climate change? What is climate change? We do a deep dive into the data to find answers. The world today is 0.85 degrees (C)...

Flight is a dangerous business...

Did you know that some of the most powerful cleaning tools aren't even in your cleaning cabinet? On this episode, we're talking about the magical (and unexpected) cleaning powers of a traditional hair dryer. From dust bunnies to stubborn...

So you want to make crispy air-fried chicken, but you can't stop turning it into inedible jerky? There's a reason why. Air frying might be easy, but it's not foolproof.

Lifty and Skoop have gotten together to play with their quadrocopter, but Skoop's forgotten to charge the batteries. What should they do? Lea thinks they should build a hot air balloon. It doesn't need batteries or electricity to fly....

Tom Thomas accidently bounces a ball right into a ceiling lamp and breaks it. Papus flies up in a hot air balloon to repair it.

Hot air balloons rely on heat alone to keep them in the sky. How does this work? Physics - Energy And Radioactivity - Learning Points. Hot air rises in cool air because it is less dense. The hot air within a hot air balloon creates the...

How Richard Branson's team created the world's largest hot air balloon in order to undertake a daring crossing of the Pacific Ocean. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s...

Find out how hot air balloons work.
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Material processes - Solids, liquids and


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Learning Points



Air is made up of different gases.

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Early in 1997 a group of engineers were putting the finishing touches to unique craft designed by Swedish aeronautical engineer Per Lindstand. The team funded by entrepreneur and adventurer Richard Branson were in Morocco preparing for...

Hot air ballooning, with a history spanning over 200 years, has evolved from paper balloons to modern nylon or dacron envelopes powered by propane gas burners. Pilots soar through the skies, relying on the wind for navigation and...

Join us as we delve into the electrifying world of storms, uncovering how lightning forms and the best ways to stay safe during a storm. Discover the science behind storm clouds and lightning, witness demonstrations of lightning rods...

Previously we discussed the types of heat sinks, fans, and liquid cooling that are used to lower component and system temperatures. Now we will look at keeping your system cool through even the most difficult of tasks.
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Indian textile magnate Vijay Pat Singh Hania is set to break the high altitude world record in a hot air balloon, aiming to reach 21,300 meters with a purpose-built pressurized capsule and innovative jet fuel-powered burners. With a team...

Hot air balloons work by utilizing heated air inside an envelope to make the balloon float, as demonstrated in the first manned flight in 1783. The envelope containing the hot air is lighter than the surrounding cold air, allowing the...

This video is explaining how hot air balloon works for kids.

This video is answering the question of how are heat waves caused.

How are data centers cooled? find out in this video on how data centres are cooled. covering CRAC units, cold aisle containment, hot aisle containment, suspended floor.



Head over to the Danfoss Data Center Hub to see the...