Archives: Blue Sky

How does a hot air balloon work?

Directionally you never know where a balloon is going to go because the wind controls it, I don’t. I can send a balloon higher or lower, but not steer it in specific directions. So before we send passengers up in a hot air balloon, we send up a small hydrogen balloon that tells us the wind speed and direction.

How do cows make milk?

The first time you milk cows they make what’s called colostrum. We often call it liquid gold because it has lots of fat and proteins.

How do planes fly?

Imagine this: Stick your hand out of the window of a car that travels at around 60 mph, and you will notice how lift is being produced as you twist your hand up and down. As the car accelerates, you will notice that no matter how you shape your hand, lift is always being produced.

What is the purpose of the appendix?

For decades, scientists and physicians have believed that the appendix really doesn’t have a function in human beings. It may have had a purpose in some living thing tens of thousands of years ago, but that purpose never persisted in humans.

What is the Kuiper belt?

The Kuiper belt, named after astronomer Gerard Kuiper, is a massive, icy region of our solar system that exists just beyond the planets. Actually shaped more like a donut than a flat belt, the Kuiper belt is best known as home of the dwarf planet Pluto.