Answers to Questions Kids Ask! - Where "Why?" Turns to "Wow!"
Born on this day
September 19, 20111931 - Brook Benton
1934 - Brian Epstein
1928 - Pete Murray
1933 - David McCallum
1940 - Zandra Rhodes
1940 - Bill Medley
1945 - Kate Adie
1946 - Michael Elphick
1948 - Jeremy Irons
1949 - Twiggy
1963 - David Seaman
The basic principle of ballooning is simple: Warm air rises. If warm air is contained in a lightweight bag it will rise until the temperature of the air inside the bag matches the air outside. As the air cools, the bag starts to descend. These days touring balloons carry propane tanks (burners) in the basket or gondola to control heating the air. They are equipped with an instrument panel with a compass, altimeter, fuel gauge, and more. This makes modern balloon rides safe and comfortable, although the burner does get warm and rather loud at times.
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What is Air made out of?
Air is primarily made up of two elements, nitrogen and oxygen. Nitrogen makes up 78.05% of air and oxygen another 20.95%. The remaining less than 1% is primarily argon, but…
Why Do I Burp?
A burp – sometimes called a belch – is nothing but gas. When you eat or drink, you don’t just swallow food or liquid. You also swallow air at the…
Does warm milk really make you sleepy and if so, why?
There are a few reasons some people think warm milk helps you fall asleep. First off, milk contains tryptophan, the same ingredient that makes everyone sleepy after Thanksgiving dinner. In…
Why do you get goosebumps on your body but not on your face?
Goosebumps are caused by smooth muscle that pulls on your hair follicles, causing indentation. Then you get that characteristic raised-and-lowered looking skin. The pulling makes the hairs stand up. We…
Why in some places, like the desert, is it very hot in the day and very cold at night?
This is because rocks (including sand) have low heat capacities (the amount of energy needed to raise their temperature). This means that they heat up easily during the day, and…