While coasting down Gariwang mountain this year, downhill skiers will reach speeds your car can’t even legally achieve. It’s a breathtaking example of Newton’s second law of motion: A force (pushing off) on an object (the skier) produces acceleration.
More Science Matters
Ah yes, Valentine’s Day...when love is in the air. Well, love is not the only thing in the air though. Scientists have been studying the amount of heat trapping gases in the air and asking how this will impact the production of a very special Valentine’s Day item, chocolate!
Great skaters like Adam Rippon and Karen Chen make their routines look easy. Their movements are so flawless and steady that even the most daring of leaps and spirals look like something they could do in their sleep.
We now have seven and a half billion people on Earth and rising! A little over half of those folks live in urban areas where it does not get bigger than being in a mega city! As the number of people grows across the globe, so will the number of mega cities on Earth. Let’s explore this topic by asking today’s big question: How many mega cities are on Earth now? Listen to this Question Your World radio report produced by the Science Museum of Virginia to learn more.