‘Vehicles and Transportation’

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Roller Coaster through Your Kitchen

December 14, 2014 4:00 pm

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How would you like to run a roller coaster right through your home? It could start at any high spot, run through bedrooms and the kitchen, and pop out the front door. Someone actually built a coaster like this as a way to sell a house. Read on to see how one Dutch realtor crunched the numbers to create the most fun way to tour a house in style.

What’s Flying over Your Head

December 10, 2014 4:00 pm

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Satellites are pieces of equipment that fly high up in space around Earth. They send us our phone calls and pictures that show up on the computer; they show us where we are on the map (GPS); and they can study the stars and other stuff out in space. You’d be surprised just how many are flying miles above our heads, and how different they are from each other.

The Shape of Paddle Splash

December 8, 2014 4:00 pm

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Have you ever rowed a boat using oars? The more you paddle the same way over and over, and the more closely you match the timing of other rowers on your boat, the faster the boat goes. A photographer showed this in beautiful pictures using LED lights. Read more to do the math on this great example of math in action!

The No-Longer-Impossible Bike

December 4, 2014 4:00 pm

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A bicycle gives you a smart, easy way to go places. It weighs a lot less than a car — can you imagine carrying an SUV on your shoulder? But a bike is still pretty heavy and crazy-shaped to pick up with your hands. So a team of guys built a bike that can fold up really, really small and fit in your backpack.

Give That Building a Shove

November 29, 2014 4:00 pm

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When a building isn’t the right size for what we need, we have some choices. We can add onto it, we can knock it down and build a new one, or we can just move to another building. Or you can just move the whole building, as one company did back in 1930. You can bet that required a lot of planning and math!

Speed Stroller

November 25, 2014 4:00 pm

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You might not remember being pushed around in a stroller when you were 1 year old. But even so, you’re probably pretty sure the stroller didn’t have a gas-fueled engine driving it at the speed of a car. That didn’t stop one record-breaking dad from building the world’s fastest baby carriage.

Berries on the Run

November 22, 2014 4:00 pm

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When you buy a banana, zucchini or tomato at the grocery store, it just pops from the shelf into your shopping bag. But that fruit or veggie may have already traveled thousands of miles to reach you! Two people from National Geographic decided to track the journey of a box of strawberries. It might shock you to find out how well-traveled your fruits are.

Party Time in Space

November 20, 2014 4:00 pm

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Riding a rocket must be incredibly exciting. But it must be even better to zoom on a rocket up to the International Space Station and stay there. Sailing 268 feet above our heads, the ISS celebrates its 15th birthday today. So if you look up in the sky tonight and see it floating by, make sure to give it a “Happy birthday” shout out!

How to Ride a Comet

November 14, 2014 4:00 pm

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Comets are one of the most exciting types of space objects: a chunk of rock and ice speeding through space and leaving a long, bright tail of ice and dust behind it. What’s even more exciting is landing a spacecraft on a comet traveling 135,000 miles per hour, which happened this week!

Beat the Clock, Win a Truck

November 12, 2014 4:00 pm

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Basketball isn’t just about chucking the ball so it lands in the net. There’s a lot of excitement in how you throw the ball, and how far. And this was certainly true when Drake University student Alex Tillinghast had the chance to win a truck by making 4 different shots in 30 seconds. Did he make it? Read on to find out and do the math!