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Vehicles and Transportation

An Out-of-this-World Workout
April 18th, 2021

Have you ever wondered how long it would take to walk around the Earth? What about the Moon? Go out of this world to answer a kid’s question in this Bedtime Math story!

You’ll Never Believe What Money Can Buy
April 13th, 2021

What’s the wackiest thing you can think of to buy? Read on to find out some pretty crazy things you can bid on, and see how they add up!

Bus-ting Out
March 24th, 2021

It’s amazing what you can do with paint. People who paint pictures that look really real can create a whole new kind of magic. These crazy buses are a great example of that. In the top picture, the back of a bus is painted to look like it has a battery compartment. In the second, someone painted around the wheels to make them look like two eyes. And in the third, the stretchy part of the bus looks like the bendy part of a toothbrush. Buses are a good 40-50 feet long, though, so these eyes and batteries and brushes are way, way bigger than real ones. How much bigger are they?

Mush!
March 5th, 2021

The Iditarod Trail Sled Dog Race is the most famous dog-sledding event, and is often called “The Last Great Race.” Just why is it called this? Read on to run through the numbers in this race, and find out what makes it so great!

When Toilets Fly
February 27th, 2021

You’ve heard of birds and planes flying. But what about toilets? One group decided to create a portapotty rocket and make it fly! Read on to get carried away with the numbers in this rocketing restroom.

Cake on Wheels
February 22nd, 2021

When people think something is easy, they call it a “piece of cake.” We’re not sure making this car was easy, but it is a BIG piece of cake! This is the new fastest and longest-traveling edible vehicle on Earth. There are some non-cake parts in it: a metal frame like a bike, and rubber […]

In Case You Got No Snow…
February 19th, 2021

When we hear a giant snowstorm is coming, we get really excited to play in the snow. But sometimes the storm decides to go another way and we don’t get any snow. Well, one grandpa decided to fix that problem for his granddaughter. Read on to see how he did this – and do the math in traveling snow!

Answer Your Car’s Questions
January 30th, 2021

Did you ever wonder what cars would say if they could talk? Chances are they’d ask a lot of questions that you’d be able to answer by doing some math. So read on to see what your car might say…and figure out how you’d answer it!

More Llama Drama
January 11th, 2021

Wait, is that a llama running down the street?! That’s what happened in Newburyport, MA last Wednesday. Llamas are big, shaggy animals that normally live in South America. There are only about 40,000 of them in the US. But some people keep them as giant pets, and sometimes llamas break free. The one in this […]

Giving the Green Light
January 9th, 2021

When we drive on the road, we can’t all just go every which way. We have to stay on one side, and wait our turn where roads cross. Stop signs help, but really busy crossings need traffic lights. The traffic light, that cute red, yellow and green trio, was patented (made official as an invention) on this day in 1923. Actually, the very first electric traffic light was invented in 1912 by Lester Wire, a policeman in Utah fed up with all the traffic; you can imagine, after hundreds of years of slow horse-drawn carriages, what it was like to have this speedy, loud thing called a car suddenly show up. So Wire borrowed the idea of railroad signals to make a traffic light, which had just red and green for stop and go. Then in 1920, Detroit cop William Potts built one with 3 colors (red, orange and green). As you see here, people have tried other designs, like this funny dial one from Australia, but the three-color light is what keeps most of us from crashing into each other today.

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