When you look at the sun, you’re actually looking at a star. The teeny prickpoints of light you see at night are stars, too, just really, really far away — and many of them have planets like Earth spinning around them. This week, astronomers found the oldest star we’ve ever seen that has planets. Read on to see how the planetary numbers add up – and if we have new alien friends 690 trillion miles away!
What happens when you toss an ice cube in your glass of juice or water? Does it sink or float? It floats, because an ice cube weighs a little less than the same chunk of melted water. Out in the ocean very far north and south it gets even more exciting, because giant chunks of ice break off from the land and float in the waves. Read on to see why one of these giant chunks of ice is especially awesome – and do the “cool” math!
Have you ever driven by a building with a big black rectangle strapped to it to face the sun? That’s a solar panel, and it turns sunlight into electricity. A panel can run only a few light bulbs, but someone has built a whole airplane that can run its engines on nothing but sunlight. Read on to do the math on this amazing airplane.
When we saw the photo of these amazing chocolates, the first thing we asked was, “Would anyone want to eat them?” How can you eat something that looks so cool? Read on to find out more about and do the math on these creative, chocolate cubes!
Have you ever looked at an apple or banana from the store and noticed a sticker with a 4-digit number? Maybe a 4138 on a Granny Smith, or a 4432 on a pineapple? That sticker and number aren’t just there for fun – they have a purpose. Read on to see how the numbers are used as a code for the fruit – and enjoy some bite-sized math!
Have you ever watched an airplane in the sky and wondered how many people are in there, and where they’re going? Now multiply that by all the planes in the air at any time, and you get a lot of people airborne at the same time. Read on to see how one website showed all the planes flying across the Atlantic Ocean throughout the day – and see how quickly the numbers add up!
We all know some crayon colors are more popular than others. The blue and red get used over and over until they become short little stubs, while the green-yellow might not have much work to do. But what can you do with all the leftover pieces that are too short to hold? Read on to find out, and get creative with the crayon math!
How would you feel if you went to bed at night ready to conk out, and found someone already sleeping in your spot? Well, that’s what happened to a small dog when the cat of the house decided to take over the doggie bed. Read on to do the math on how much work this pooch did to try to get the clever cat out of the bed.
Imagine a place that is always colder than your freezer, or than the coldest day you’ve probably ever felt yourself. For whatever reason, some people like to live in places like this. The coldest town on Earth is Oymyakon, Russia, home to 500 people. Read on to find out just how cold it gets there, and do the math on these freezing temperatures!
Has anyone actually tried to dig to China? We know our planet Earth is a ball, so if you’re on one side and just dig straight through, you’d end up on the other side, right? Well, in 1970 a drill in Kola, Russia started drilling straight down into the ground. Read on to see how far down they got and dig deep into hole math!