Note: As we do for religious holidays, in honor of this month we’re providing a second extra math problem about Ramadan, for those who celebrate or would like to learn more about it. Click “Read More” to do the math. Enjoy!
It’s pretty easy to measure how tall you are: from the floor to the top of your head, no shoes allowed. But it’s a little more difficult to measure buildings: do you count up to the top floor? Or is it to the tippy top of the antenna? Click “Read More” to count your way to the top!
Getting gasoline for your car is pretty easy. But how does the gas get to that hose in the first place? Click “Read More” to find out and do the math behind gas!
Of all the clocks in the world, the most famous might be Big Ben. It’s also the biggest clock, as you can guess from the name, and rests inside one of the tallest clock towers. All of this adds up for some great math! Click “Read More” and take some time to do the math.
Dinosaurs aren’t alive today, which is a huge bummer. But we know a lot about them because we’ve found a lot of their bones. Sometimes those bones give us shocking surprises – like the bone in this photo, found a few weeks ago on a dig in Argentina. To size it up and do the math, click “Read More.”
When people snap a really awesome photo, they want to show it off to everyone, so they share millions photos a day on the Internet. But that couldn’t have happened back in 1826 when the first photo was taken. Click “Read More” to see how far the camera has come and how the photos really start to add up!
If you love celebrating your birthday, try living 111 years – lots of birthdays, lots of parties. Maybe that was the plan for Dr. Alexander Imich, who is now the world’s oldest living man. And with that many birthdays, the numbers really start to add up – click “Read More” to do the math!
Today is the 10th birthday of iTunes, the online store that lets you buy songs, movies, apps for your smartphone, videos…all kinds of stuff that you can enjoy on your phone or computer. Before iTunes, the only way we old-timers could buy songs was on something you could hold in your hand, like a CD, a tape cassette or a vinyl record. Or you could get songs electronically from various illegal websites, which was exciting but felt icky. So the idea that you could get onto your computer, buy any song you wanted (legally), and get it within seconds was mindblowing. iTunes opened with just 200,000 songs on it, all priced at 99 cents, and within just one week they had 1 million song downloads. As of today, iTunes has sold over 15 billion song downloads from a collection of 26 million different songs. Let’s just say, it takes far more than one person to listen to it all.
On this day in 1876, Alexander Graham Bell finally got his invention working: the telephone. It worked nothing like our phones today: the very first phones were sold in pairs, where each phone could call only that one other phone (you had to pick that other person carefully). Then came the “switchboard,” which let you call any other phone, but the “operator,” a phone company person in the middle of town, had to plug in wires to connect your call for you. Now we can call anyone anywhere on our own within seconds, and through the air. But that first phone, that first time talking to someone through a wire, must have looked like magic.
The last week of January often marks the coldest week of the year, at least for the northern half of our planet. We’ve been tilted away from the sun for weeks, we’ve had short days of sunlight, and in some places cloudy gray skies make matters worse. So it’s no surprise that many states have had their coldest temperature ever in late January or early February. When you see some of the records set over the decades, you might find that a bowl of ice cream at 3 degrees F could warm you up.