%20%20--%3E%0A%3Csvg%20version%3D%221.1%22%20id%3D%22Layer_1%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20xmlns%3Axlink%3D%22http%3A%2F%2Fwww.w3.org%2F1999%2Fxlink%22%20x%3D%220px%22%20y%3D%220px%22%0A%09%20viewBox%3D%220%200%20684.6%2068.1%22%20style%3D%22enable-background%3Anew%200%200%20684.6%2068.1%3B%22%20xml%3Aspace%3D%22preserve%22%3E%0A%3Cg%3E%0A%09%3Cpath%20d%3D%22M444.1%2C29.3h-17.4v14.5h17.4V29.3z%20M36.4%2C68.1l29.3-50.8V0H50.4L32.9%2C36.8L15.5%2C0H0v68.1h16.7V45.8l12.4%2C22.3H36.4z%0A%09%09%20M49.1%2C68.1h16.6V23.4L49.1%2C52.1V68.1z%20M76.6%2C68.1h45V53.8H93.3V41.6h21V27.1h-21V14.8h28.3V0.1h-45V68.1z%20M175.6%2C68.1h17.3v-68%0A%09%09h-16.5v40.3L150%2C0.1h-17.6v68h16.7V27.7L175.6%2C68.1z%20M235.8%2C14.8h15.4V0.1h-47.4v14.7H219v53.2h16.8V14.8z%20M290.3%2C45.9h-17.1%0A%09%09l7.5-15.6h2L290.3%2C45.9z%20M298.7%2C68.1h18l-32.2-68h-5.7l-32%2C68h18l3.3-7.1h27.1L298.7%2C68.1z%20M325.2%2C68.1h46.2V53.8h-29.6V0.1h-16.7%0A%09%09V68.1z%20M423.7%2C14.8h27.2V0.1H407v68h16.7V14.8z%20M462%2C68.1h46.2V53.8h-29.6V0.1H462V68.1z%20M564.8%2C34.1c0%2C10.7-7.2%2C19.2-18.5%2C19.2%0A%09%09c-11.4%2C0-18.5-8.5-18.5-19.2s7.1-19.2%2C18.5-19.2C557.6%2C14.9%2C564.8%2C23.4%2C564.8%2C34.1%20M580.6%2C34.1c0-19-14.2-34-34.3-34%0A%09%09c-20.2%2C0-34.3%2C15-34.3%2C34c0%2C19%2C14.1%2C34%2C34.3%2C34C566.4%2C68.1%2C580.6%2C53.1%2C580.6%2C34.1%20M604.8%2C20.5c0-4.1%2C3.3-6.2%2C6.7-6.2%0A%09%09c4.4%2C0%2C6.6%2C3%2C6.6%2C6.6h14.7C631.8%2C9.1%2C625.1%2C0.1%2C611%2C0.1c-12%2C0-21.7%2C9.3-21.7%2C20.6c0%2C10.9%2C5.9%2C15.9%2C16.7%2C19.8%0A%09%09c5.2%2C1.8%2C11.5%2C3.2%2C11.5%2C8c0%2C3.3-2.4%2C5.5-6.4%2C5.5c-3.6%2C0-6.6-3-6.6-6.7h-15.2c0%2C11.5%2C7.9%2C20.8%2C21.8%2C20.8c12%2C0%2C21.6-9.3%2C21.6-20.6%0A%09%09c0-10-5.3-16.4-16.7-19.8C610.6%2C26.1%2C604.8%2C25.3%2C604.8%2C20.5%20M670%2C20.9h14.7C683.8%2C9.1%2C677.1%2C0.1%2C663%2C0.1c-12%2C0-21.7%2C9.3-21.7%2C20.6%0A%09%09c0%2C10.9%2C5.9%2C15.9%2C16.7%2C19.8c5.2%2C1.8%2C11.5%2C3.2%2C11.5%2C8c0%2C3.3-2.4%2C5.5-6.4%2C5.5c-3.6%2C0-6.6-3-6.6-6.7h-15.2c0%2C11.5%2C7.9%2C20.8%2C21.8%2C20.8%0A%09%09c12%2C0%2C21.6-9.3%2C21.6-20.6c0-10-5.3-16.4-16.7-19.8c-5.4-1.6-11.3-2.4-11.3-7.2c0-4.1%2C3.3-6.2%2C6.7-6.2C667.7%2C14.4%2C670%2C17.3%2C670%2C20.9%0A%09%09%22%2F%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E%0A)
Why America Still Hasn’t Switched From Fahrenheit to Celsius
The U.S. had its chance to convert in the 1970s.
MATH
Watch How Computers Perform Optical Character Recognition
Turning pictures of words into digital words is tricky business.
Can You Solve This Fish Riddle?
Your cargo of rare fish was washed overboard. Can you figure out how many tanks you need to retrieve?
Mathematician Calculates Rotational Speed of Fidget Spinner in Fidgets Per Second
The tips move at more than 35 mph...but the trick is how you measure something so fidgety.
Try Solving This Riddle From a High School Math Competition
Can you figure out when Cheryl's birthday is?
5 Math-Based Home Hacks That Will Make Your Life Easier
Many problems routinely encountered around the house benefit from mathematical methods and insights.
This First-Grade Math Problem Is Stumping the Internet
This puzzle will make you glad to be out of elementary school.
Can You Solve the Pirate Riddle?
These logical pirates will divide their booty based on a "yarr"/nay vote.
What Was the Flaw in the Enigma Machine?
Alan Turing broke the Enigma code. What was broken in the Enigma system itself?
Hidden Figures Is Coming to Classrooms
The real-life story behind the hit movie doesn't end once the credits roll; for educators, there's now a free curriculum to use in the classroom that shines a light on the pioneering African-American women of NASA's space program.
Can You Solve the Virus Riddle?
It's just the fate of humanity. No pressure.
How the Ancient Greeks Did Math With Letters, Not Numbers
They were incredibly talented mathematicians—but they rarely used numbers in their math.
Fifth Grader Contacts the Police for Help—With Her Math Homework
While the officers' hearts were in the right place, their numbers weren't.
How Many Ways Can You Sort a Deck of Cards?
More ways than there are atoms on Earth. But why?
Can You Solve the Frog Riddle?
You have to lick a frog in order to survive. But WHICH frog?
Everyone on Earth Could Live in a Single Building—In Theory
It would need to be 4400 feet tall, though.
How Many Combinations Are Possible Using 6 LEGO Bricks?
Running the computer program to calculate it took a week.
Can You Solve the Passcode Riddle?
You need to figure out three numbers based on a handful of clues. If you fail, you'll be eaten by mutant salamanders.
Jumping Around Can Help Kids Learn Math
A Danish study found that integrating physical activity into math lessons boosted kids’ test scores.