December 12, 2017
While a stove or oven produces heat, a fridge can’t actually produce something called “cold.” So, how does a refrigerator manage to keep all your food cool?
We have to engineer it. We must design a system that can carefully remove heat and put it somewhere else.
See the complete answer on the
Dr. Universe website, featuring Jake Leachman, from Washington State University’s college of engineering.
December 6, 2017
There are a lot of different grasshoppers living on our planet. In fact, scientists have discovered more than 11,000 species. » More …
November 22, 2017
When the northern lights come out, beautiful, colorful patterns stretch across the night sky. But they begin with a star that is millions of miles away: our sun.
See the full answer at the
Dr. Universe website.
November 16, 2017
If you were to travel around the world, the word “science” might look or sound very different. In Spanish, it’s ciencia. In Japanese, 理科. In German, wissenschaft! And in French…
» More …
November 1, 2017
Whether it comes from trees or is made by scientists in a lab, rubber can really bounce. Well, a rubber band or rubber on your shoes might not be very bouncy. But a super bouncy rubber ball? It can really catch some air. » More …
August 23, 2017
My friend Tim Miller is a researcher at Washington State University working to help stop weeds from making life difficult for plants we would rather have. » More …
August 17, 2017
You know, most cats like to stay a comfortable distance from water. But when I got your science question about our big ocean, I was ready to jump right in. » More …
August 3, 2017
It just so happens the Great American Eclipse is coming up on Aug. 21. This solar eclipse will be the only one visible from across the lower 48 states in nearly a hundred years. » More …
July 18, 2017
It sure sounds like a nice idea. Print a bunch of money and everyone gets rich. We could buy anything we wanted. » More …
July 3, 2017
Astronauts eat all kinds of different foods up in space. The food is often similar to what we have here on Earth. But in space, there’s very little gravity and refrigeration. See the full answer featuring my friend Norman Lewis, a WSU plant scientist, at the Dr. Universe website.