Did you ever wonder what occurs inside your body when something funny happens? What is this thing we have in our brains that makes us say “ha-ha” when someone slips on a banana? One way to find out is to watch the brain laugh. That’s what Dartmouth neuroscientist William Kelley did. He and his team […]
Learn about all the various positions of the uterus on this Moment of Science.
Air molecules are naturally elastic–they don’t stick together like water molecules, but rather bounce off each other in the open.
Any motion takes energy to perform. And little motions like rearranging things on your desk or stretching your back, if you do them all the time, start to add up.
It works kind of like a soccer net. When you kick the ball into the net, it absorbs the energy of the ball and eventually stops its forward motion.
During voyage of the Beagle, Charles Darwin was often overcome by seasickness and discovered that “nothing but lying in [his] hammock did any good.”This remedy–lying down with eyes shut–is one of the most effective for treating motion sickness.
Modern medicine, along with better living conditions and healthier diets, enables many people to live into their seventies and eighties. Deaths due to infectious diseases like smallpox and polio have declined, and formerly fatal conditions like diabetes and heart disease can be kept in check.
If you have good posture, your bones will carry you the way a skyscraper’s frame carries the weight of the building. If not, you may end up more like the leaning tower of Pisa. While there are many routes to bad posture, high heels are certainly one of the most popular.
In the animal kingdom, much like in the world of humans, there are many techniques that animals will use in order to attract mates. Parrots, for example, have glowing heads.
Learn about the love-relationship between salmon and riparian vegetation on this Moment of Science.
If you’ve ever been to the Air and Space Museum in Washington DC, perhaps you’ve sampled the kind of freeze-dried ice cream astronauts eat during space missions. A stiff, dry square, the freeze-dried version tastes just like ice cream, except that it isn’t cold, and has no moisture.
Truffles are a French culinary delicacy and a fungus that grows deep in the ground. Has it ever occurred to you how odd it is that we use pigs to find them?
Now and then you hear about radio frequencies being jammed. In this Moment of Science, we’ll discuss how this occurs.
Because these growths are pieces of uterine lining, they do what uterine lining normally does every month, the tissue grows and tries to be shed.
Toxins produced by the nasty streptococci bacteria are released at the site of infection and are absorbed into the infected person’s blood stream.
This is known as a genetic bottleneck, and it meant that the remaining cheetahs were forced to breed with their relatives.
Some babies are born with a full head of thick, colorful hair, while other babies are born with very thin, hard-to-see hair.
Varicose veins in the legs occur when the valves in a vein near the surface of the skin malfunction. Valves usually keep blood from flowing backwards in the vein once it’s been pumped towards the heart.
This means that the water pumping in and out of them also provides them with nutrients and enables them to eliminate waste products. If you’ve ever wished you were just a little bit taller, try measuring your height in the morning. It might make all the difference.
As you may already know, heart disease is one of the leading causes of death in people who are older than sixty-five. What’s more, there’s a growing body of evidence that emotional stress can contribute to cardiovascular disease.
For some people, the word "worm" means "money".
Did you know that frog venoms are becoming more and more prevalent in some of today's most vital medications? Find out more on this Moment of Science.
Many of us have heard that if you soak a tooth in soda for a few days it will begin to soften. Well, it isn’t true, but it doesn’t mean you can drink all the soda you want without it causing tooth problems. While soda contains citric and phosphoric acids, so do plenty of other foods and beverages.
Before modern antibiotics, doctors sometimes relied on an unusual, but effective therapy for keeping wounds from getting infected. Yep, you guessed it: maggots.
For many scientists, a species’ success is measured by sheer numbers. In that case, the most successful species known to man is a type of bacterium known as S-A-R-11, or SAR-11 for short. Scientists estimate that there are two-hundred and forty times a billion billion billion SAR11 cells floating around in the oceans. Now that […]
On this Moment of Science, we discuss the difference between brain death and a coma.
In the case of the African stalk-eyed fly, where the males are like hammer head sharks with their eyes extended on long stalks, sometimes measuring one and half times the length of their bodies, long stalks are an indicator of better genes.
Surprisingly, snow makes good insulation. In physics, an insulator is a material that does not conduct heat very well, like an oven mitt.
There is a war going on between a certain tropical butterfly, Heliconius sara, and its only food source, the passion vine. This war involves chemical warfare. More precisely, the plant arms itself with cyanide bombs that are rather useful in getting rid of most insect pests.