Humans
Experiment: Discover the science behind afterimages
By observing afterimages, you can learn how different cone cells in the retina respond to various colors.
Humans
More Stories in Humans
- Health & Medicine
A protein building block may help fight viruses and cancer
As a food supplement, arginine might one day help cut tumor formation and the proliferation of viruses in the body, mouse data suggest.
- Brain
The human brain may owe a lot of its size to our love of sweets
Meats were important, too. But throughout human evolution, fruits may have fueled much of the brain growth in our primate cousins and early ancestors.
- Animals
Monkeys might share our instincts for math
To show how monkeys think about math and shapes, scientists had them play games — including some designed by kids.
- Health & Medicine
The sweet truth about carbohydrates
Many carbohydrates are important sources of energy, while others offer little benefit. Learn why not all carbs are the same and how our bodies use them.
- Chemistry
Not all that tastes sweet is sugary
We’re naturally drawn to sweet foods and drinks. Scientists have designed several ways to make things taste sweet with little or no sugar.
- Humans
Analyze This: Spooky feelings may come from noises too low to hear
People exposed to low infrasound frequencies had higher levels of a stress hormone in spit and were more likely to rate music as sad.
- Chemistry
Experiment: Make your own marshmallows!
Soft, sticky marshmallows can be made with just three ingredients. Finding the right ratio of sugar and corn syrup is key to making this sweet treat.
- Archaeology
Ancient Egyptian princesses may have been skilled warriors
A study of six mummies from ancient Egypt challenges the idea that the weapons buried with some royal women were merely ceremonial.
- Animals
The Cyclops may be an ancient myth, but one-eyed creatures are real
The iconic Cyclops of The Odyssey might look like a massive, one-eyed person, but it might have more in common with creatures other than humans.
