Calcium & Vitamin D
Why does calcium need vitamin D to get into bones? (Vitamin D receptors in the intestine enhance …
Cassette
Remote-Controlled Flies
Genetically engineered flies can be controlled with laser light.
Sleep Roundup
Mice have been chemically induced into hibernation, and disrupting a gene controlling sleep patterns …
School Bus Fumes
Exhaust fumes are worse inside a school bus than outside.
Unpopped Popcorn
Heat affects the outer coating of popcorn kernels, making some easier to pop.
Zoo in You
The human gut has nearly 400 species of microorganisms, and microbes in the gut affect the action of …
Alcohol & Bacteria
Why does rubbing alcohol kill bacteria? (Disrupts their cell membranes)
Dental Light
Shining a blue light on teeth kills the bacteria that cause cavities.
Forgetting Dreams
Why can't we remember all of our dreams? (Happens in the deep parts of the brain, perhaps not meant …
TV Bullies
Children who watch a lot of TV are more likely to become bullies later in life.