Binoculars can be used to look into space. There are reasons why we don't use them.
Sweaty feet and certain cheeses have something in common that makes them reek - can you guess what it is?
Humans are drawn to foods with certain components - and pizza has them all.
Birds spend a lot of time and energy singing, but they don't do it the same way in every season of the year. And some can't sing at all. What's the purpose of birdsong?
Research suggests that kids benefit when there are fewer of them in a classroom. But quickly reducing class size can cause new problems as schools scramble to hire new teachers.
You need three ingredients to make a fire. A fire extinguisher removes at least one of them.
A new study looks at whether deaths by suicide could be lowered with mental health care. To a small degree, yes. But a look at the costs suggests there may be better ways to prevent shooting deaths.
Almost half of school funding in Colorado comes from local taxes.
People have probably always wanted clean and healthy teeth. What they historically used to achieve dental hygiene might surprise you.
Elizabeth Warren's education plan comes at cost of over $100 billion per year during the next decade.