Do you know how to measure the diameter of the earth? No? Then you’re less advanced than they were in 230 BC. You’re basically a Neanderthal with access to a microwave. Find out how to fix that in ...

Science teachers in a summer physics class at Southeast Missouri State University relied on shadows Thursday to calculate the Earth's circumference during the summer solstice, the longest day of the ...

The World Health Organization's current weight-based guidelines for assessing malnutrition in children with diarrhea are not as reliable as measuring the child's upper arm circumference, new research ...