Add Yahoo as a preferred source to see more of our stories on Google. Dedicated cyclists set different goals to strive for, from cycling 40 miles in a day to cycling 5,000km or around 3106 miles in a ...

MATTAPOISETT, MASS. (WHDH) - A Mattapoisett man is close to completing a decades-long journey to walk the length of the Earth’s circumference. It all started with a doctor’s order in 1988 and now, ...

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 ...

A 70-year-old man from Limerick is seeking the Guinness World Record for walking the equivalent of the Earth’s circumference in under 1500 days. Vinod Bajaj, from Castletroy, has walked 40,107km ...

A San Luis Obispo resident rode the equivalent of the circumference of the Earth on his bike. Tony Murphy took 11 years to ride 24,901 miles on his bike, which is the same as one time around the Earth ...

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 ...

CC0 Usage Conditions ApplyClick for more information. About two thousand years ago, a Greek scholar named Eratosthenes used some sticks, shadows and math to calculate the circumference of the Earth.