Green Matters on MSN

What Is the Nordic Walking Technique and How Can It Benefit Your Health?

If you have not yet tried the Nordic walking technique, you should consult a doctor to see if this "ski walking" technique ...
IFLScience

How Eratos­thenes Measured The Earth's Circumference With A Stick In 240 BCE, At An Astonishing 38,624 Kilometers

Though the exact length of a "stadia" is unknown, his measurement is thought to be accurate to within one percent of the ...