July 10, 2007: Snow fell for the first time in 90 years in Buenos Aires.

Metrication is the process of introducing the International System of Units to replace historical or customary units of measurement in a country. The US is one of only three countries ...

Cryogenics is the scientific production of temperatures below —150° Celsius, —238° Fahrenheit or 123° Kelvin, and the study of the resulting effects on materials such as metals and plastics. Cryogenics ...

Heavy snowfall began in Beijing, China on Saturday, January 2, 2010 and continued throughout Sunday. Over 1.5 inches have fallen in the capital, with almost 5 inches recorded in ...

Syrah/Shiraz is a variety of dark grape used to make red wine in many countries. In the United States, France, Europe and many other countries it is referred to ...

This is a travel guide for a Riviera Maya Vacation. Also see the Mahalo guides to Riviera Maya Hotels and Riviera Maya Restaurants.

A Paratropical subsea is a high-latitude body of water within a paratropical province and one in which the temperature regularly falls below 20 degrees Celsius (68 Fahrenheit) but does ...