There are 12 new events in this year's winter Olympics. Three of which are mixed events.
http://m.olympic.org/mobile/news/what-s-new-for-sochi/218742
There are 12 new events in this year's winter Olympics. Three of which are mixed events.
http://m.olympic.org/mobile/news/what-s-new-for-sochi/218742
Todays official holiday is called Washingtons Birthday and not Presidents Day according to the Federal government. However George Washington's actual birthday was on February 11.
Cites:
http://www.opm.gov/policy-data-oversight/snow-dismissal-procedures/federal-holidays/#url=2014
http://www.archives.gov/legislative/features/washington/
The US has hosted the most winter Olympics. The Olympics have been in Lake Placid twice, in 1932 and 1980, Squaw Valley in 1960, and in Salt Lake City in 2002.
Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%. These gases precentages stay fairly constant day to day. The other atmospheric gases appear in trace ammounts and can vary day by day.
Cite:
http://www.nc-climate.ncsu.edu/edu/k12/.AtmComposition