Showing posts with label tech. Show all posts
Showing posts with label tech. Show all posts
Tuesday, June 10, 2014
Wall socket voltage
The thing I learned today is that a standard wall socket in the US has 110-120 volts of current. The voltage varies considerably by country.
Saturday, May 3, 2014
The people who have walked on the moon
The thing I learned today is that twelve men have walked on the moon. Neil Armstrong was the first man on the moon, followed immediately by Buzz Aldrin; this was on July 21, 1969. The next two moon walkers were Pete Conrad and Alan Bean, who trod the dusty surface of Luna November 19 and 20, 1969, as part of the Apollo 12 mission. And the fifth and sixth on the moon were Alan Shepherd and Edgar Mitchell, who walked the moon in February of 1971. The last person to have walked on the moon (for now!) is Eugene Cernan, in 1972. Here is a mnemonic: Arm All Conquering Bears; Sheep Might Scamper.
Sunday, March 12, 2006
Sunday, February 19, 2006
Scott Fahlman, a computer scientist, is credited with first proposing the emoticon on a Carnegie Mellon message board in 1982. He proposed :-) as a a "joke marker," because it warned reader that an email was not intended to be taken seriously.
Saturday, February 4, 2006
Cyber Monday
The term Cyber Monday was coined by Ellen Davis of the National Retail Federation and Scott Silverman, and made its debut on November 28, 2005, in a Shop.org press release entitled "Cyber Monday Quickly Becoming One of the Biggest Online Shopping Days of the Year." Cyber Monday takes place the Monday after Thanksgiving
Friday, January 20, 2006
Elwood Edwards was a voice-over actor most famous for voicing AOL notifications, including the most famous "You've got mail!"
Tuesday, October 18, 2005
Alvin Toffler
Alvin Toffler was a writer and futurist, best known for his works Future Shock and The Third Wave. He predicted how technology will shape how people feel and interact in a post-industrial society.
Wednesday, September 28, 2005
The Compact Disc was pioneered by Philips Electronics, working with Sony, but using Philips' technology from as far back as 1977. The CD was introduced in 1982 and was 74 minutes long because that was the longest recording of Beethoven's Ninth in Sony's vaults.
Thursday, September 22, 2005
Friday, September 9, 2005
Monday, August 1, 2005
The Bugatti Veyron, produced by Volkswagen subsidiary Bugatti Automobiles SAS, was first produced in 2005. Reaching 62 mph in 2.5 seconds, with an average top speed of 253 mph, it is the fastest-accelerating street-legal car in the world. At 1.1 million Euros pricetag, it is also the most expensive.
Saturday, July 2, 2005
Car batteries
Car batteries are made up of plates of lead and lead oxide, which are submerged into an electrolyte solution of about 35% sulfuric acid (H2SO4) and 65% water.
Thursday, June 9, 2005
Monday, June 6, 2005
Electric wiring was installed in the White House in 1891 under Benjamin Harrison, the 23rd President. Allegedly, he and his wife were afraid to touch the fixtures.
Wednesday, April 27, 2005
Chester Carlson was an American physicist and patent attorney who invented instant copying, which was later named xerography (whence the company name Xerox). See also Joseph C. Wilson.
Wednesday, February 9, 2005
The Dole Light was an early name for the "center high mount stop lamp" on cars, named for Elizabeth Dole, who as Secretary of Transportation oversaw their implementation.
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