HAND-HELD CALCULATOR
February 1, 1972 - United States
The first scientific hand-held calculator was introduced for $395 by Hewlett- Packard, named the HP-35 for having 35 keys. It was the first hand-held calculator able to perform logarithmic and trigonometric functions with one keystroke. The red LED display could give scientific notation up to 10 digits mantissa and 2 digits exponent. The price was reduced several times, eventually to $195. By Feb 1975 (when production of the model was discontinued), 300,000 had been sold. The numbers and functions for calculations were entered in “Reverse Polish Notation”(RPN), which used an “ENTER” key but needed no parentheses or “=” key. It ran on rechargeable batteries and had electronics with several integrated circuits in a 79 ×147×34 mm (3.1" x 5.8" x 1.4") case.
OBAMA SHUTS DOWN THE MOON PROJECT
February 1, 2010 - United States
Barack Obama has canceled NASA's plans for taking men to the Moon. The Constellation program had been looking at new rockets and a crewship to put astronauts on the lunar surface by 2020. In the 2011 budget request that was issued on Monday, February 1st, Obama has said that the project is too costly, 'behind schedule, and lacking in innovation.'
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The wealth of the nation
by Earth Day, Gaylord Nelson
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Harvard Medical School
about Eyesight Myth and Fact
Myth: Staring at a computer screen all day is harmful to the eyes.
Fact: Spending the day staring at a screen can tire or strain your eyes, but it will not hurt them. Make sure lighting doesn't create a glare on your screen. When spending long periods at your keyboard, take a break now and then to rest your eyes to reduce fatigue. Also, don't forget to blink. Your eyes need to stay lubricated to feel comfortable.
Salary
about Steve Jobs
Steve Jobs' annual salary was $1, just enough to keep company health benefits.
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Is reinventing content distribution and empowering organizations through social, mobile, and cloud technologies. We started 10+ years ago, motivated by the ability to offer a “Horizontal Medi...
The largest database of magazines and newspapers on the Internet, with listings for about 25,000 magazines, newspapers and top news sites from all over the world. All You Can Read is a complete gui...
Kanab Utah's weekly news source, the local news, sports, school, community and advertising for Kane County, Utah and Northern Arizona. Employment information, Utah Government news, southern Utah tr...
Designed to target advertiser's most valuable customers and prospects. The Salt Lake Tribune's digital network can deliver mass reach in key markets, as well as targeting across geographic, behavio...
Formed by a joint operating agreement between The Salt Lake Tribune and the Deseret News, Media One of Utah oversees advertising, printing, circulation and business functions of Salt Lake City's da...
Find breaking news, multimedia, reviews and opinion on Washington, business, sports, movies, travel, books, jobs, education, real estate, cars and more.
A leader of Urban Connection provide Mens Tall Tees Shirts, Tall T-Shirts, Hip Hop Tshirts, Urban Tees, Tall Tshirts, Long T-Shirts, Long tees, Polo Shirt in USA from Brandedbasics.
The course of the River Thames as we know it today was created about 10,000 years ago, by melt water from the ice-sheets that covered much of the United Kingdom during the last ice-age...