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TODAY IN HISTORY

    FIRST PRIMATE IN SPACE
    January 31, 1961 - U.S. launched a 4-year-old male chimpanzee

    The U.S. launched a 4-year-old male chimpanzee named Ham on a Mercury-Redstone 2 rocket into suborbital flight to test the capabilities of the Mercury capsule. During his 16.5 minute suborbital flight, Ham experienced about 7 minutes of weightlessness, reached an altitude of 108 miles and a speed of 13,000 mph. He was wired to medical sensors to monitor his vital signs. During flight, Ham performed some simple tasks such as pulling levers when a light came on for a reward of banana pellets. Ham was recovered safely 1,425 miles downrange. This was a test flight before risking the lives of human beings. Now, after Ham's successful flight, NASA was ready to launch the first Mercury astronaut, Alan Shepard, into sub-orbital flight three months later.

    FIRST AMERICAN SATELLITE
    January 31, 1958 - United States

    The United States entered the space age by launching the first successful orbiting satellite, Explorer-I, four months after the Soviet launch of Sputnik on 4 Oct 1957. Explorer-I measured cosmic radiation, and led to the discovery of the Van Allen radiation belt. Its instrumentation included temperature sensors, a micrometeorite impact microphone, and a ring of micrometeorite erosion gauges. Data from these instruments were returned by a 60-mW transmitter operating on 108.03 MHz and a 10-milliwatt transmitter operating on 108.00 MHz. Explorer-I was 80-inch long, 6-in diam, weighed 31-lb with 18-lb of payload and was delivered into orbit using a Jupiter-C rocket. The orbit had a period of 114.9 minutes.

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The owners of every website possess the innate desire to get their website on the top of page ranking. They try their level best to achieve that goal as far as possible.

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The owners of every website possess the innate desire to get their website on the top of page ranking. They try their level best to achieve that goal as far as possible. However, to achieve the goal of the best page ranking is never easy without proper search engine optimization. Therefore, it can be said that to get on the top of page ranking the most essential thing is to have proper search engine optimization done on your website. Search engine optimization means the proper understanding of the search engine working procedures and their algorithms. But it is to be remembered that the search engine algorithms never always remains the same, and as always the search engine algorithms keep on changing therefore it is better if you seek the help of some expert SEO company to help you with the search engine optimization for your website. This is the best thing to do because these SEO service-providing companies are quite experienced and well acquainted with the latest developments in search engine algorithms and thus can save you a lot of time, which in the other case you may have to waste for studying the latest search engine algorithms.

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