Did you know: Albert Einstein Had Speech Difficulty as a Child
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  • Lunar eclipse December 2011

    Posted on December 9th, 2011 rudrarup No comments

    A lunar eclipse occurs when the Moon passes behind the Earth so that the Earth blocks the Sun’s rays from striking the Moon. This can occur only when the Sun, Earth, and Moon are aligned exactly, or very closely so, with the Earth in the middle. Hence, a lunar eclipse can only occur the night of a full moon. The type and length of an eclipse depend upon the Moon’s location relative to its orbital nodes. The most recent total lunar eclipse occurred on June 15, 2011; it was a central eclipse, visible over Europe and South America after sunset, over Africa and most of Asia, and Australia. The year’s second most important lunar eclipse will occur on 10th of December evening at sunset. Contrary to solar eclipse for which you need special goggles, lunar eclipse can be seen through naked eye.

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  • D.C. Motor

    Posted on November 24th, 2011 rudrarup No comments

    Make a simple D.C. motor.

    Following is a video for a simple D.C. Motor that you can make with articles lying around the house.