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4/19 Aryabhatta, Salyut 1, Darwin, and 10 ways to teach kids about Earth Day

India launches first satellite (1975)
India launched their first experimental on April 19,1975. The satellite was lifted into space using a Soviet Intercosmos rocket and remained active for 5 days.  It fell out of orbit in 1992.  The satellite was named “Aryabhatta” after the Indian mathematician and astronomer Aryabhatta, sometimes known as Aryabhatta the elder (476-550 A.D.)  He accurately calculated pi to 8 places (3.14159265), explained the reasons for solar and lunar eclipses, and was very close in approximating the length of a year (Earth orbit around the sun).

Soviet Union launches first space station (1971)
The Soviet space agency launched the Salyut 1 space station (20 meters in length by 4 meters in diameter)  into orbit. It was the first satellite that was designed with pressurized chambers that astronauts could enter in order to perform experiments.  The Soyuz 11 crew first docked with the space station on June 29, 1971.  On October 11, 1971, after 175 days in space the Salyut 1’s rockets were fired to take it out of orbit in order to crash into the Pacific Ocean.

Charles Darwin died (1882)
Charles Darwin (1809 – 1882), best known for theories of evolution that developed from his observations aboard the H.M.S. Beagle and exploration of the Galapagos islands died on April 19, 1882.

Ten Ways to Teach Kids about Earth Day
Think a child or a family can’t make a difference? Not so. Little things – like using a colorful cloth bag, or tossing potato peels and eggshells into the compost bin -can help the environment. And if your child develops good habits now, they’ll endure as he grows.  Here are 10 ways you can encourage your kids to go green during Earth Day.

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