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Archive for the 'Science' Category

Feb 11 2008

Where was Thomas Edison born?

Published by Cindy under History, Places, Science, Where?

Thomas Alva Edison was born in Milan, Ohio on February 11, 1847.  He was born in the home designed by his father, Samuel.  The family sold the house in 1854, but after Edison’s death members of his family purchased the home with the intention of turning it into a museum.  Today, the Edison Birthplace Museum [...]

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Feb 08 2008

Where was gunpowder invented?

Published by Cindy under History, Science, Where?

Gunpowder was invented around 85o A.D. in China.  This mixture of potassium nitrate, sulfur and charcoal was not invented by men seeking to make a more effective weapon.  It is thought that instead it was discovered accidentally by Chinese alchemists seeking a much different invention.   The experts are split as to what that was.  Some [...]

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Feb 04 2008

Where do stem cells come from?

Published by Cindy under Science, Where?

Scientists hail stem cell research as one of the most promising ways to find treatments for Alzheimer’s disease, juvenile diabetes, cancer and a host of other ailments.   Stem cells can be harvested in five ways. 

Embryonic stem cells are harvested from embryos within 7-10 days after fertilization. 
Fetal stem cells are harvested from tissue of aborted fetuses.
Umbilical [...]

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Nov 27 2007

What is the Hottest Planet?

Published by Jennifer under Science, Solar System, What?

Although it is not the planet closest to the sun, Venus is the hottest planet in the Solar System - it is so hot because of its thick atmosphere of carbon dioxide.
You can read more on the hottest planet at PhysLink.

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Nov 26 2007

What is the Farthest Planet from the Sun?

Published by Jennifer under Science, Solar System, What?

Typically, Pluto was the farthest planet from the sun (when it moved past Neptune, that is), but now Pluto’s been booted from our Solar System’s lineup of planets, making Neptune the farthest planet from the sun.

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