Using a series of very technical tests, scientists from the French research facility CEA have determined that the Earth's core is roughly 6,000 degrees Celsius. That is approximately 1,000 degrees hotter than the temperature obtained by tests in the 1990s.
These new figures show that the center of the Earth is just as hot as the surface of the sun.
The experiment that supplied the new temperature used X-rays to probe tiny samples of iron at extraordinary pressures to examine how the iron crystals form and melt. The BBC reported that "To replicate the enormous pressures at the core boundary - more than a million times the pressure at sea level - they used a device called a diamond anvil cell - essentially a tiny sample held between the points of two precision-machined synthetic diamonds.
Once the team's iron samples were subjected to the high pressures and high temperatures using a laser, the scientists used X-ray beams to carry out "diffraction" - bouncing X-rays off of the nuclei of the iron atoms and watching how the pattern changed as the iron changed from solid to liquid."
Speed of Creativity blogger Dr. Wesley Fryer encourages teachers to give students differentiated, 21st-century options for demonstrating mastery and understanding of the curriculum.
These methods can include images, audio and video, as opposed to the typical text-only type of assessment. To that end, Fryer provides a helpful list of resources and Web...
Time Travel....Where would you go?
Time travel. Wouldn't it be amazing if one day people actually could travel back in time to witness historic events? It got me thinking, if you could take a trip back in time, what historic event would you like to see?
I think being at Kitty Hawk, on December 17, 1903, and witnessing Wilbur and Orville make their historic flight would be pretty interesting.
On a personal historic event, I'd love to travel back to see my grandmother's family...
Teaching creativity involves well~ a little creativity.
When do you find the time to teach it? Whats the best way to teach creativity? How do you assess it?
What seems to work for me in helping my gifted students develop creativity involves using the Creative Problem Solving Process developed by Donald Treffinger.( to learn more~ go to http://www.creativelearning.com/creative-problem-solving/about-cps)
CPSP entails using six...
12 newborns will be given to the wrong parents each day
114,500 mismatched pairs of shoes will be shipped each year
18,322 pieces of mail will be mishandled every hour
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With my finance being of Chinese descent, I have enjoyed a first-hand look into the culture and beliefs of an immigrant Asian family. Born in Cambodia, my finance, her mother, father, five sisters, and two brothers fled the savage attacks brought on during the countrys civil war in the 1970s. Arriving in Florida, many of her siblings married and had children of their own. Ive seen the strict importance placed on education, working hard, and respecting elders. Ive witnessed how the...