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."
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In this thoughtful Harvard Business Review article~ Boris Groysberg and Robin Abrahams (Harvard Business School) offer advice to maxed-out~ stressed-out leaders who have concluded that work/life balance is an unattainable goal. The authors and their collaborators spent five years interviewing 4~000 executives around the world and report that prospering in the senior ranks is a matter of carefully combining work and home so as not to lose themselves~ their loved ones~ or their foothold on...
Check out this free web quest on Presidential trivia-lots of interesting facts! http://gailhennessey.com/index.shtml?presidentcyberhunt.html
*Illustration from publicdomainclip-art.blogspot.com
There have been many polls taken on the...
Which program serves as the best model for gifted children?
Thats an interesting question~ sure to bring out a variety of responses. In this blog~ Id like to share my opinionbut please remember~ its just that~ simply an opinion.
Based on my experience and research~ I have to confidently say that while there is no one perfect system~ no holy grail so to speak of gifted delivery models~ I would recommend some combination of using a separate classroom or pull-out program with...

I love history....always have~ especially world history. Unfortunately~ kids don't always see the excitement in history. Maybe~ showing that history is all around them~ even in CANDY~ might be a way to spark an interest in the subject.
Marshmallows date back to 2000 BC in ancient Egypt and King Tut's Tomb contained licorice! Did you know that the earliest "lollypop" was probably eaten by prehistoric people that placed honey from a bee hive onto a stick? Did you know that candy...