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."
The release of Apple's latest mobile operating system is leaving owners of older devices behind, but a Cupertino policy for these devices means that they will not be rendered "obsolete."
iOS 7 is a huge departure from the previous verisons of the operating system. As such, only the most recent devices posess the hardware to utilize it. That means...

Need a short activity for your students: In the News...
NASA has announced that the first man-made object has left the solar system! The Voyager 1 launched in 1977(along with the Voyager 2 sixteen days later) has left heliosphere and is now zooming into interstellar space. The heliosphere is the boundary separating our solar system including the sun~...
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Perhaps, this might be of interest for a Bell Ringing Activity:
I n a world where beauty is highlighted, a unique organization wants people to think about creatures less cute. The Ugly Animal Preservation Society, located in Great Britain,has just selected a new mascot-the Blobfish, as the world's ugliest creature! Found in the deep ocean waters off of south-eastern Australia, the Blobfish is really a creature only a mom(or dad)could love! A world wide competition was recently held with...
We're into the second week of September, which means that Apple is revealing its latest version of the iPhone. Where previous events were met with jaded yawns, this year's announcement has the tech world buzzing.
In addition to the...
Bertolt Meyer was born with about an inch of arm below his left elbow. He uses a prosthetic arm known as the i-limb. Held on by suction using a silicone sheath, the i-limb gives the prosthetic a tight seal where it connects to the rest of his arm.
The newest version of the i-limb features a very apt bionic hand. Each finger has its own motor, with two electrodes inside the forearm that react to signals given by the muscles above the prosthetic limb. An app that...
Transitioning to our profession each year is a refreshing opportunity to reinvent ourselves. Through our talents to maintain a balanced life and help others do the same, we can and do make a difference!
This week as students and families think about September 11, 2001 and see ever emerging graphic images of the horrors of that day, let's find the strength to:
1. respect what is good about our nation
2. remind...