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."
Ask children about the food pyramid and the need for a balanced, healthy diet, and I would bet that many would be familiar with the concept.
Now, ask those kiddos about the need for a healthy, balanced diet for the mind, and I think you would lose them.
Recently, I have been fascinated with the work of Dr. Daniel Siegel, a clinical professor of psychiatry at the UCLA school of medicine, whose work includes the Healthy Mind Platter concept. The model proposes that in order...
Education Worlds Science and Technology Pinterest board has been listed by the Smithsonian Science Education Center as one of seven boards to follow for STEM resources.
STEM (Science, Technology, Engineering and Math) education is a national priority, aimed at making U.S. students more proficient in these key fields. Pinterest, a fast-growing social platform, has evolved as...
Scientists say they have found what is being called the "world's oldest public toilet"...for dinosaurs. Thousands of fossilized droppings(called coprolites)have been uncovered in the country of Argentina~in a region called La Rioja Province. The dino poo is from a dinosaur called Dinodontosaurus~ a herbivore(plant eater) that lived about 240 million years ago which was somewhat like the rhinos of today.
It is thought that even dinosaurs didn't want to "go" where they lived and ate. And...
Owners of older Apple devices cheered when the news came from Cupertino that iOS7 was going to be available on older models like the iPad2 and iPhone 4S. However, the joy that came with running a brand-spanking-new OS on an older machine was tempered with the realization that the older hardware produced good-but-not-great performance.
The folks over at...
Ever wonder what became of the Mayflower, the ship which took 102 Pilgrims over the Atlantic to North America in 1620?
Check out this interesting reading: On a trip to England, my husband and I visited a Quaker barn in Old Jordans, Buckinghamshire,that may have had the Mayflower used in its construction! Check out the story at my website:
http://gailhennessey.com/index.shtml?barn.html
There are some photographs I...