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."
A student is asked to create a bookmark that contains higher-order thinking questions. After struggling to create the “perfect” question, she runs out of time and completes only half the assignment. The session ends with the girl in tears, upset over her perceived failure.
On the same day, another student, faced with finding common themes between texts, shuts down with frustration. Rather than cry, he simply refuses to talk or continue the assignment.
...
The tallest building in the United States (and the Western Hemisphere) has opened for business. Built at the site of the original World Trade Towers, which were destroyed by terrorists on September 11, 2001, the new One World Trade Center has 104 floors and took eight years to build. Standing 1776 ft. tall, the skyscraper will have a ceremony marking its official opening later in the month.
I am very happy to see this new building standing proudly in the New York skyline!
...
A book review by C. M. Rubin
What happens when you create a productive tension between HARD (persistent, challenging, competitive, data-driven, short-term) and SOFT (creative, collaborative, people centered, organic, long-term)?
A groundbreaking new book, Uplifting Leadership, doesn’t just hypothesize that such an uncommon balance can turn failure into success, it offers astonishing global...
"The direct contact with actual physical phenomena was the key to developing science topics in more depth." -- Silvina Gvirtz
I’m on a quest to find the most inspiring school turnaround success stories from around the world.
From Argentina this morning, I am delighted to welcome once again to The Global Search for Education Dr. Silvina Gvirtz (Executive Director of Conectar Igualdad...
I love all things mummies! This past summer, I visited Highclere Castle outside of London, England,and toured the castle and gardens made famous for being the backdrop of the British series, Downton Abbey. In the basement was also a museum to King Tut. Why, you may ask? Well, George Herbert, the 5th Earl of Carnarvon whose family has owned the castle for many years, funded the expedition to search for the tomb of King Tut. When Howard Carter discovered the tomb, he waited...
With Halloween around the corner, you may find these MUMMY FACTS of interest to share with your kids.
C. M. Rubin’s global education report from Canada, China, Africa and Latin America
This past month in The Global Search for Education, I talked to global education leaders working at the frontiers of their fields to gather new perspectives on some of our greatest concerns in education today. Talking to educators from Canada, China, Africa, and Latin America gave me a richer perspective on a number of the debates that we are having to find...
Note: This is the final installment of a three-part series.
If you’ve read my last two blogs, you know that starting a schoolwide enrichment cluster program is both rewarding and challenging. After you have cleared the logistical hurdles, you get to focus on the fun part: watching the students create product and services and share them! This is where the Parent Showcase comes in.
At the end of the 10-week program, I arranged a showcasing day in the school’s...