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Earth's Core Hotter Than First Believed

coreUsing 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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King Tut Day is November 4th. Are You...


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...

The Geeks Have Inherited the Earth

It’s true. The geeks have inherited the earth.

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Mummy Facts to Share with Your Students...

With Halloween around the corner, you may find these MUMMY FACTS of interest to share with your kids. 

  1. Many mummies, male and female, were buried with extra hair wigs for the afterlife.
  2. Mummies of pharaoh (kings) had onions place in the eye sockets for eyes.
  3. With Halloween around the corner, perhaps, you may find these MUMMY FACTS of interest to share with your students.
  4. Many mummies, male and female, were buried with extra hair wigs for the...

Around the World in 30 Days

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...

Starting a Schoolwide Enrichment...

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...

Pumpkins Factoids to Share with Your...


Learn about Pumpkins!

1. Pumpkins are thought to have originated in Central America, specifically Mexico. Some seeds found date back to 5500 B.C.

2. Top pumpkin growers are U.S. farmers, growing more than 1.5 billion each year.

3. The word pumpkin comes from the French word for “large melon”,
pompon. The English used “pumpion” and colonists used “pumpkin”.

4. The World’s Largest Pumpkin Pie was made in New Bremen, Ohio, in 2010. 1,212 lbs of...

Starting a Schoolwide Enrichment...

Note: This is the second installment of a three-part series.

 

In the last blog, I began telling my adventure of launching a schoolwide enrichment cluster program. In this second installment, I’d like to dive into the part of the story, where I discuss how I overcame challenges with space and training coaches.

The school where I work is located on a very compact campus. It’s vertical in design, third-stories, but very narrow.  Worse, despite several pleas, classroom...

Happy Diwali 2014!

The 2014 Diwali, or Deepavali, celebration begins on October 23 and lasts for 5 days.

It's a happy time of year, and is the biggest holiday in the country of India. Practiced mainly by people of the Hindu faith, many other people enjoy taking part in the festive holiday season too. ...

Whopper of a pumpkin grown! It's a...

The world record (North America) for heaviest pumpkin has been smashed once again! Last year,Guinness World Records crowned Tim Mathison, Napa, California,with the record for his 2032 pound pumpkin.This year's gourd , grown by John Hawkley, was weighed at a pumpkin contest in California. It tipped the scales at 2058 pounds! That's the size of a small car. Amazingly, Hawkley also had another pumpkin that was over 2000 pounds(that's ONE ton!).

Photograph from LAtimes.com...

Rigorous Grading Using Microsoft Word...

The following is an excerpt about electronic grading file naming strategies that lead to faster grading techniques from my new 2014 Westphalia book entitled, Rigorous Grading Using Microsoft Word AutoCorrect: Plus Google Docs.

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