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."

As early childhood professionals, we each have a philosophy on teaching, classroom management, family engagement, and curriculum, to name only a few. Starting today, we must make sure that if our philosophies don’t already include play, we begin developing that vital...

C.M. Rubin’s Global Education Report
Nuclear weapons have been used twice in warfare: in the bombings of Hiroshima and Nagasaki in 1945. As the threat of nuclear warfare drew closer last year, it was announced that Beatrice Fihn and her advocacy group, The International Campaign to Abolish Nuclear Weapons (ICAN), had won the...
If you’ve been in education for any length of time, you know you can count on one thing: things are going to change. The latest, greatest educational reform-whether if it comes from the federal, state or local level (or all of them) will surely impact your school and classroom. Reform, plainly speaking, is the nature of education. And if you’re going to survive for any amount of time in this profession, you must learn to ride these waves.
Just in the last decade, education has...

“What struck me most was the absurdity, that everyone agrees these weapons should never be used, but we need nuclear weapons so they won’t be used?” — Beatrice Fihn
What can we learn about innovation from those who seek to abolish nuclear weapons?
The Tribeca Disruptive Innovation Awards (TDIA) has named Nobel...

“We should be changing the goals of education to focus on deeper learning: Relevance of what is taught, to build motivation, and personalization of the What and How; Versatility, to create ‘Renaissance humans’, which brings robustness to face whatever life throws at us; Transfer, insuring that what we learn in...
Mentor teachers play a significant role in helping to prepare new teachers for the profession. The rewards for hosting a student teacher in your classroom can be many: benefiting from their enthusiasm and energy, feelings of satisfaction as you see them grow and develop, picking up the latest teaching techniques, a chance to collaborate and co-teach.
However, deciding to mentor a student teacher is a major decision. The responsibility is great as you have agreed to serve as a role-...

“I like to think that we’ll find ways to partner with our AI creations — to enhance life, bringing about more shared equity and prosperity, and to enable humans to connect more deeply with one another.” — Chris Messina
Many know Chris Messina as the guy who invented the Twitter hashtag, but Chris Messina...