Sal Khan: The Secret of My Success
How do you get to Carnegie Hall? Lots of practice. How do you transform education? For Sal Khan, the mastermind behind the online phenomenon Khan Academy, the key is preparation.
From 2011-2014, Daniel Honan was the Managing Editor at Big Think. Prior to Big Think, Daniel was Vice President of Production for Plum TV, a niche cable network he helped launch in 2002. The production team he oversaw won over two dozen Emmy awards. Daniel has created numerous shows and documentaries for television, and his film credits include Stealing the Fire, a documentary on the black market for nuclear weapons technology.
Follow Daniel on Twitter @DanielHonan
Khan Academy serves up hundreds of thousands of online lessons every day, and is changing education as we know it. The site offers easily digestible, 10-minute lesssons on a wide variety of subjects that allow students to learn at their own pace.
The man behind this innovative non-profit is Sal Khan, who teaches all of the lessons using Adobe Illustrator, a natural talent for teaching, and above all, a unique and refreshing approach to preparation. Khan shares his advice with Big Think, and educators everywhere: prepare your thoughts, not a script. Watch here:
Here's the science of black holes, from supermassive monsters to ones the size of ping-pong balls.
- There's more than one way to make a black hole, says NASA's Michelle Thaller. They're not always formed from dead stars. For example, there are teeny tiny black holes all around us, the result of high-energy cosmic rays slamming into our atmosphere with enough force to cram matter together so densely that no light can escape.
- CERN is trying to create artificial black holes right now, but don't worry, it's not dangerous. Scientists there are attempting to smash two particles together with such intensity that it creates a black hole that would live for just a millionth of a second.
- Thaller uses a brilliant analogy involving a rubber sheet, a marble, and an elephant to explain why different black holes have varying densities. Watch and learn!
- Bonus fact: If the Earth became a black hole, it would be crushed to the size of a ping-pong ball.
Protected animals are feared to be headed for the black market.
In a breakthrough for nuclear fusion research, scientists at China's Experimental Advanced Superconducting Tokamak (EAST) reactor have produced temperatures necessary for nuclear fusion on Earth.
- The EAST reactor was able to heat hydrogen to temperatures exceeding 100 million degrees Celsius.
- Nuclear fusion could someday provide the planet with a virtually limitless supply of clean energy.
- Still, scientists have many other obstacles to pass before fusion technology becomes a viable energy source.
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