Making Cheaper Solar Energy
The U.S. Department of Energy aims to bring down the cost of solar electricity via a new program dubbed "SunShot," an homage to President John Kennedy's "moon shot" pledge in 1961.
The sun supplies our planet with enough energy each day to power humanity's electricity demands for an entire year, but harnessing this energy is expensive, especially compared to electricity produced by burning coal and natural gas. The Department of Energy wants to bring the price of solar power down to one dollar per watt over the next six years—a ten-fold decrease through its investment initiative called SunShot. "As part of the new SunShot initiative, DoE committed some $27 million to fund novel methods for producing solar cells and their components."
Malcolm Gladwell teaches "Get over yourself and get to work" for Big Think Edge.
- Learn to recognize failure and know the big difference between panicking and choking.
- At Big Think Edge, Malcolm Gladwell teaches how to check your inner critic and get clear on what failure is.
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It's one of the most consistent patterns in the unviverse. What causes it?
- Spinning discs are everywhere – just look at our solar system, the rings of Saturn, and all the spiral galaxies in the universe.
- Spinning discs are the result of two things: The force of gravity and a phenomenon in physics called the conservation of angular momentum.
- Gravity brings matter together; the closer the matter gets, the more it accelerates – much like an ice skater who spins faster and faster the closer their arms get to their body. Then, this spinning cloud collapses due to up and down and diagonal collisions that cancel each other out until the only motion they have in common is the spin – and voila: A flat disc.
Both panoramic and detailed, this infographic manages to show both the size and distribution of world religions.
- At a glance, this map shows both the size and distribution of world religions.
- See how religions mix at both national and regional level.
- There's one country in the Americas without a Christian majority – which?
Do you have a magnetic compass in your head?
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