How Fast Is America Sinking?
From hard data about China's economic prowess to cultural markers like Sesame Street's new impoverished puppet, it sure seems like the U.S. is losing ground, and fast.
What's the Latest Development?
While the American economy is mired in unemployment and its global goodwill stymied by two foreign wars, the superpower is feeling more humbled than ever. "Not a day goes by without a classic example, from the poverty-stricken new muppet on Sesame Street who doesn't have enough to eat to the supposed cocaine slump on Wall Street and the new government initiative to attract Chinese shoppers here." Still, the recent Republican debates have spared no praise when it comes to recognizing America's greatness.
What's the Big Idea?
If political leadership is any indication of where the U.S. may be going next, the signs are not encouraging. "There's much that ails America today, from schools that stink to collapsing infrastructure and a bloated financial system nowhere near finished dealing with the results of the burst housing bubble. But the bigger problem may be this: a political system that rewards bloviating over American greatness but not those whose hard work or big ideas might ensure Americans actually still have something to crow about."
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.
Military recruits are supposed to be assessed to see whether they're fit for service. What happens when they're not?
- During the Vietnam War, Robert McNamara began a program called Project 100,000.
- The program brought over 300,000 men to Vietnam who failed to meet minimum criteria for military service, both physically and mentally.
- Project 100,000 recruits were killed in disproportionate numbers and fared worse after their military service than their civilian peers, making the program one of the biggest—and possibly cruelest—mistakes of the Vietnam War.
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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