Take the Money, Honey
New research shows men tend to be overly confident, reactive, and eager for short-term gains when investing money in the stock market, while women are more risk averse.
New research shows men tend to be overly confident, reactive, and eager for short-term gains when investing money in the stock market, while women are more risk averse. "The latest data comes from Vanguard, the mutual fund company. Among 2.7 million people with I.R.A.’s at the company, it found that during the financial crisis of 2008 and 2009, men were much more likely than women to sell their shares at stock market lows. Those sales presumably meant big losses — and missing the start of the market rally that began a year ago. Male investors, as a group, appear to be overconfident, said John Ameriks, head of Vanguard Investment Counseling and Research and a co-author of the study. 'There’s been a lot of academic research suggesting that men think they know what they’re doing, even when they really don’t know what they’re doing,' he said. Women, on the other hand, appear more likely to acknowledge when they don’t know something — like the direction of the stock market or of the price of a stock or a bond. Staying the course and minimizing costs — selling high and buying low, if you trade at all — are the classic characteristics of good long-term, buy-and-hold investors. But during the financial crisis, the Vanguard study showed, men were more likely than women to trade — and to do so at the wrong times."
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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