Can Nano Breakthrough Revolutionize Solar Power?
A new method for extracting energy from solar panels will allow expensive silicon semiconductors to be replaced by much cheaper metals, making the energy source more cost effective.
What's the Latest Development?
A new way to extract electrical current from semiconductors may revolutionize solar power, finally making photovoltaic cells an affordable alternative to fossil fuels in the short run. A new method of 'doping', a process in which a chemical coating is applied to solar cells in order to extract power from their semiconductors, has been developed by a research group at Lawrence Berkeley National Laboratory and University of California at Berkeley. Using graphene, a one-atom-thick material that is highly conductive, researchers have replaced the usual chemical coating with an electrical field.
What's the Big Idea?
Because chemical doping works only with silicon semiconductors, designing electrodes to allow an electric field to pass through and dope the semiconductor will allow the semiconductor to be manufactured from far less expensive materials, including metal oxides, sulfides, and phosphides. In addition to graphene, the team also experimented with extremely narrow nanowires to create the electric field. Researchers are optimistic about these discoveries' abilities to revolutionize solar power because they can be implemented using simple and cost-effective tweaks to current manufacturing processes.
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Researchers discover a link between nonverbal synchronization and relationship success.
- Scientists say coordinating movements leads to increased intimacy and sexual desire in a couple.
- The improved rapport and empathy was also observed in people who didn't know each other.
- Non-verbal clues are very important in the development stages of a relationship.
Humans evolved to live in the cold through a number of environmental and genetic factors.
- According to some relatively new research, many of our early human cousins preceded Homo sapien migrations north by hundreds of thousands or even millions of years.
- Cross-breeding with other ancient hominids gave some subsets of human population the genes to contend and thrive in colder and harsher climates.
- Behavioral and dietary changes also helped humans adapt to cold climates.
Could this be the long-awaited solution to economic inequality?
Under capitalism, the argument goes, it's every man for himself. Through the relentless pursuit of self-interest, everyone benefits, as if an invisible hand were guiding each of us toward the common good. Everyone should accordingly try to get as much as they can, not only for their goods but also for their labour. Whatever the market price is is, in turn, what the buyer should pay. Just like the idea that there should be a minimum wage, the idea that there should be a maximum wage seems to undermine the very freedom that the free market is supposed to guarantee.
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