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Mainstream science’s assumption that human habitation of the North American continent began toward the end of the last ice age, about 13,000 years ago, when the ice sheets that covered the northern end of the continent began to recede, allowing humans to cross the Bering land bridge from Asia. Controversial findings from various sites around the Americas suggest an even earlier migration, with humans apparently having been in what is now Florida 14,500 years ago, and in Chile 18,500 years ago. But a new discovery in Southern California may require science to move the generally-accepted date over by a full decimal point, as remains have been unearthed there that have been found to be 130,000 years old.
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An engineering research team in Japan has developed a new solar cell that may be able to raise the efficiency of photovoltaic cells above 50 percent, and theoretically as high as 63 percent under certain conditions. This is important as consumer-grade cells are hindered by a lower maximum efficiency of around 26 percent, with most cells on the market only boasting an efficiency of 12 to 18 percent. If that value can be improved, it will make for greater accessibility for consumers looking toward renewable energy sources, and drastically improve the output of commercial solar farms.
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