A solar-powered airplane finished crossing the United States on Saturday, landing in New York City after flying over the Statue of Liberty during its historic bid to circle the globe, the project team said. The spindly, single-seat experimental aircraft, dubbed Solar Impulse 2, arrived at New York's John F. Kennedy International Airport at about 4 a.m. local time after it took off about five hours beforehand at Lehigh Valley International Airport in Pennsylvania, the team reported on the airplane's website. Such a pleasure to land in New York! For the 14th time we celebrate sustainability," said the project's co-founder Andre Borschberg on Twitter after flying over the city and the Statue of Liberty during the 14th leg of the trip around the globe. The Swiss team flying the aircraft in a campaign to build support for clean energy technologies hopes eventually to complete its circumnavigation in Abu Dhabi, where the journey began in March 2015. The solar cr...
New research suggests that chimps have most of the mental capabilities needed to cook food. This suggests that the ability to cook food is deep seated and may have arisen in human ancestors millions of years ago. The conclusions also indicate that humans may have developed the ability to cook very soon after they learned how to control fire. The study has been published in one of the journals of the Royal Society.Surprising as it may seem, even boiling an egg requires advanced mental skills. Whereas other animals tend to start eating whatever food they find or hunt straight away, humans can store and cook their food, even if we are fairly hungry, because we know that if we wait what we eventually eat will taste better.
Instead, Dr Warneken carried out a series of experiments to test the individual cognitive skills the chimps needed to be able to cook. He looked to see if they preferred cooked rather than raw food, whether they could wait until raw food could be cooked and if they would put raw food into a box that scientists switched for cooked food. He found that they passed all these tests and more.
So why don't chimps cook? Not being able to control fire is one
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