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Tag archives: climate change

A huge cycle in Sheffield, $30,000 for falsifying global warming and another physicist goes into advertising

Celebrating the Tour de France and Hans Krebs in Sheffield (Courtesy: University of Sheffield)

Celebrating the Tour de France and Hans Krebs in Sheffield. (Courtesy: University of Sheffield)

By Hamish Johnston

Sports fans in the UK are spoiled for choice this weekend, with the Wimbledon finals in London and the kick-off of the Tour de France in Leeds. This is only the second time that the famous bicycle race has started in the UK and to celebrate, the University of Sheffield has created a huge image of a bicycle in a field near to the route. But as well as celebrating the passing cyclists, the image honours a very different cycle that makes the race and indeed much of life on Earth possible.

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A new Longitude Prize, global cooling in the 1970s, inspirational creatures and more

A red kite and a drone swoop down on their prey (Courtesy: Vijay Kumar)

A red kite and a drone swoop down on their prey. (Courtesy: Vijay Kumar)

By Hamish Johnston

A bird of prey swoops out of the sky, grabs its victim from the ground and flies off into the distance. It’s what a bird does instinctively, but how could we get a drone aircraft to do the same thing? That’s the subject of one of the papers in a special issue of the journal Bioinspiration & Biomimetics that focuses on “Bioinspired flight control”.

The above sequence of images is from a paper entitled “Toward autonomous avian-inspired grasping for micro aerial vehicles” by Vijay Kumar and colleagues at the University of Pennsylvania. The special issue also includes work on aircraft inspired by flying snakes, flocking birds and incredibly stable moths.

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