When Geoffrey Coates, a professor of chemistry and chemical biology at Cornell University, gives a talk about plastics and recycling, he usually opens with this question: What percentage of the 78 million tons of plastic used for packaging – for example, a 2-liter bottle or a take-out food container – actually gets recycled and re-used in a similar way?

The answer, just 2 percent. Sadly, nearly a third is leaked into the environment, around 14 percent is used in incineration and/or energy recovery, and a whopping 40 percent winds up in landfills.

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Scientists led by a team at Caltech have developed a new method for potentially removing nearly all sulfur compounds from gas and diesel fuel.

Sulfur compounds in fuels such as gasoline and diesel create air pollution when the fuel is burned. To address that challenge, large-scale oil refinery processes remove the majority of sulfur from fuel down to a government-mandated level. The new technique, however, has the potential to reduce sulfur down to a fraction of that amount, which would further reduce air pollution and extend the lifetime of vehicles' catalytic converters, which control tailpipe emissions.

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The tin foil hat, while fashionable, is an ineffective way of keeping the government’s radio waves from infiltrating and manipulating your mind. In fact, the hat may boost certain radio frequencies, which is OK because there’s no such thing as mind-controlling waves anyway.

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New research from North Carolina State University offers insights into how far and how fast cyborg cockroaches – or biobots – move when exploring new spaces. The work moves researchers closer to their goal of using biobots to explore collapsed buildings and other spaces in order to identify survivors.

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