Research boosts efficiency and stability of optical rectennas

The research team that announced the first optical rectenna in 2015 is now reporting a two-fold efficiency improvement in the devices—and a switch to air-stable diode materials. The improvements could allow the rectennas ...

Sticking to the schedule was difficult for Apollo astronauts

No one plans like NASA, and when it came to exploring the moon, the Apollo program was no different. However, even despite their best efforts, the astronauts consistently demonstrated the challenges of keeping to schedule.

Using data mining to make sense of climate change

Big data and data mining have provided several breakthroughs in fields such as health informatics, smart cities and marketing. The same techniques, however, have not delivered consistent key findings for climate change.

Nanostructure boosts stability of organic thin-film transistors

A nanostructured gate dielectric may have addressed the most significant obstacle to expanding the use of organic semiconductors for thin-film transistors. The structure, composed of a fluoropolymer layer followed by a nanolaminate ...

'Hide or get eaten,' urine chemicals tell mud crabs

Psssst, mud crabs, time to hide because blue crabs are coming to eat you! That's the warning the prey get from the predators' urine when it spikes with high concentrations of two chemicals, which researchers have identified ...

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