When the light is neither 'on' nor 'off' in the nanoworld

Whether the light in our living spaces is on or off can be regulated in everyday life simply by reaching for the light switch. However, when the space for the light is shrunk to a few nanometers, quantum mechanical effects ...

How to reverse unknown quantum processes

In the world around us, processes appear to follow a certain time-direction: Dandelions eventually turn into blowballs. However, the quantum realm does not play by the same rules. Physicists from the University of Vienna ...

Mini-engine exploits noise to convert information into fuel

Too much background noise is usually guaranteed to disrupt work. But physicists have developed a micro-scale engine–made from a glass bead–that can not only withstand the distracting influence of noise, but can harness ...

Scientists reveal how detergents actually work

Scientists have discovered the precise way detergents break biological membranes, which could increase our understanding of how soaps work to kill viruses like COVID-19.

How stressed-out plants produce their own aspirin

Plants protect themselves from environmental hazards like insects, drought and heat by producing salicylic acid, also known as aspirin. A new understanding of this process may help plants survive increasing stress caused ...

The quantum field theory on which the everyday world supervenes

The laws of physics underlying everyday life are, at one level of description, completely known, and can be summarized in a single elegant—if quite complex—equation. That's the claim physicist Sean Carroll, an SFI Fractal ...

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