Trillionth-of-a-Second Camera Captures Chaos in Action
www.sciencealert.com/trillionth-of-a-second-camera-captures-chaos-in-action
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With that in mind, scientists have unveiled a way of achieving a shutter speed that's a mere trillionth of a second, or 250 million times faster than those digital cameras
The researchers are referring to their invention as variable shutter atomic pair distribution function, or vsPDF for short
vsPDF uses neutrons to measure the position of atoms, rather than conventional photography techniques
(GeTe), which because of its particular properties is widely used to convert waste heat into electricity, or electricity into cooling
vital in picking out dynamic disorder from the related but different static disorder – the normal background jiggling on the spot of atoms that don't enhance a material's function
GeTe remained structured as a crystal, on average, at all temperatures. But at higher temperatures it displayed more dynamic disorder, where the atoms exchanged motion into thermal energy following a gradient that matches the direction of the material's spontaneous electric polarization
Better understanding these physical structures improves our knowledge of how thermoelectrics works, enabling us to develop better materials and equipment – such as the instruments powering Mars rovers when sunlight isn't available.
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