• 13/06/2024 12:59

Time can “go backwards”: scientists talk about a unique experiment

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This information was reported in Science Alert, reports URA-Inform.

What research was conducted?

This experiment provides the first physical evidence of the reversibility of time measurement based on the properties of materials. From a scientific perspective, time is a manifestation of the second law of thermodynamics, which describes the tendency of isolated systems to become less ordered over time. This is due to constant changes in the configuration of molecules in various non-crystalline substances, including polymers and amorphous solids such as glass.

What was happening?

These substances reach a theoretically stable state according to their entropy clock, creating a kind of «theory of relativity» based on changes in the ordering of molecules. Scientists describe this indicator of aging as «material time». Despite the existence of this concept since the 1970s, its experimental measurement in the Narayanaswami Instrument formalism has not previously been carried out due to the slow aging process of glass, which is difficult to observe.

As part of the experiment, the researchers used a highly sensitive video camera to recordings of scattered laser light that creates interference patterns when exposed to glass. These patterns were statistically interpreted as vibrations conveying features of material time in three different glass-forming substances.

Bottom Line

The results showed evidence for the reversibility of time at the molecular level, where particles interact, push and pull each other, changing their configuration. This study does not suggest the possibility of completely restoring the aging process of materials, but it expands the understanding of how materials interact with time at the molecular level.

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