Your niece’s New Year’s Eve party is starting. The kids are out dancing to a summer song you don’t even recognize. You push aside the feeling of suddenly growing old and focus on getting a good photo of the show. You think you’ve captured a few worthwhile items; but when you check it, you find that they’re all moving. Your camera’s shutter speed is too slow. This is reality that needs to be captured. moving images the ideal is fast shutter camera. For a children’s party, a good camera that can be found on the market will be enough. However, last year, an international team of scientists managed to develop a camera so quickly that it was capable of catch chaos.
Upon hearing this term, fans Jurassic Park We can’t help but think of Ian Malcolm and his prediction that the facility was “expecting an accident.” Chaos theory, generally speaking, states that a small change can cause much larger and more unpredictable changes in a system. This is even more extreme at the atomic level.
In this case, the term chaos is used to denote dynamic disorderIn short, it is a phenomenon due to which slight vibration or heating It makes atoms move in a certain way at a certain time. It’s hard to understand and even harder to predict. So the fact that it was captured in something resembling a frame was a major achievement. But let’s see how the world’s fastest camera works.
The world’s fastest camera baffles competitors in the market
The fastest digital cameras we can currently find on the market open and close the shutter in about 4 thousandths of a second. This is a type of shutter that is positioned in front of the sensor and captures light from outside just as the image is being taken. If the opening is slower, they say it is very roughthe light comes from several different imagesso the result looks blurry. Like at an end-of-year party. On the other hand, if it opens and closes very quickly, it only captures a moment.
When chaotic motion of particles A regular camera is not enough. Something much faster is needed.
These scientists checked use neutronswhich can measure the positions of atoms instead of traditional photography techniques. The way neutrons enter and pass through a material can be tracked to provide information about the surrounding atoms, with changes in energy levels equivalent to shutter speed settings.
Thanks to this mechanism, the camera was created so quickly that it could open and close its chamber. gate V one trillionth of a second. 250 million times faster than the best cameras on the market.
What is this for?
To test the effectiveness of this fast camera, the researchers attempted to capture the movement of atoms in a material called germanium tellurideIt has very specific properties that allow it to convert waste heat into electricity or electricity into cooling.
Despite knowing these properties, the internal motion of its atoms that contributes to them is completely unknown. This prevents you from taking full advantage of them, so it was a good lens to test this fast camera.
They thought this would help us understand it better, and it did. They saw that at most temperatures it retained its crystalline structure. However, at very high temperatures it showed more dynamic disorderwhere atoms exchange motion for thermal energy along a gradient that coincides with the direction of spontaneous electrical polarization of the material.
This more precise knowledge could be used in many applications, some of which are as interesting as creating new space roversAlthough the study was published last year, this fast camera needs to be further studied to improve its performance. However, with this investigation, he made it clear that chaos may in fact be chaos simply because we failed to see it. We needed a very fleeting moment.
Source: Hiper Textual
