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Anna Demming reported via Scientific American: (A) although there is no way to fertilize an egg, with some careful experiments in simple processes, researchers have been able to turn back time. The trick is to create a kind of imagination. First, consider a common optical image, such as an image you see in a silver mirror. This is where the experiment occurs because for a light beam, silver is a completely different medium than air; the sudden change in properties causes the light to bounce back, like a Ping-Pong ball hitting a wall. So, instead of changing at certain points in space, the specifics in the path of the ray actually change at a certain point in time. Instead of receding through space, light will recede through time, retracing its path, like a Ping-Pong ball returning to the last player it hit. It is a “reflection of the times.” Time reflection has fascinated designers for years but has proven to be a nightmare to pull off in practice due to the rapidity and rapidity with which things change. Specializing is no small task. However, now, researchers at the City University of New York have revealed a problem: the creation of knowledge-based time models. To do this, physicist Andrea Alu and her colleagues created a “metamaterial” with flexible materials that they can manipulate in fractions of a nanosecond. light is four times or twice as fast. Metamaterials have properties determined by their structure; many are made of artificial or light plant sequences that can be heard to interact and use light in ways that nothing natural can. Bringing their strength to bear on time, Alu said, showed some surprising results. “Now we know that (reflection time) can be more economical than we thought because of the way we implement it,” he added. (…)
The device, developed by Alu and his colleagues, is a mechanism that emits microwave light. Most of the switches on the waveguide are connected to capacitor circuits, which can add or remove material for light to be transmitted. This can change the properties of the waveguide, such as how easily light can travel. “We’re not changing materials; we’re adding or subtracting materials,” Alu said. “That’s why the process can be so fast.” Reflections of time come with many side effects that have been widely recognized but have not yet been brought to light. For example, what is at the beginning of the first sign will be the end of the sign – a situation like looking at yourself in a mirror and seeing the back of your head. Also, while conventional photography changes the way light travels through space, time photography changes the physical aspects of light – that is, its lines. As a result, in a time trial perspective, the back of your head is also a different color. Alu and his colleagues observed both effects in the team’s machine. Together they hold promise for driving further advancements in branding and communications — two areas that are critical to the performance of, say, your phone, which depends on effects like line switching.
Just a few months after developing the device, Alu and his colleagues noticed even more surprising behavior when they tried to make a picture of time in that direction while shooting two beams of light at each other inside. Colliding light rays behave like waves, creating interference waves that add or cancel their peaks and troughs like waves. on water (in the case of “creating” or “destroying”. But in fact, light can act like a letter, a photon, as well as a floating wave – that is, there is “double-wavelength.” Usually a particular display will clearly show only one behavior or the other, however, for example, rays Colliding light doesn’t bounce off each other like billiard balls! But according to the research of Alu and his team, when you have a moment to think. , it seems they do. The researchers achieved this curious effect by controlling whether the traveling waves interfere or cancel each other out – or add to or subtract from each other – when the time image occurs. scientists show that the two waves bounce off each other in many waves from where they started, like billiard balls colliding, on the other hand can result in less energy, like the spongy balls recoil, or gain energy. as is the case for the balls on both sides of the stretched spring. “We can do these interactions to conserve energy, conserve energy or energy retention,” said Alu, showing how the thinking of the time could provide a new computer to control applications involving energy conversion and pulse generation, which changes the shape of a waveform to satisfy the pulse signal.