07
2017
-
09
Memory glass-give it everything you can't remember.
Author:
From the appearance alone, it is difficult to distinguish the difference between it and ordinary glass. But it has an amazing "memory" that keeps a record of what's going on around it. The way of recording is not like traditional electronic tools, it is through the change of internal memory molecular arrangement to complete the memory of things. When you need to read the memory, you can use a special translation machine to translate the molecular language into images and display them.
Principle
Will be printed with text and images of the paper cover on a piece of transparent glass, and then use short-wave ultraviolet, X-ray, gamma rays for high-energy electromagnetic radiation, glass can automatically "memorize" these words, images. When illuminated by long-wave light sources such as sunlight, the glass preserved in the dark background can still reproduce text and images.
Research
As early as 1996, physicists at Harvard University in the United States envisioned writing information into a durable, transparent material similar to glass. Glass can resist high temperature baking, chemical corrosion and mechanical damage, and even bulletproof function. Scientists have made great efforts to realize this idea. It is not that glass is difficult to make, but that the laser beam is difficult to control accurately. If you don't pay attention to it, the tiny patterns carved will be wrong. Fortunately, this problem has been solved. As soon as a Japanese company heard about this result, it was eager to seize the opportunity to use this technology in fused silica (a glass-like material) to develop new information storage products, which it plans to introduce to the market in the next few years.
The British physicist Kazansky was also interested in the technique. He considered whether he could carve a notch on quartz with five kinds of information at the same time, that is, it not only reflects the change of three-dimensional space (length, width and depth), but also records the intensity and polarization of the incident laser pulse. In this way, the information storage density is 8 times higher than that of this Japanese company, and terabytes of information can be stored on quartz materials the size of fingernails, that is, 5 million books of 100000 words each can be stored, which can almost fit a large library into two "nails". Moreover, Kazansky speculated based on the test results that the information stored in this material can withstand a high temperature of 1000 ℃, can escape the damage of nuclear explosion, can be safely stored for 10 billion years, and its life span is almost the same as that of the universe, with the sun and the moon.
Role
After the memory glass technology is put into practical application, the police can track the whereabouts of the criminal several years ago in a "nail. In addition, the weather station can track the changes on the earth in the "nails", and future human beings and even aliens can also use this technology to understand the living conditions and civilization achievements of our generations.
After the "light storage" technology is further mature, the application prospect of this glass in the high-tech field is unlimited.
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