Military researchers are developing self-destructive material that & # 39; disappears in an instant & # 39; to perform secret missions without leaving traces
- A new polymer can disappear when it comes into contact with sunlight or by pressing a button
- Researchers say it can be used for secret military operations
- The polymer could be used as a delivery vessel and then quickly disappear
A special type of polymer that can disappear without trace is tested by the US government.
Scientists say that the material, made by American Chemical Society researchers on behalf of the Department of Defense, can be used to deploy electronic sensors and to secretly deliver military equipment by delivering packages and leaving no sign that the device was once there.
& # 39; This is not the kind that slowly deteriorates over a year, such as the biodegradable plastics that consumers may be familiar with, & quot; said Paul Kohl, a physician whose team developed the material.
& # 39; This polymer disappears in an instant when you press a button to activate an internal mechanism or the sun falls on it. & # 39;
To achieve the rapid transition from a solid state to decomposition, researchers say they are a type of polymer with a & # 39; low ceiling temperature & # 39; which means that the bonds break apart quickly when they exceed a certain threshold.
In this case, scientists used a photosensitive catalyst to initiate the degradation of polymers, meaning that once the material is exposed to sunlight, it begins to disappear.
This would theoretically allow an employee to send the polymer & # 39; out overnight, without leaving traces when the sun rises.
With this method, the researchers say that they could also adjust the timing of degradation to create materials with a longer shelf life.
"We have a way to postpone depolymerization for a certain amount of time – one hour, two hours, three hours", Kohl said in a statement.
& # 39; You would keep it in the dark until you use it, but then you would use it during the day and have three hours before it decomposes. & # 39;
Scientists have pursued the formation of a polymer that can disappear quickly, but failed due to their instability at room temperature
Yet another version is made to be sensitive to fluorescent light, making the material practical for indoor missions.
Scientists have tried for years to make such a material, but failed due to the instability of the polymers at room temperature.
However, by removing impurities from the substance before synthesis, they say that the polymer was more durable than its predecessors.
Although the polymer is already incorporated into military technology, researchers say it may also have other more civilian or commercial applications.
Among them, they mention the potential for use as a temporary epoxy used in construction or for use as delivery vans to areas where recovery is difficult.
WHAT ARE THE MAIN STATES OF THE SOLAR ENERGY DRONE?
Engineers from defense giant BAE Systems and the Farnborough-based company Prismatic are developing a solar powered Unmanned Aerial Vehicle (UAV).
Known as Phasa-35, the aircraft could someday be used for surveillance and provide vital communication to remote areas.
These are the most important statistics of the UAV:
– Maximum flight length: 12 months non-stop
– Height: Between 55,000 and 70,000 feet (17,000 to 21,000 meters)
– wingspan: 115 feet (35 meters)
– Weight: 150kg (330lb)
– Driven by: Lithium ion solar panels
– First test flight: 2019
The concept vehicle has a wingspan of 115 feet (35 m) and weighs only 150 kg (330 lb) – a lightweight construction that allows it to fly at high altitudes for a long time
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