'Smart' materials

* Material that can change hardness and elasticity : Scientists have taken fine gypsum powder, limestone powder and fine coal, mixed it into olive oil and some water and put it in a shaking machine, shaking and shaking For a long time, making oil and water two things that would not be in harmony with each other, now must be intermingled together, blending together to become a viscous-plastic liquid solution but still liquid.

The solution is passed through a strong electric field to turn into a solid. Depending on how strong or weak the electric field is, this solution turns into a solid or fast form. This phenomenon also happened in the opposite direction.

The aforementioned physical phenomenon is called ' rheology '. People think of using rheostat power to build a car's brake set. If using this rheeless electric brake, the driver only needs to press the electric button to create the magnetic field for the solution, then the car brakes only after a few milliseconds. Electrically charged materials can change hardness, shrinkage, and stretch like an animal's body every time the field changes. This property opens a great prospect for the aerospace and aerospace industry in the future.

* Materials known in advance of construction works : In the process of building high-rise buildings, bridges and dams, hydroelectric dams . they are attached to their structures with fiber optic cables sensitive to mechanical pressure. to monitor the progress of the project regularly. If there are signs of slump, subsidence, tilt . optical cable will notify the user to prevent and take measures to reinforce in time. In this case, people often call it ' detection ' to attach to the heat supply network, electric network station, petroleum pipeline system, or in the automatic system of the production line . Information of ' detectors ' connected to the computer, with the function of analyzing information and automatically selecting solutions to handle changes in the environment there.

* Navigation material:

Scientist Wilhelm Barthlott (Photo: dbu.de)

People apply a discoloration to the border line of the road. This substance will turn red when the weather is bad to warn the driver that this track is in a slippery state, easy to slip, and easily to overturn the car. When there is no longer a risk of slippery, it returns to its old ash gray color. Scientist Wilhelm Barthlott, who discovered the dust-free and dust-free mechanism of lotus leaves, created a dust-free, smart, non-wet fabric . He hopes one day, thanks to this mechanism. but humans will build houses that are not dusty, glass surfaces that are not blocked by dust.

* Non-dust cloth:

* Air-conditioning fabric: Self-heating for the wearer when icy, self-cooling when hot, changing the size when the temperature changes (for example, fabrics mixed with nickel, titanium and nylon, When hot, this fabric's sleeve shrinks to its elbows, when the temperature drops a few degrees, the sleeves are stretched out again.