Allergy Detection In Advance of Saliva Laser Pointer
The laser pointer is used to irradiate saliva samples to detect allergies in advance. Imbalances in the body's immune system can cause allergies. A variety of autoimmune diseases such as type 1 diabetes and multiple sclerosis. These diseases are currently diagnosed only when they show symptoms. Russian researchers have recently developed a test method. This type of immune system disease can be diagnosed through saliva before symptoms appear.
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Saliva is a type of body fluid. It contains the same immune proteins as the blood. And easy to collect. Researchers at St. Petersburg University of Technology used lasers to irradiate saliva samples. The protein in the sample disperses the light. The laser pointer sensor then records the scattered light.
If the question of how far the light of the laser pointer can travel is correct, as long as the light is not absorbed or scattered in the atmosphere, there is no limit to the correct answer. However, the spread of the beam will eventually increase the area of the beam. Even if the total power remains the same, it will decrease on the screen. Therefore, the airplane pilot will not be disturbed by the remaining small intensity when looking down on this beam from an altitude of 10 kilometers.
2020-01-10 02:35:44
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