Laser Pointer turned Thousandfold Microscope
On 07/25/2016 at 07:51 AM by Eyes123456 See More From This User » |
Laser Pointer turned Thousandfold Microscope
Some say a thousand 30000mw laser pointer can transform microscope? Microscope is a wonderful thing, it can take you to see the world, thousands of microscopic scene. In fact, can be seen without a microscope microscopic world inside the object, you only need a green laser pointer can be, that this is how to do?Experiment Procedure:laser pointer after irradiation droplets, borrow a microorganism.
Experimental Preparation: three unopened medical syringes, Digital Square West in round spend 80 yuan to buy a burning laser pointers, two cups, water, water tank, drinking just bought a bottle of distilled water.
Experimental Procedure: First prepare 3 parts of water samples, namely water, drinking water and distilled water tank. It was also a need to be able to support and fixing the syringe shelves, reporters got two normal cups and pour in Sheung Shui and vinegar, to increase their weight and color to distinguish with the syringe. Then, the transparent tape two white paper posted on the wall as a projection screen.
Then with three syringes were from 3 samples of water extracted some water down the barrel mouth hung vertically in the middle of the two cups. Then slowly introduced a drop of water from the barrel, let drops as large as possible and will not drip, it hung in the mouth of the barrel. Next, adjust the position of the green laser pointers, laser pointer will be placed near the rear drops about 20 cm, so that beam right through droplets, can project a large-sized image is formed on white paper.
Experiment Results:
1.Running water: water droplets irradiated green laser 5000mw, you can see the green glow on the screen, there are some black dots dangling.
2. Water tank: in laser pointer beam irradiation can also be clearly seen swimming around the small circular black object. And black circular object in the water tank swimming faster rate than tap water, and the number of more than tap water.
3. Distilled water: distilled water under the irradiation of a laser pointer, and did not see anything.
Tips:
Why appear circular object?
There are refracted light beam passes through the water droplets.
Why laser pointer 3000mw can be seen through water droplets swam magical picture of it?
Nanchang University Pu'er Enrollment Zhouyuan Kang believes that drops with a certain curvature and tension, and the middle thick edge is thin, the equivalent of a natural lens. Laser pointer beam is relatively concentrated, water drops will occur through the refraction. "Magnifying glass beads having a certain function, after it rains, it can be clearly observed in the context of the blade through the water droplets on the leaves."
Why are circular saw microbes, and microbes under a microscope to see the difference?
He said that although some of the droplets have a magnifying glass function, but much lower than the multiples zoom microscope, so I can not see the details of microorganisms, can only see a rough image.
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