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How to measure how long Fidget Spinner rotates without a clock
Why? Because obviously the watch is not available but the laser device and light sensor are sold in the market.
Laser
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Articles about Laser
501 published items.
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New technology: Mine detection with 'bacteria' sensor
Israeli researchers introduced a new mine detection system that uses a combination of lasers and bacteria to remotely detect the location of unexploded, unexploded antip…
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Creating super fluid, pushing forward will accelerate backwards
Researchers in the US say they have created a liquid with a negative volume in the laboratory ... which is almost unreasonable, when you push this liquid forward it will…
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X-rays allow you to see small nanometer-sized edges buried deep in the CPU
Advanced technology is applied to detect errors before putting a new CPU on the market.
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What does the world do to limit aviation accidents caused by birds?
Laser beam shooting, trapping, grass planting, flower planting, dog farming ... are methods used by many airports around the world to minimize incidents of bird collisio…
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People can create gravitational waves
The gravitational wave monitoring station (LIGO) publishes the greatest scientific discovery of 2016. That is how people can create gravitational waves.
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Can measure time without clock
French scientists have recently discovered a way to measure the delay of time while photovoltaic emission without the use of a clock (a very small fraction of time).
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Can flash light cause infant blindness?
Although the infant's retina is incomplete, the intensity of the light from the flash is not really high, and even for a brief moment, it cannot cause such a serious inj…
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Scientists create matter and antimatter by light
A team of researchers from the Institute of Applied Physics at the Russian Academy of Sciences (IAP RAS) has announced that they have calculated how to create matter and…
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How far can lasers be?
According to an aviation security officer, green laser lights can light the lights on the aircraft, affecting pilots driving airplanes.
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Does the laser threaten pilots and planes?
Normal portable laser projectors are extremely dangerous for pilots, threatening safety to fly in the United States as well as many other countries, the act of shining l…
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Learn speed gun: Shot without pain but losing money
Speed gun is a specialized device of Traffic Police (Traffic Police) which is popularly used not only in Vietnam but also in many other countries.
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You will be surprised to know that technology today can do this
The development of technology can be said to be no limit. 100 years ago, who dared think TV would be everywhere like today?
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Stunned by the decoded scientific phenomena
Have you seen the process of snake venom affecting human blood or laser image erasing the tattoo? Check out these interesting pictures!
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How many laser pens are needed to make killer weapons?
Although the 5mW laser pens, you will have to pair 200,000 units to create a dangerous gun.