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What are Advantages and disadvantages of using photocells to generate electricity?

The good reasons of having a photocell in a park are that it can be left alone once set up, can get energy for free (form the sun), it can store energy for long periods of time, but were there are advantages there are also disadvantages, which are it doesn't gain as much power at night or in low light conditions, its expensive to buy/ get set up. hopes it helped :)


What is the Impact of technology on security?

Technology has had a significant impact on security at all levels. With advancements that take place in technology it is possible to create security products that virtually undetectable and allow for a truer result. You can view security footage live from most mobile devices.


What technology is used to study avalanche?

your mom is used by the way I had your mom over last night it was fun


Why is infrared used in night vision technology?

Answer Most visioning systems, the unaided eye, regular cameras, and even night vision googles all rely on there being a source of light shining on whatever you wish to see, and some of that light bouncing off the object, and back into your eye. The systems usually referred to as Night vision are usually based on light amplification, and doesn't work in absolute darkness. Even the best ones needs a tiny bit of light to work with. (Passive) infra red works in a completely different way. All things that are warmer than absolute zero radiates some thermal energy - heat radiation, in the area of wavelengths called infrared. If you have a device sensitive enough to these wavelengths, you can then see your surroundings by the radiation from the temperature differences between different objects. (Passive) IR does work in total darkness, as long as there are enough temperature differences in the scene. You could bring it down into a deep cellar, or a cave, and you'd still see something. As a separate sub-set there are Active IR systems as well. These work pretty much like regular visioning systems, only with the illuminator and the viewer shifted out of the range of the unaided Eye. Answer infrared rays lie in that part of light spectrum that is invisible to human eye, however some highly sensitive light sensors detect infrared rays, so these rays are used in night vision cameras and binoculars. these rays are focussed at some object that has to be viewed. the infrared sensors detect the reflected rays from that object and this is how we can see in the dark using these rays. Answer because it enables you to see warm objects, so if, for example, somebody was lost on a hill, in the dark, you would just have to scan for a hot human shaped blob, instead of using torchlight


What technology helps to find out more about stars and planets?

Usually, the telescope, the Hubble Space telescopes are some examples or telescopes. There are ground ones and also ones that are launched into space. There are also rocket launches. They are basically, space shuttles/space ships that are launched into space to capture pictures, and used to take astronauts up there to study more about space. Star charts are another example of technology that are used to study the night sky.Scientists use it to record down the exact mark of where the stars are...not really something that is tootechnical. Satellitesare also used in these situations, too. They can take pictures, get closeups towards planets, etc.

Related Questions

Do night vision goggles have any disadvantages?

yes


What is the advantages of night vision?

To see in the dark


What are some advantages of night vision devices?

Because humans have poor night vision.


The advantages to prestige in modern warfare 2?

You get night vision goggles!


What does a telescope do to improve your vision of the night sky?

It magnifies the available (ambient) light. Night-vision technology amplifies available light by as much as 40,000 times.


Who invented night vision technology?

Night vision technology was developed by a variety of researchers and engineers over the years, with significant contributions from individuals such as Vladimir K. Zworykin, A. H. Caris, and Jack Cover. The first practical night vision devices were developed in the 1930s and 1940s for military use.


Understanding Night Vision Technology?

Night vision dash cams utilize specialized technologies to capture clear footage in dark environments. The most common technology used in these cameras includes infrared (IR) sensors and advanced image processing algorithms. 


Night vision technology I want to give presentation on this topic. So tell me everything about this technology.?

"Night Vision" technology is actually called light amplification technology. If it is pitch black and light is completely absent it will be pitch black in the goggles. The ratings on specific devices are different, but no matter what they all require some kind of light source.


Do night vision technology exist in India?

Yes its available in India. The military uses it all the time


What is the definition of night vision goggles?

Night vision goggles use special technology to amplify the tiny amounts of natural light that's usually always around into levels that our own eyes can use.


What are the advantages and disadvantages of infared waves?

Advantages: Infrared waves are non-ionizing, making them safer for human exposure compared to other types of radiation like X-rays. They are also widely used in applications such as remote controls, night vision technology, and thermal imaging. Disadvantages: Infrared waves have limited penetration capabilities, meaning they cannot pass through opaque objects. This limits their use in certain applications such as medical imaging. Additionally, exposure to high levels of infrared radiation can still cause skin burns or eye damage.


Which type of waves are used for night vision apparatus?

Infrared waves are used for night vision apparatus to detect heat emitted by objects or living beings in the dark. Night vision technology converts infrared radiation into visible images, allowing users to see in low-light or completely dark conditions.