Time travel is one of the widely discussed topics in the world. When the term ‘time travel’ comes to the mind, people usually think of a machine which can travel to the past or future within a moment. But this is only possible in fantasies or fictions, not in real life. So, is it theoretically or practically possible to travel into different times? Basically we all travel ...
Nature provides us natural resources to generate electricity like natural gas, coal, ocean tides, mountain waves and sunlight. Some of this resources are finite including fossil fuels like coals, natural gas etc. But others are unlimited like solar or wind power. There are some significant processes to turn the resources into usable electricity. Everyday researchers work to find ...
Invention of airplanes is one of the greatest evolutions in the modern communication system. But few centuries ago, this was completely impossible to think. Credits go to the Wright brothers who invented power flight almost one century ago. All their hard works, experiments, researches and dedications become successful and accelerated our world. How does it fly? We see jet ...
Fossils are the ultimate formation of those creatures which lived long ago on the earth. They are buried beneath the earth layers for million years. The creatures transform into fossils and can be used as fuels. Fuel is a source of non-renewable natural energy. People use fossil fuels in driving cars, producing electricity, cooking etc. So, fossil fuels are the inalienable ...
In order to see something, the object either needs to emit light directly like the sun or a bulb or else light has to be reflected from an object into our eyes. An object will be invisible when it is not perceivable by the eye. For this to be possible either light ray should not enter the eye or even if they enter we should not be able to sense it. There are some scientific possibilities ...
Satellite is an space based object that orbits the planet. There are two types of satellites: Natural and Artificial. Moon is a natural satellite of earth that is continiously orbitting the earth. And arificial satellites also orbits earth. They are developed in the purpose of Communicating, Imging, Scientific surveying and Navigation. Satellites have made global communication ...
Depending on where it originates from, the sun, the moon, lightning, certain types of glowing insects, worms and fishes etc. are all example of natural sources of light. While, a candle flame, various types of torches, lamps and light fixtures are amongst the artificial light sources. · Visible light Our sun emits light. Really strong ...
4G stands for fourth-generation wireless cellular service that is almost 10 times faster than 3G network. The 1G or 1st generation was the old analog cellular system. That was obviously super slow. 2G or 2nd generation moves to digital but they were still very much slow, somewhere around 10-200 kbps. The first iPhone was 2G. 3G is a much faster digital and it starts around ...
LiFi or light fidelity is a high speed and fully networked wireless communication technology similar to WiFi. It uses visible light rays to transfer data and is 100 times faster than WiFi. This is because the light has the capacity to transfer vastly more amount of data in a less time compared to radio waves. Method: The ceiling LEDs encode data from internet and decode ...
Since the beginning of the industrial revolution, the demand for energy has increased dramatically year after year. As the world is developing and population is increasing, the rising rate for the demand of energy is very logical. Nuclear power system is one of the widely used energy source in the world. History: It all started in the 1940s. After the shocking disasters ...
Wifi stands for wireless fidelity, a popular technology used to connect to the internet without hardware cables. It also allows devices like laptop, Computer, mobile phones to exchange information. It can also be taken as a synonym of WLAN. Wifi network is built with the help of several hardware components like wireless access points or routers and user devices. Wifi router ...
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