Monthly Archives: September 2017

Who invented headphones?

pic credits:coolmaterial The first headphones were invented by American engineer Nathaniel Baldwin in 1910. His invention was the end result of experimentation with the principle of sound amplification by compressed air. Baldwin patented and then sold his invention to the U.S. Navy. pc:pinterest The sensitivity of Baldwin’s headset, tested by engineers of the Radio Division of […]

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20 Things You Didn’t Know About… Fire

Fire makes water. Fire is a tree running in reverse. Fire is not a thing at all By Leeaundra Keany pc: pavelk / Shutterstock 1  Fire is an event, not a thing. Heating wood or other fuel releases volatile vapors that can rapidly combust with oxygen in the air; the resulting incandescent bloom of gas further heats […]

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GPS

 Whats is GPS?  How does it work?   Pic credits: shutter stock What is GPS? The Global Positioning System (GPS) is a space-based navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.[1] The […]

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Echo

Whats echo? pic credits:dkfindout.com Generally everyone knows that its nothing but reflection of sound.Lets see whats it in detail but briefly.                                                                      […]

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Heat

Heat pic credits: publicdomainpictures.net Heat is the opposite of cold. In thermodynamics heat means energy which is moved between two things when one of them is hotter than the other. Adding heat to something increases its temperature, but heat is not the same as temperature.The temperature of an object is a measure of the average speed of the moving particles in it. The energy of […]

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What’s A Hurricane?

So What’s A Hurricane? A hurricane or tropical cyclone is a powerful storm that forms in the ocean and causes destruction when it hits land. These monsters are gigantic inward swirling storms, and their winds move at a speed of 75 mph (120 kph) at the least. A hurricane can happen anywhere in the world, but most occur around […]

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Friction in our daily life

Yes, friction is must and mandatory. Whats friction? It is a force which opposses the relative of two surfaces to be in contact. Imagine a scenario where there is no friction on the ground. You are driving a car and suddenly encounter a child lying on the road. What would happen? He will be crushed […]

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Scientists create fuel using air

Scientists have found a way to produce methanol – an important chemical often used as fuel in vehicles – using oxygen in the air, an advance that may lead to cleaner, greener industrial processes worldwide. pic credits: caradvice.com Scientists have found a way to produce methanol – an important chemical often used as fuel in vehicles […]

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Why our eyes hurt looking at welding arcs?

People misunderstand the inverse square law: the intensity on your retina does not drop with distance until you cannot resolve the object any longer When you are close enough to resolve the arc, the intensity on your retina is constant regardless of distance. This is due to the same reason that trees in the distance […]

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