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Refraction of Sound

Here is something interesting about refraction. Our school level physics book associates refraction phenomena only with light but not with sound. But the reality is that sound waves also bend. When waves hit a denser medium the speed slows down…

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World Environment Day

WORLD ENVIRONMENT DAY

ENVIRONMENT DAY World environment day is also known as the Environment Day, Eco Day or short form WED. It has been one of the great annual events for years which is being celebrated worldwide by the people aiming to protect…

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nasa

NASA ANNOUNCES NEW EXOPLANET DISCOVERIES

The US National Aeronautics and Space Administration held a press conference today announcing newly discovered Earth-sized planets orbiting a single star in the Trappist-1 system. Three of the seven Earth-sized planets are found within the star’s habitable zone, meaning liquid…

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