SciPhi Gyaan

The following are some of the least known facts about the planet Mercury Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington  (CC BY 2.0) Fact-1 Mercury has 2 sunrise and 2 sunset: One of the special feature about mercury is that it can have 2 sunrise and 2 sunset in a Mercurian day. Sun rises, then stops and moves back towards the horizon, then sun again rises. There are many videos in YouTube which shows this beautiful phenomenon.  The reason behind this phenomenon is the long days of mercury and its orbit around the sun. Mercury has the most eccentric orbit of all the planets hence its orbital speed varies as the distance from the sun changes. Also, it only takes 3 Mercurian days for completing 2 revolutions around the sun.  Because of all these reasons sun would appear to move backwards which results in the double sunrise and sunset. Fact-2 Most extreme temperature fluctuation in the solar system Mercury is the planet wi...

Biology quiz  This quiz will be easy. compare your score with the table at the end to know how good you are in biology. check your score see how good you are:- 15-20:-  Outstanding 12-15:-  Excellent 8-12:-  Good 5-8:-  Average 0-5:- Am sure you learned something new😉. Top 8 scary space images:-  click here . Top unknown mercury facts:- click here. Astrophysics quiz to see how good you are in it:-  click here. Loading… scroll up for checking your score Hope you learnt something new from this biology quiz. Biology science.

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Here we are going to look at some of the most asked science questions and answer them in a scientific way. On the way of our journey to understand these questions, I will talk about some least known fun facts.

The bending of light from its straight path due to massive objects is known as gravitational lensing. Sometimes this distortion can look like a ring around the massive body which is called an Einstein ring (see the image below). Credits:-  Lensshoe_hubble.jpg : ESA/Hubble & NASA                derivative work:   Bulwersator   ( talk ) In our high school, we learned that light always travels in a straight line, then you will be thinking how can light bend. What's happening here is that, the space around the object is curved. This is same as how a car/bike turns slowly if the road is slanted. pixabay The ability to bend space around an object increases with mass, hence black holes are a powerful lens. Since the amount of lensing depends on the mass we can use it to weigh clusters, galaxies. Similarly, light travelling closest to its center deviates more compared to the light travelling furthest to its center. This GIF shows lensin...