How fast the satellite revolves the earth

The satellites revolves the earth every 90 minutes average about 16 times a day

which are at an LEO (Low Earth Orbit) altitude of 400km from above sea level it is moving at a speed of 8 km/s to stay in orbit and against gravity .Gravity at this altitude is around 90% of Earth gravity

An object revolving the earth fall 5 meter in every 8km of rotation so for that satellites, ISS are maintained at 8km/s speed.

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Interstellar Movie Mann's planet Frozen clouds explained

In the movie when the crew descend to Mann's planet the ranger scrap the edge of an ice clouds. These clouds are largely frozen "Dry ice"(solid form of carbon-di-oxide) the reason why Mann's planet is too cold is, it orbiting the gargantua(black hole) at an over elongated path, the planet swings close(inward journey) around the gargantua and flies out to a large distance(outward journey) and come close around and flies out again, In the movie when the crew desecend to land Endurance is at extreme end of the orbit (outward journey) and after docking scene endurance comes closer to the gargantua; it shows that the Mann's planet mostly away from the accretion disk of gargantua; oribtary of Mann's planet around gargantua Mann's planet is cold and ...

How to calculate age of tree using ring without cutting

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Why Auto-rickshaw tyres are tilted

Why Auto-rickshaw tyres are tilted Many times we saw auto tyres are tilted slightly about 1-3° vertical it is called Camber Camber is are three types 1.Positive Camber 2. Negative Camber 3.Neutral Camber When the auto-rickshaw is unloaded the tyres will look tilted when it is fully loaded with passengers the tyre inclination will become straight. It also help to withstand heavy load during traction and avoid tyre wearing during running Negative Camber are used in off-road vehicle like tractor

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