Q.1)Tell me about can we cross the space what happened if we go upside up from space??????
what happened ?????
Q.2)Tell me about dyanamo
Answers
Q.1)There is an up and down in space. "Down" is simply the direction gravity is pulling you, and "up" is just the opposite direction. Since there is gravity everywhere in space, there is also an up and down everywhere in space. Gravity is a centrally attractive force, so "going down" means falling or being pulled towards the center of the nearest massive object. If you are in space and the earth is the nearest astronomical object, you fall towards earth.
Q.2)Dynamos and Generators convert mechanical rotation into electric power. Dynamo - a device that makes direct current electric power using electromagnetism. It is also known as a generator, however the term generator normally refers to an "alternator" which creates alternating current power.
1) Going outside the atmosphere, Inshort in the exosphere can be dangerous as the amount of oxygen required by humans is very less there and hence, oxygen cylinders should be cairred along.
2) the dynamo theory proposes a mechanism by which a celestial body such as Earth or a star generates a magnetic field. The dynamo theory describes the process through which a rotating, convecting, and electrically conducting fluid can maintain a magnetic field over astronomical time scales. A dynamo is thought to be the source of the Earth's magnetic field and the magnetic field.