Our Moon is receding from us by about 3.8 cm a year. The conventional explanation for this is that the energy required to produce the tides of the Earth’s oceans translates into
Conventional science maintains that planets are formed through a process in which gravity pulls dust and interstellar matter into a large number of
Mars has a diameter that is only a little more than half that of Earth. Surface gravity on Mars should therefore be a little more than half that of Earth, assuming that Mars and Earth
The word “and” is normally associated with addition. If Jack has three apples and Jill has four apples, Jack and Jill have seven apples all together. If Jack pulls a pale up a hill
Time goes a little faster on Mercury than it does on Earth. This is why Mercury makes its rounds around the Sun a little quicker than predicted by Newton.
Energy is the capacity to do work, and by work, we mean moving things around.
When I pick up a wood block from the floor, I do work in order to put it on a shelf. Energy is transferred