Let's file this post under "mistakes that Rhett made that he doesn't want to make again." If I don't write it down, I won't learn from my mistakes. How about I start this with the following problem.

Potential energy is stored energy. Potential energy is the energy that exists by virtue of the relative positions (configurations) of the objects within a physical system. This form of energy has the ...

Inspired by Galileo Galilei, in 1656 Christiaan Huygens invents pendulum clock. Through 18th and 19th centuries until 1930s, these clocks are precise time keepers. They use weights with escapement ...

Unfortunately for previous cosmological theories, the universe appears reasonably convincingly to be expanding at an accelerating rate. This, all physicists know, is no small problem. It is so severe ...

This is sort of awesome. It's a concrete gravity battery. What? Yup. The idea is to even out the balance between power generation and power usage; like with any battery, this one allows you to store ...

The Principle of Conservation of Energy states that energy can be changed from one form to another but the total amount of energy does not change. Energy is measured in joules (J) and 1 J is ...