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Hilmar Zonneveld


Joined in March 2020


What electricity doesn't derive its energy from the sun?

Most of the energy we use on Earth ultimately derive from solar radiation. The exceptions are:

* Nuclear energy.

* Geothermal energy.

* Tidal energy.

So, any power plant that generates energy based on these would NOT derive energy from the Sun.

What is a gasoline engine?

That's an engine that burns gasoline, to produce motion. Many car engines use gasoline as fuel.

What is a action at a distance force?

That refers to a force that acts even when the object involved don't touch one another directly.

Such forces include gravity, the electric force, and the magnetic force.

Why doesn't a pure liquid vaporize all at once when the boiling point is reached?

That's because it requires a lot of energy to convert the liquid to the vapor phase - even for just converting (for example) water at 100 °C to water vapor that is also at 100 °C.

So, for example, once the water is at the boiling point (around 100 °C, depending on the exact air pressure), you need to add A LOT of heat to convert all the water to water vapor; in fact, much more than you needed to heat the water up to 100 °C.