Ion Engines - Lesson 1
Before you begin playing with the Ion Engine simulations, it's a good idea to learn something about electric
charges. There's really not much to know!
First, electric charges come in two flavors:
Most things in the world have the same number
so they are called neutral.
If something has more
than , it's
called Positively charged.
The more extra charges something has, the bigger we draw it. So, we'll draw something with lots of
Positive charge like this:
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