“If it’s on the Internet, it must be true.”
– Albert Einstein.
This graphic is wrong on two levels. Firstly, that it a picture of Sir Isaac Newton and NOT Albert Einstein. Secondly, Einstein did not invent electricity, which, as you may know, is a natural property.
The sole purpose of this “joke” is to inform people not to blindly believe things they find on the Internet. There are not many trustworthy sites; after all, they are run by humans who are liable to err. So take everything with a pinch of salt and use common sense!