source An article caught my attention the other day and it is fascinating what is taking place behind the scenes with regard to saving fuel costs. Not only the fuel costs but the amount of carbon emissions

It took me a while to decide in which community should I post this one because frankly, I couldn't fit it in any of the usual communities that I post to. Proof of brain seems to be the most suitable one.

Energy, what is the energy content of various forms of energy we use? Confused about energy and cost per unit of energy, maybe, maybe not, but here goes: Most common energy form you likely are familiar