Excerpt From The Mad Scientist’s Handbook: So You’re Ready to Vaporize a Human

In Chapter 4* we discussed the proper maintenance and operation of
energy weapons such as plasma rifles and Tesla cannons. In this chapter,
you will learn how to direct those beams and blasts like a true mad
scientist! (See Chapter 9 for “The Dos and Don’ts of Maniacal Laughter:
Part 1″.)

“As any successful mad scientist will tell you, energy ain’t free.
Popular culture tends to forget this, instead focusing on the
destructive capabilities of our finely crafted death rays without noting
the massive energy expenditures required to use them.”

http://blogs.scientificamerican.com/but-not-simpler/2013/09/12/excerpts-from-the-mad-scientists-handbook-so-youre-ready-to-vaporize-a-human/