Can i transfer Iphone 5's power to a laptop?

My computer was at a critically low Power supply and i though maybe you can somehow transer Iphones 5s power supply to my laptop, it's a simple matter of reverse engineering the:
computer's power > Iphone's Power / Iphone's Power > Computer's Power. Is it possible?

Um, if you Really want to, you could, but are you any good at actually engineering such a thing? A laptop can't RECEIVE power from a USB slot (which is how you'd plug in an iPhone)

You'd have to design a plug in that goes into your laptop's charging port.

Also note: An iPhone 5's battery is so insignificant compared to a laptop. Even if you completely drained your iPhone 5's battery, your laptop would get a MENIAL amount of power.