Ananova - A 16-year-old boy invented a hamster-powered mobile phone charger as part of his GCSE science project.

Peter Ash, of Lawford, Somerset, attached a generator to his hamster's exercise wheel and connected it to his phone charger.

Elvis does the legwork while Peter charges his phone in an economically and environmentally friendly way. . . .

"Every two minutes Elvis spends on his wheel gives me about thirty minutes talk time on my phone."

Pretty cool, right?

Apparently the kid's teacher didn't think so.

The teenage inventor was given a C for his project and has been awarded a D overall for the course.

That's gotta be a tough grading curve.

(via Feisty)