He's faster than a speeding bullet, more powerful than a locomotive, and able to leap tall buildings in a single bound - but do Superman's superpowers make sense outside of his fictional world when studied in a real-life lab?
He's faster than a speeding bullet, more powerful than a locomotive, and able to leap tall buildings in a single bound - but do Superman's superpowers make sense outside of his fictional world when studied in a real-life lab?
