Suppose a time machine has just brought you forward from 1750 (post-Newton but pre-electricity) and you€™ve been shown the lightbulb demonstration of Figure Q27.1. Do observations or simple measurements you might make€”measurements that must make sense to you with your 1700s knowledge€”prove that something is flowing through the wires? Or might you advance an alternative hypothesis for why the bulb is glowing? If your answer to the first question is yes, state what observations and/or measurements are relevant and the reasoning from which you can infer that something must be flowing. If not, can you offer an alternative hypothesis about why the bulb glows that could be tested?

000 FIGURE Q27.1