By Hypothetically, I meant "suppose that." That as of now, no one can run anywhere near 10000km/h, let alone .9c. I'm in the midst of reading Brian Greene's The Elegant Universe, and what my philosophy teacher mentioned in class when trying to explain self-evident truths differed from what I...
Hello, I'm sorry to ask a question that has probably been asked many times before, but I currently have limited time, and am very anxious to find an answer. Anyways, here goes:
Hypothetically: If two people start running from point A, one running at 10000 km/s, and the other running at...