... theories are BOTH wrong. But who could say for sure. I really can't say. Yet again, it's very possible that the answer could be discovered tomorrow. For instance here are some quotes that prove that someday we could have machines that could travel through time. "Heavier-than-air flying machines are impossible." (Lord Kelvin, president, Royal Society, 1895) "I think there is a world ... theory is that the speed of light stays constant. If you find this hard to believe scientists, through many experiments, have proven it. In 1887 two American scientists performed a now-famous experiment. ...

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• Approx Pages: 4
• Grade Level: High School