The first theory discusses pointing a laser beam at the moon and then moving it across. Surely the sweeping distance would go faster than the speed of light right? They explain how it is an illusion by getting into particle physics. The rest of the narration discusses the other possibilities with diagrams which is really interesting.
The comments for this subject have gotten very spirited and here are two battling sides:
Ronbo Fett says:
We’re only at the tip of the iceberg of scientific endeavour. Try explaining to an average man 1000 years ago how a modern fighter jet works, how every little piece works together, who created it and how every piece is manufactured, the scientific theory behind all these components and the whole manufacturing process.Now how can anybody sit here and sum up ‘We’ll never go faster than the speed of light, it’s 2015 & we know everything’…
SacredVolt replies:
We cannot go faster than the speed of light in a vacuum, no matter what. It doesn’t matter if we have only explored 5% of the universe or 100% of the universe. In all inertial frames of reference, the laws of physics apply in exactly the same way. The laws of physics state that for a body (with mass) to go as fast as the speed of light in a vacuum, it must have a length of 0, time in its frame of reference must stop, and its mass will become infinite. This is not physically possible. Also, to go beyond the speed of light in a vacuum, your length must be negative (not possible), and time must actually go backwards.
This is truly a fascinating subject and one thing is for sure. Just like when they were certain the earth was flat, theories always change. We hope you enjoy the video and feel free to comment with your theories.
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