tdhoosier Posted May 17, 2022 Report Share Posted May 17, 2022 (edited) ....another topic for the slow, slow off-season: With the UFO hearings starting today I thought why not start a science thread to discuss the unexplained, the theoretical, the mysterious aspects, etc. of science. Some things on my mind...... 1. Regarding the UFO hearings, there's a great Joe Rogan interview with Neil Degrasse Tyson from a few months ago. Tyson is pretty adamant that the UFO are not aliens - he puts an emphasis on 'unexplained'. As in we don't know. And because we don't know, doesn't automatically mean that the UFO's are alien. There have been many other instances where certain UFO's, initially thought to be aliens, have been explained as weather balloons, illusions, etc. He also ponders that IF aliens had the technology to travel to this planet then they most likely wouldn't be 'seen' unless they wanted to be seen. 2. Time dilation/time travel. As a consequence to Einstein's theory of relativity, time is relative and it passes at different rates. So, the faster a person moves, the slower their time moves - relative to a person standing still (or moving at a slower speed). For example. If your walking down the aisle on an airplane to use the bathroom, you think you are walking at a speed of 2 mph, but to a person standing on the ground you are walking 402 mph (assuming the plane is moving at a speed of 400 mph). Anyway, based on that observation it is assumed that if you travel at close to the speed of light your concept of time would almost stand still relative to a person standing on Earth. Hypothetically, If one was traveling on a ship for 5 years at 99 percent the speed of light (2.5 years out and 2.5 years back), that corresponds to roughly 36 years on Earth. When the spaceship returned to Earth, the people onboard would come back 31 years in their future. An interesting fact I learned is that there is a human who has time traveled. A Russian cosmonaut spent 803 days in space, and because he rotated faster than the Earth in orbit he came back to Earth .02 seconds into the future. A question I have - If humans were to travel at a speed so fast that they could go interstellar and back, how do they avoid objects floating in space (giant rocks, meteors, etc.)? Wrapping it up - While I believe that there has to be intelligent life out there somewhere. Can they reach us? It's believed that it's impossible for an object to travel at the speed of light. And if an object (or being) could for observational purposes, taking time dilation into the equation, and assuming they'd be traveling for multiple light years, who would they report their findings back to, unless their species lived for hundreds of years???? If anybody is still reading at this point. Please share in cool facts, theories, etc. Edited May 17, 2022 by tdhoosier 3 Quote Link to comment Share on other sites More sharing options...
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