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Paul Joseph	Posted 9/13/2016 11:00 AM (#27826) Subject: Explorations
PhD Alumni Posts: 4414 Location: United Kingdom	Dear Anyone Who Reads This I see that Sir John Franklin's fabled but tragically lost North-West Passage ships might both at last have been found, the HMS Erebus and HMS Terror, thanks in part to local Inuk legend .. a fascinating piece of nautical history perhaps resolved at last .... And now it is also thought that they might have found the last site where the pioneer aviator Amelia Earhart may have departed this earth on a lonely atol in the South Pacific .... Which is by way of making a link to space travel, and a question I have long had about travelling at light speed and the unlikelihood of it being possible for a very mundane reason, which is, that any craft travelling at such a speed and beyond, must surely run the risk of hitting a fragment of space debris, comet, rock, speck of dust, or anything else that might cause disaster ... wondered if anyone had any ideas on that ....? PJ Edited by Paul Joseph 9/13/2016 11:00 AM
Litilwolf	Posted 9/22/2016 9:48 PM (#27837 - in reply to #27826) Subject: Re: Explorations
New user Posts: 3	Hi Paul, In speculation to time travel and Einstein's Law of special relativity going that speed a ship and human would have to be encased in an antigravity shield of some sort for the human body cannot handle the G-force. Also assumption that there would have to be a very sophisticated navigation system to avoid planets and stars. But as far as the dust and debris it would hit the shield and be reflected or disintegrated. Just speculation though.
mruppert	Posted 9/23/2016 7:36 PM (#27841 - in reply to #27826) Subject: Re: Explorations
Expert Posts: 2118 Location: The Heart of Space	Hi Pauly and LilWolfman, Down to earth, one of my favorite authors (Dan Simmons) has a door stop novel entitled "The Terror" which fictionally recounts Sir John's travails. In the Dan Simmons tradition he gives the hostile environment a persona and corporeality. Very deep book if you have lots of time to read it . I won't belabor the Einstein fallacies (particularly about time) , but I will ask another question to raise a point which involves these concepts in an obtuse manner. I hope that new students join in as it seems we have a few....... I am a time traveler and I decide that I am going back in time to shoot and kill my grandfather for slights that warrant such a degree of vengeance. I pop in to the time machine, go back, and shoot Grandpapa right square between the eyes. What happens if I do that??????? Peace Past, Present and Future, Marty
Paul Joseph	Posted 9/24/2016 7:28 AM (#27844 - in reply to #27841) Subject: Re: Explorations
PhD Alumni Posts: 4414 Location: United Kingdom	Thanks for responses ... Marty, I think some now refer to that problem you present as the 'Bootstrap Principle', don't they? I think I mentioned before that Paramhansa Yogananda in his Autobiography of a Yogi that his guru practise cosmic travel psychically ... that might be our best hope: Though (Professor Stephen) Hawking is also now saying that if there are aliens out there we'd be best to hide from them, as they would be so technically advanced to have reached us, that their civilization could easily overwhelm ours. PJ
Supernatural3	Posted 9/25/2016 9:17 AM (#27846 - in reply to #27826) Subject: Re: Explorations
PhD Alumni Posts: 1882 Location: NE Ohio	They have reached us already, and are extreme technically advanced. They have no need to physically speak, they do it telepathically well. It's both very beautiful and terrifying at once.

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