2011-03-07, 16:55 | Link #61 | |
Junior Member
Join Date: Mar 2011
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Quote:
This is verifiable with a simple minkowski diagram, or just thinking about the fitzgerald contraction of the axes when all things in the universe are moving at a constant speed c relative to you. The point is, whether it takes 4 or 15 or 1,000,000 years to get somewhere from a different inertial reference frame, it doesn't matter to you who is traveling at light-speed. Unfortunately, the catch 22 is that you'd have no idea when to stop because it's impossible to tell what "when" and even "where" is.
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2011-03-07, 18:12 | Link #62 | |
廉頗
Join Date: Feb 2004
Location: Massachusetts
Age: 34
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2011-03-07, 18:29 | Link #63 |
Gamilas Falls
Join Date: Feb 2008
Location: Republic of California
Age: 46
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It means nothing if there is no way to cut down on the time in takes to travel. Sure the person on the Lightspeed traveling object might see no time pass while at that speed, but the time will have still passed. Thus things like trade become impractical, and a round trip ticket a world 15 lightyears away might take not time for the traveller, the arrival back home will see 30 years have past.
Early interstellar exploration and colonies are likley one way trips for all those left on Earth are concerned. Even if they do come home, a generation or more of humanity will have passed by the time they return home. Thus the idea of mastering some form of science that gets past lightspeed (also gets around e=mc˛) is ideal so that trips between stars can be done within reasonable time frames for trade and other such things. But such efforts will take a long time and money to work out...something that doesn't seem to be in NASA's budget.
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2011-03-07, 19:11 | Link #64 |
Obey the Darkly Cute ...
Author
Join Date: Dec 2005
Location: On the whole, I'd rather be in Kyoto ...
Age: 66
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If they rotated directly around the main solar body or bodies yeah definitely.
But you'd have to stretch the "star" definition way out to include Jupiter (our might-have-been-star) much less Saturn. Doing this off the top of my head (short on time), but basically: 1) rotates around a stellar energy source as primary (perturbations from other bodies allowed like Earth-Moon or Pluto-Charon) 2) large enough for gravity to effect some arbitrary level of roundness. Really its a silly question of "how do you sort these marbles?" ... by size, shape, color, texture, taste? They're still the "things that they are" in a spectrum of sizes.
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2011-03-09, 17:02 | Link #65 |
Sleepy Lurker
Graphic Designer
Join Date: Jul 2006
Location: Nun'yabiznehz
Age: 38
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Well, this is it...good night, Discovery.
A couple of numbers and facts: - 39 missions - 148 million miles covered - 5,830 orbits of Earth - 365 days spent in space - 27 years of service - Most flown spaceship in history. Two missions left now before the curtain finally falls on the space shuttle program. After that, they'll find a new home in museums like the Smithsonian Institution.
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2011-03-10, 03:43 | Link #67 |
Obey the Darkly Cute ...
Author
Join Date: Dec 2005
Location: On the whole, I'd rather be in Kyoto ...
Age: 66
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And a time traveler apparently
(author of Frankenstein died in 1851... the word microwave was first used in the 1930s well after Maxwell predicted the existence of electromagnetic waves in the late 1800s. The first microwave oven was produced in the late 1960s. Now you know.. and knowing is half the batle rofl)
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2011-03-11, 02:06 | Link #68 |
NYAAAAHAAANNNNN~
Join Date: Nov 2007
Age: 35
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I messed that up. It is Sylvia Plath.
Also, there is this report on effects of microwave on tissue damage.
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