Distance and Special Relativity: How far away is tomorrow?
Time is shorter than you think! Tweet it - http://bit.ly/rrfs4p Facebook it - http://on.fb.me/ny5lmc minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook...
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What do we really mean by "near" and "far"? In a way, distance is just a measure of howhard it is to get between two points. The harder to get from here to there, the moredistant "there" is.Thinking about distance in multiple dimensions is easy now!In two spatial dimensions, a point a mile north and a mile east is more distant thanone that's just a mile east - it's harder to get to.What about one space and one time dimension? Easy as well!Getting to a point a mile east in 10 minutes is a lot harder than getting there in 10 hours- so one mile east and 10 minutes in the futureis way more distant than 1 mile east and a day in the future.And a point that's a mile east right now is impossible to get t...
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What do we really mean by "near" and "far"? In a way, distance is just a measure of howhard it is to get between two points. The harder to get from here to there, the moredistant "there" is.Thinking about distance in multiple dimensions is easy now!In two spatial dimensions, a point a mile north and a mile east is more distant thanone that's just a mile east - it's harder to get to.What about one space and one time dimension? Easy as well!Getting to a point a mile east in 10 minutes is a lot harder than getting there in 10 hours- so one mile east and 10 minutes in the futureis way more distant than 1 mile east and a day in the future.And a point that's a mile east right now is impossible to get t...
