[Physics] Physics Digest, Vol 4, Issue 5

[cj at mb-soft.com]

Hi, Again from Carl Johnson,

My ultimate intwention is to present a new presentation on Special Relativity "for the masses" but you guys are far more intelligent and insightful, so maybe I can present it in just words.

My new reasoning is based on two images in laboratories, one here on Earth and the other on a non-accelerating but rapidly receding identical image on a distant planet which recedes at 0.6c.

Describing the Earth viewpoint first, half of the image is a giant wall clock in the laboratory, timed exactly to GMT.  The other half of our "Earth" image is through a truly impressive telescope, of an identical giant wall clock on the other (receding) planet's wall, which WE see as moving at 0.8 the rate, due to SR.

The TRUE time we ever detect is what we are used to, and ONLY the image through the telescope has the sensation of running much slower due to Time Dilation.

The other half of the graphic is as seen from THAT laboratory.  We view a (local) wall clock which runs at a perfectly expected rate.  And next to it we see an image through THEIR telescope, aimed at our laboratory on Earth, where the clock clearly appears to run at 0.8 the rate.

NO acceleration so both Laboratories are certain that THEIR wall clock is perfectly accurate (in an Inertial Reference Frame in their opwn labs).  But they each see the "other" clock (through their telescopes) to be runningn clearly slowly.

My point is that the "Time Dilation effect" is not actually a physically true phenomenon, but both clearly see the "moving clock" appear to run at 0.8 times the rate of their own clock.

Definitely obvious to witness, for both.  But regarding any "physical sensation in the other Laboratory", no, there would be none.  

The distant observer might THINK that you are aging at 4/5 the rate, due to his calculation of Time Dilation, but YOU know that your birthdays are exactly as far apart as you have always expected.  Ditto, the other way.

The same has always been true of humans here and decaying mu-mesons high in our atmosphere.  In our laboratory, we accurately measure the average lifetime of a muon, (but through our telescope) we see a muon appear to age far slower such that the muon survives all the way down to our Labs.  A tiny muon scientist sees our atmosphere as only about half a mile thick, so he sees no problem in getting all the way down through what we call 50 miles.  But through HIS "telescope" he sees really, really slow moving Earth scientists moving one-hundredth as fast, and so everything makes perfect sense to everyone.

Yet, no one senses any quirky effects, just stuff that is "normal"

Carl Johnson
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