Re: beginner thought experiments

PD wrote:
Sue... wrote:
PD wrote:
Sue... wrote:
Randy Poe wrote:
Sue... wrote:
Space ships melt long before they achieve relativistic speeds.

1. There is no air friction in deep space.

Some of the more math oriented posters might like to know the
type of notation you use which doesn't distinguish 'none' from
an average density of about 1 atom per cubic centimeter.
http://www-ssg.sr.unh.edu/ism/what1.html


<

What would a blast of hydrogen do to your skin at the
speed of sound?
At 0.9 the speed of light? (Remember...velocity gets squared
when deriving the energy released in the impact)

Yup, and the impact of protons (hydrogen nuclei) at 0.9c and a density
of 1 proton per cc would certainly NOT melt a spaceship.

<< You should compare, for example, fixed target beamlines where
protons
are smashed into metal targets at *millions* of times that density and
at 0.999999c, and they do not melt the target. >>

Finally someone has a sensible sugestion.
Are such targets sometimes called calorimeters?

No, they're called fixed targets, not calorimeters.

Calorimeters are something else.

There are cases where beam dumps do deposit a lot of energy, but now
you're talking billions of times the density that you have with a
spaceship. Your spaceship is not going to encounter enough energy
transfer to melt anything. Do the math.

I am not the one claiming that empty space has physical properties
or distant observers can effect telekinesis. You are the one that
needs to do some math if you haven't the sense to square velocity
when calculating energy

There appears a world of difference between
the real-world cooling of matter moving near 'c' and your wild
conjectures about birthday twins and whatnot. It is nothing
other than sloppy physics to play a shell game with observers
that sometime alter the space and sometimes do not.

"Incident Wave Impedance"
http://www.conformity.com/0102reflectionsfig3.gif
http://www.conformity.com/0102reflections.html
"Retarded potential"
http://farside.ph.utexas.edu/teaching/em/lectures/node50.html
"Visualizations"
http://web.mit.edu/8.02t/www/802TEAL3D/teal_tour.htm

<< The failure of the accepted views and
resolutions is traced to the fact that the special relativity
principle formulated originally for physics in empty
space is not valid in the matter-filled universe. >>

C. S. Unnikrishnan
Gravitation Group,
Tata Institute of Fundamental Research,
Homi Bhabha Road, Mumbai 400 005, India
http://www.iisc.ernet.in/currsci/dec252005/2009.pdf

Sue...






"Cooling station for the calibration with a particle beam."
http://atlas.web.cern.ch/Atlas/SUB_DETECTORS/TILE/unit-tb-web.jpg

Wow! Lotta pipes! :-)

<< The power transferred to the various collimators and the
ion dump heats them. All these components are independently
water cooled and the cooling channels are instrumented with
thermistors. >>
http://fusion.gat.com/beams/diagnostics/waterflow.html

Your collegues from the temple of temporal absurdity aren't going
to be happy that you came up with that suggeation. You'll probably
be whisked off to parrot prison for failing to preach the church's
dogma. ;-)

Sue...
http://atlas.web.cern.ch/Atlas/SUB_DETECTORS/TILE/cooling.html




2. Space ships are already at relativistic speeds relative to some
observers. It all depends on your point of view.

If you think the ships give a hoot about my point of vieiw you may
be posting to the wrong news group.
http://en.wikipedia.org/wiki/Telekinesis


3. I recommend your usual response consisting of the entire table
of contents from an electricity and magnetism textbook, for no
apparent purpose.

:o) Gladly!
http://farside.ph.utexas.edu/teaching/em/lectures/node50.html
http://web.mit.edu/8.02t/www/802TEAL3D/teal_tour.htm

Sue...


- Randy

.

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