Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » sci.math.* » sci.math.independent

Topic: Vitesse de la lumière: constante ou variable (Lettr
e ouverte à Etienne Klein)

Replies: 10   Last Post: Jan 24, 2013 11:19 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Brian Q. Hutchings

Posts: 5,900
Registered: 12/6/04
Re: Vitesse de la lumière: constante ou variable (L
ettre ouverte à Etienne Klein)

Posted: Jan 24, 2013 11:19 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

thank you, for once again "neglecting practicalities"
of travelling in a single graphical 'dimension.'

"The paradigm of the special relativistic upheaval of the usual
concept of time is the twin paradox. Let us emphasize that this
striking example of time dilation proves that time travel (towards the
future) is possible. As a gedanken experiment (if we neglect
practicalities such as the technology needed for reaching velocities
comparable to the velocity of light, the cost of the fuel and the
capacity of the traveller to sustain high accelerations), it shows
that a sentient being can jump, "within a minute" (of his experienced
time) arbitrarily far in the future, say sixty million years ahead,
and see, and be part of, what (will) happen then on Earth. This is a
clear way of realizing that the future "already exists" (as we can
experience it "in a minute").



Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.