May 31 2012

Grad School (part 15)

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Einstein says that all objects in the universe are always travelling through space-time at the speed of light.

It works kinda like this:

       Einstein says:

 

  • Nothing can travel faster than the speed of light.
  • An object’s combined speed through all four dimensions (3 space + 1 time) = speed of light.
  • This fixed speed can be shared between the different dimensions
  • If an object is sitting still (relative to us), and consequently does not move through space at all, then all of the object’s motion is used to travel through one dimension: time.
  • All objects at rest relative to us and to each other move through time (they age) at the same rate or speed.
  • The sharing of motion implies that an object will travel more slowly through time than its stationary counterparts since motion is being diverted away from time, and into space
  • There is a limit to an object’s “spatial” velocity. The maximum speed through space occurs if ALL of the object’s motion through time is diverted to motion through space (light speed)
  • Thus light does not age
  • There is no passage of time at light speed

“Light is a pulsating sausage” -Barry Martin (describing wavelength and frequency along the electromagnetic spectrum)

Teleology: (From Greek “telos” or “end” and “logos” or “reason”) The concept that all things are directed by virtue of their ends and ultimate purposes.

“Physicists John Wheeler and Fred Hoyle have independently proposed a highly speculative notion that teleology is not preexistent or innate, but the goal is (or will be) created in the future and then acts back on the past. The result of a quantum event that took place in the past may not be perceived (or registered) by a human agent until the present moment. This action, Wheeler argues, then has a direct effect on the past, collapsing the wave function of that earlier time period. Because some past quantum states collapse only when we observe their fossil traces today, human beings can, through their observations, influence events millions of years ago. Thus, the past can be restructured by the present.” – from Who’s Afraid Of Schroedinger’s Cat? by Ian Marshall and Danah Zohar.

“He who controls the present, controls the past.” -George Orwell

“He who controls the Spice, controls the Universe.” -Frank Herbert

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