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RichP714

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Everything posted by RichP714

  1. B-man mentioned that when he was in school, the atom was the smallest object in nature; electrons have been known since 1890; I had no idea he was so long lived; congrats!
  2. A friend of mine worked on the (short lived) Superconducting Supercollider; it cost more to shut down than it would have to complete.
  3. RichP714

    Life Line

    He's one of my favorites as well. You might also like Neil Stephenson and Greg Egan
  4. RichP714

    Life Line

    A short story in Robert A. Heinlein's future history compendium of short stories. Robert takes two concepts of modern day physics and turns them into the basis for a plausible future. 1. There exists an electronic device called a TDR (time domain reflectometer) with which one can locate a break or an open circuit within several miles of wiring (for example, the wiring harness of a modern jet fighter). It's not magic, but it works very well. 2. In space-time diagrams, the three spatial dimensions are reduced to one along a horizontal, and time is a vertical axis. Penrose diagrams are an example, and they can demonstrate why time has a direction, how time becomes space, and other nifty things. The lines of an object as it progresses through spacetime are called 'world lines' Consider that your birth was a point in spacetime that began your world line. As you grow, that point starts to become wider and begins to travel (either through space, time or both). Your death marks the end point of your world line, and your entire existence then looks like a worm (whose length is determined by your age at death) Now for the money shot; if you are a conducting point in spacetime, there's a way to find the terminus of your world line? Life Line (Future History or "Heinlein Timeline" #1) by Robert A. Heinlein 3.90 · Rating details · 799 ratings · 14 reviews CONTENTS: Introduction by Damon Knight Life-Line The Roads Must Roll Blowups Happen The Man Who Sold the Moon Delilah and the Space-Rigger Space Jockey Requiem The Long Watch Gentlemen, Be Seated GET A COPY Amazon Stores ▾ Libraries
  5. If I respond to two or more posts within a certain timeframe, they get merged; is there a way to prevent this other than waiting a half an hour between posts?
  6. Yep......although I remember a former me used to say "I'll sleep when I'm dead'
  7. Another way to look at it, some decades later, that may blow your mind, again
  8. Begin The Begin - R.E.M.
  9. Budding loudspeaker designers may have an interest:
  10. On this Valentine's day
  11. This may more clearly demonstrate that trying to square peg Euclidian attributes into the round hole of space-time doesn't work.
  12. A walk back to a key principle, which may help in understanding non-Euclidian space; or at least help one understand that trying to apply Euclidian characteristics to space-time doesn't work.
  13. Let's unmix that paint (or reveal the sinusoids in a composite signal)
  14. Eglin was my last assignment as a 2P0 (Precision measurement equipment laboratory(PMEL)). I was at a Type IV PMEL in Okinawa, also a type II, a type II at Altus, OK and type IV at Eglin. Finished my degree and cross-trained to 1N1 (Satellite imagery analyst) and got to do all sorts of fun stuff because I was recruited by the DoD to work at Offutt in the underground. My specialty was digital push broom sensors for the Satellites; very rewarding and fun
  15. The F-15 avionics test station used to periodically perform a 'relay rattle' to exercise/un-stick any errant relays; the thousands of relays inside the station bays were excited with a 400Hz signal for about 15 minytes; they made quite a bit of noise. me too; I used to calibrate XY plotters; remember iron core memory? fun times.....
  16. https://en.wikipedia.org/wiki/Constant_angular_velocity
    remember the Aphex demon face? http://www.bastwood.com/?page_id=10
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