You ever see a wheel turn backwards from the direction of the vehicle on a movie?
On Thu, Oct 22, 2020 at 1:23 PM H LV <hveeder...@gmail.com> wrote: > Don, > There is a lot of material to digest. > > People who are well versed in the mathematical properties of waves > probably don't find any of this astonishing, but until I watched the video > of moving moire beats I didn't know beats could move backwards relative to > the direction of the motion of the underlying waves. > Using a geometry program called Geogebra to construct sine waves I > confirmed that if a moving wave W* is superimposed on a stationary wave W > the beat will move in the same direction as wave W* if the frequency of W* > is greater than wave W, but the beat will move in the opposite direction > if the frequency of W* is less than W. > > Harry > > On Wed, Oct 21, 2020 at 3:04 PM Don86326 <don86...@gmail.com> wrote: > >> On 10/19/2020 12:10 PM, H LV wrote: >> >> https://youtu.be/6I0SF0dXoZg >> In addition to the generation of moire beats with different frequencies >> this video also seems to show that whether the moire beats move in the same >> or opposite direction as the revealing plane will depend on the spacing of >> the lines in the base plane. >> >> Harry >> >> Yes, a ratio between patterns select the direction that the interference >> patterns go relative to base grid-pattern movement. Moire pattern >> acceleration. >> >> That's a really great video you supplied showing pattern acceleration, >> Harry, in your message above. >> >> Vernier-caliper scales work on the same principle of ratios between two >> scales. The slide rules from back in the day produce an interference >> between two graduated scales as an arithmetic solution --a bit akin. >> Have you heard of the moire pattern magnetic gears as >> torque/speed/direction converters? They use the same principle of >> interference pattern acceleration/deceleration --but with magnets... >> >> *Magnomatics Magnetic Gear:* >> https://www.youtube.com/watch?v=Ed4aitAXDsg >> *Magnetic Gear:* >> https://www.youtube.com/watch?v=_qpHMZ9L4P8 >> >> Remember how strong magnets brought the the screen of the old CRT >> computer monitors or TVs would show interference patterns in color around >> the magnet? There are two grid-masks in the old picture-tubes that the >> electron beams go through. A proximal magnetic field perturbs the electron >> beam travel -as if-- the electrons see two differently sized grids. The >> virtual (magnetically) shrunken scale-difference of electron masking >> screens on a gradient toward the magnet produced bipolar symmetry >> interference patterns on the CRT screen in the three primary fluorescence >> colors of the screen phosphors. Colorfully demonstrated here... >> >> *Beauty of Magnetism (Magnets and CRT Screen): * >> https://www.youtube.com/watch?v=6t16HTP4Ri8 >> >> >> With the hyper-fine Newton's rings moire interference, the interfering >> patterns are 1) the curves of the rings, and 2) the sampling-rectilineation >> of the image bitmap. 1) plus 2) --affords--> pixelated interference from >> a raytracer. The pattern acceleration/deceleration in the newton's rings >> moire interference patterns is then always on a radial shift --since the >> rings are round. Stupid numbers of rings can be modeled in memory with >> POVRay, and the colors are made in algorithms. >> >> Therefore, the moire pattern acceleration in hyper-fine Newton's rings >> pixelations is a *lens apparent. * >> >> Here is a dramatic lensing-event in a pixelated, hyper-fine Newton's >> rings moire interference pattern: >> >> Hyperfine Newton's ring pixealation-fractal with a lens-event showing a >> magnified dot as a Newton's ring (fractal recurrence at four orders of >> over-sampling stripes for a pixel): >> >> >> https://groupkos.com/dev/images/Newton%27s_rings_fractal_1000x1000_05054.png >> >> Copyright d...@groupkos.com 2020, released under MIT >> take-it-and-run-with-attribution-to-me license >> This image is created in computer memory as about two million rings on a >> parallel projection of a striped-sphere memory-model, sampled at 1000 x >> 1000 pixels --I think. The scale is on the image. The scale unit is the >> sphere diameter. (See below for more numbers on oversampling.) >> >> https://groupkos.com/dev/index.php?title=Category:Moire <-- Hyperfine >> Newton's rings --the movie, coming in the month of Roundtoit <-- lurk here >> and/or VO for stuff pending >> >> *DIY hyper-fine Newton's rings fractal movies for free (plus elbow >> greese):* >> 1) Free, open-source *POVRay *raytracer download: >> https://www.povray.org/download/ (a classic) >> 2) Copy the HNR POVRay source code from: >> https://groupkos.com/dev/index.php?title=Hyperfine_Newton%27s_Rings_Fractal_Moire_Pattern_Generator >> 2b) Copy/paste the automation-parameters found in the source code >> comments into the command box of POVRay (This invokes 19999 sequence-images >> when ran). >> 3) Freeware rapid viewer of files in a folder for previewing POVRay image >> sequences: https://www.irfanview.com/ >> 4) A free image utility for mass file-type conversion and renaming: >> *Tinuous*: http://www.vieas.com/en/soft.html <-- search this page list >> for 'Tinuous' >> 5) A free fossilized app form way back for creating a big GIF animations >> from still images: *Microsoft GIF Animator: * >> https://archive.org/details/MicrosoftGifAnimator* (supports drag-n-drop >> from many images in a folder)* >> 6) Need help? A Skype screen-share tutor-session sounds like pandemic >> relief. Reply off-list. >> 7) I need help; depending on who you ask. >> >> >> Cheers, >> >> -donE >> Colorado, 7888 feet up (lofty amateur science in rarified air --boiling >> point = 196 F.) >> >> Post script: *Rarified math* >> >> -- Crunching oversampling numbers; a light snack -- >> >> *Givens:* >> >> A black/white pattern scale of one is a sphere surface pattern of two >> hemispheres, one black and one white. >> >> A 1/2-scale of the black and white pattern makes a black and a white >> layer in each hemisphere. Half-scale [pattern = two colors per hemisphere. >> >> A 1/4-scale of the black and white pattern makes four colors stripes per >> hemisphere, etc. >> >> The hyper-fine Newton's rings fractals above are about a black/white >> pattern-scale of 4.8 millionths of a sphere diameter, so we have 4.8 >> million color-pairs per hemisphere, half black, and half white. That is >> 2.4 million black rings per hemisphere. >> >> *Now: * >> >> The image is 1000 pixels square, and the sphere is about 960 pixels. >> >> 2.4x106 lines / 9.60x102 pixels = 2.4 lines / 9.60 pixels x 10(6-2) = >> 0.25 x 104 = 2.5 x 103 lines per pixel average >> >> >> *ballParky results: * >> >> This is three orders of magnitude oversampling, or 2500 lines scanned >> algorithmically to color one image pixel black or white, on average across >> the image. >> *But wait:* >> >> There's more. The scale-shrinkage time-line of movie fractal >> lensed-epochs of fractal pattern complexity can be plunged down to 2X1015 >> (minus one) scale. (POVRay's digital limit on scaling transformations). >> >> At the POVRay software limit, 11 orders of magnitude of oversampling >> (using the ratios above) created sequence images near this limit of fractal >> dust with no certain intelligible fractal pattern. >> >> Yet, in this dusty time-line animation would yet appear lensing-events, >> and a dusty ring would appear and expand through the fractal dust. >> >> >> -- >> Stay hydrated! >> >>
