viewtopic.php?p=1538&sid=dbfafe133b3db1 ... b923#p1537
_Michael Gmirkin posted this on Jan 10 on the thread called Mainstream flirting more and more with the electric:
_On the next day I wrote:_(Desert Mystery Has Electrifying Answer)
http://www.livescience.com/environment/ ... -wind.html
_Sweeping sands across the Sahara and other dune expanses are blown by more than just wind, scientists have discovered. Powerful electric fields spring up near the desert floor and propel sand grains into the air.
_By accounting for this electricity, researchers say they can design better climate change models, and even explain features of the dust on Mars.
_Scientists have long been at a loss to explain why sand sweeping across the desert doesn't bounce higher when the wind gets stronger. But when researchers at the University of Michigan made the first calculations of electricity's role in this dance of particles, they were finally able to match their models with observations.- @rc-us or someone on the Cymatics thread said the stripes in the Sahara's sand and Greenland's snow may relate to vibrations, which is what Cymatics is about. Well, I guess there are a number of ways that electrical forces may involve vibrations. Could such vibrations cover an area as big as the Sahara or Greenland? We know the answer is yes, but which specific vibrations would those involve? Sound waves?WEEKLY PICK
- Quote: Powerful electric fields spring up near the desert floor and propel sand grains into the air.
- That's very gratifying news to me, as I was wondering a few months back why the Sahara seems to have stripes all over it, when seen from satellite views. The stripes go all the way to Saudi Arabia and beyond.
- Now get this. There is a similar striped pattern all over Greenland in the snow. I didn't check Antarctica or the North Pole etc. But I'll bet those stripes are also due to electric forces directing wind flow.
- I was seeing similar stripe patterns somewhere else recently in satellite images, but I don't recall where they were.
- I don't think I've seen stripes on Mars, but I was just remembering the huge dust storms there have a line of dozens or more dust devils moving parallel to each other across the surface [which should produce a striped pattern too].
- So here's a prediction. The Sahara and Greenland etc probably have similar lines of dust devils marching along evenly spaced from each other, producing the stripe patterns.
- I hope someone tells DaveS that this thread should be a pick of the week.
- Thornhill likes to emphasize the habit of electrical discharges to machine solid [& other?] surfaces and pulverize much of the eroded material into fine powder [or sand? or snow?] and deposit it in layers in another area or on a different [celestial] body.