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originally posted by: framedragged
a reply to: Forensick
We're just speculating about what you could potentially do if you could generate a plasma which could produce ultrasonic waves in the atmosphere.
Plasmas are just what you get when you put so much energy into a gas that its electrons jump ship and go their own way. The e/m interaction between the positive and negative ions in plasmas give them lots of unique properties. One is that plasmas vibrate. This means you can do the same thing you do with a speaker diaphragm and vibrate the plasma just right right to produce sound waves. 'Ultrasonic' sound waves are just sound waves above the range of our hearing. It's just sound waves that are too high pitched for us to hear.
Based on some scientific papers and a forum mystery from last year there has been some speculation that you can move air out of an airplane's way using a plasma generated ultrasound bubble, which could result in a plane experiencing much less fricitonal drag as it flew/moved through the atmosphere.
Definitely a lot of rabbit holes to explore if you feel like losing some time to the potentially mundane or the possibly fantastic hehe.
A photographer has taken a photo of a ‘jellyfish UFO’.
If you hadn’t heard of that type of flying saucer before you’re not alone because we had no idea it ‘existed’ either.
But it’s apparently a thing and Harry Perton has taken a photo of the unusual object in Groningen, in the Netherlands.
The photographer only noticed the UFO, which is named after a jellyfish because of its appearance, when he got home after taking pictures in the storm.
‘I was taking photos and suddenly something flashed,’ he said.
‘I decided it must have been a strike of lightning – but back at home I saw something strange in one of the photos that I took – what looked like a UFO.’
The image, which shows an object floating in the night sky and emitting an eerie flash of green light, sparked a flurry of online debate about what it could be.
But the photographer, who posts images on his blog, admitted he thought it was probably something meteorological and not aliens.
originally posted by: Arpad
I think I finally caught this bugger. Problem is it certainly was anything but quiet.
Around 1:am or so on the north facing side massive gutteral after burner sounds shook everything. This isn't uncommon coming from the base but for the life of me I couldn't see anything.
Then at 2 I went to get beer and a burrito. Now facing the open valley I hear this beast of a sound coming my way and can't see anything. Then a beautiful emerald streak shoots across the sky heading east. It resembled a meteorite but was much richer and fuller looking. People in vegas MUST of heard this thing, the sound spanned the valley.