Might not be the most scientific thread ever, but post your best Science related WEBMs. Pic related.
I don't really have much science related. Neither did OP, by the looks of it.
You mean when they focus the shuttle thrusters?
Its a pressure/temperature differential that causes the ionized exhaust particles to luminesce at a higher frequency.
Basically when you light a candle, the tip gets yellow because energetic soot particles give off life. Thats more or less what is happening here, just they are focusing those particles and in doing so, raise their temperature and output color considerably.
Here's a little video I took of Jupiter, which I thought was neat because you can clearly see the vibrations in the atmosphere.
can you explain what the smoke at the start is
its coming out of these pipes on each thruster then as the thrust flame goes off there are these bright tiny beams at the edges of the thrusters
what is that stuff
Telescope at my uni.
I ran out of appropriate .webms, so have some nature.
That smoke is venting of the liquid fuel tanks prior to ignition (basically done so they dont explode accidentally, it increases stability in the tank), and as such its probably water vapor from the air and not the actual gas that you can see, its not smoke at any rate.
The tiny bright beams are the vent gas igniting. They are on the edge of the laminar flow coming out of the thruster and so they get oxygen from the air, so they are cooler and in the visible range. The core of the thruster plume is too hot for you to see, its also possible that that is the part that has not yet ignited yet as it is coming out with force (and they dont want the ignition front to travel back up into the tanks IE challenger incident, althought that happened thru the side, but same fucking sorry ending for everybody).
>every signal travels to us completely unmolested over gigantic distances
>only to be distorted in the very last fraction of it's journey
Life'd be better without the atmosphere.
webm with no audio?
who could be behind this
we just don't know
Levitation melting. The induction coil both levitates the metal and heats it with eddie currents.
>including the single opposite-handed turn on top
Maybe that's to make it stable, to keep it from being repelled right out of the top of the coil? iunno
>The induction coil both levitates the metal and heats it with eddie currents.
Yeah it's pretty apparent that there's some massive AC current (and a coolant too?) running through the coil, but how the levitation works is not entirely obvious to me.
It the current's frequency tuned to the inductive susceptibility of the sample (which would vary with temperature I'd guess), or does the coil's shape create a special field gradient that creates a positive equilibrium configuration?
Possibly because at the start you're just warming/starting-up the system, but you don't want to lift off yet. Therefore you put them slightly to the side. When you do want to lift off you align them. Just throwing ideas.
Heat rises, its pretty hot, what do you mean by hot gas? The air around the arc is heated and ionized by the electric arc. So it rises. Often circuit breakers like these will have an air blast extinguishers or something similar to stop this arc.