It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
A lot of starlight is a thermal effect, and sonoluminescence is a thermal effect, so they have that much in common, both reaching relatively high temperatures, but they are much different beyond that.
originally posted by: cooperton
This makes the sonoluminescence experiments all the more relevant because they consist of twinkling lights in the midst of water. Therefore, these sonoluminescent effects exhibited in the lab may be exactly what we are observing with starlight.
Based on the heat and pressure required for nuclear fusion in a star’s core, astronomers believe the cutoff for the smallest stars may be around 0.08 times the mass of the Sun. That’s still roughly 83 to 85 times Jupiter’s mass. In fact, the smallest star discovered to date, EBLM J0555-57Ab, weighs in at about 85 times the mass of Jupiter.
Stars and incandescent lamps are not the only examples of objects that shine because they are hot. Lava and heated metal worked by a blacksmith are other, albeit less common, examples of incandescent bodies. Like the lamp’s filament, they glow because they are hot; they emit red light when their temperature is lower and yellow/orange light when it is higher.
I don't know why you say that. Among other things, alchemists wanted to change base metals into gold. We have particle accelerators that can do that, but I've never heard of a sonoluminescence experiment doing that.
originally posted by: BlueJacket
a reply to: cooperton
So, this is utterly mind blowing for anyone who has studied alchemy, or the related arts.
originally posted by: Arbitrageur
A lot of starlight is a thermal effect, and sonoluminescence is a thermal effect, so they have that much in common, both reaching relatively high temperatures, but they are much different beyond that.
originally posted by: cooperton
This makes the sonoluminescence experiments all the more relevant because they consist of twinkling lights in the midst of water. Therefore, these sonoluminescent effects exhibited in the lab may be exactly what we are observing with starlight.
Sonoluminescence has an origin in imploding bubbles excited by sound, where the bubbles are about a millionth of a meter.
Starlight results from fusion in the interior of a star, transmitting heat to the outer layer of the star. These are much larger, where astronomers think the mass needs to be over 80 times the mass of Jupiuter to ignite fusion:
astronomy.com...
Based on the heat and pressure required for nuclear fusion in a star’s core, astronomers believe the cutoff for the smallest stars may be around 0.08 times the mass of the Sun. That’s still roughly 83 to 85 times Jupiter’s mass. In fact, the smallest star discovered to date, EBLM J0555-57Ab, weighs in at about 85 times the mass of Jupiter.
There are other ways to generate light through thermal effects, such as incandescent light bulbs. Here is an article comparing light from light bulbs to light from stars:
Starlight inside a light bulb
Stars and incandescent lamps are not the only examples of objects that shine because they are hot. Lava and heated metal worked by a blacksmith are other, albeit less common, examples of incandescent bodies. Like the lamp’s filament, they glow because they are hot; they emit red light when their temperature is lower and yellow/orange light when it is higher.
So the blackbody radiation can be demonstrated with many things, including incandescent light bulbs.
When you add the noble gases, such as neon, the radiation emitted is no longer just blackbody radiation because the excited electrons emit a certain amount of energy when they drop back to a lower energy level. We can see this effect in neon signs. While stars do contain some noble gases, they do not dominate the star's mass nor the starlight spectrum, which again is largely thermal radiation.
So when you add neon to a sonoluminescence experiment, it would seem to have more in common with a neon sign than a star.
I don't know why you say that. Among other things, alchemists wanted to change base metals into gold. We have particle accelerators that can do that, but I've never heard of a sonoluminescence experiment doing that.
originally posted by: BlueJacket
a reply to: cooperton
So, this is utterly mind blowing for anyone who has studied alchemy, or the related arts.
You can find plenty of science and pseudoscience on sunspots online. I seem to recall you have a preference for the latter. But thanks for pointing out another way sonoluminescence is not so "star-like" since I never heard of sunspots being observed in sonoluminescence. Other than the star-like temperatures reached, sonoluminescence really isn't much like real stars, so I think some of the claims of similarities go a bit too far. Again you can compare incandescent light bulbs to stars too, since they can get very hot, but they aren't much like stars either.
originally posted by: Dalamax
The old ‘stars are nuclear reactors’ line.
Why are sun spots cooler then the surface of the sun?
a reply to: Arbitrageur
That's what the video claims, but did you figure out why they show an animation of it producing light, instead of an actual video of an actual shrimp producing light (screenshot of the animation in that video):
originally posted by: Terpene
The mantis shrimps claws are so strong they create the sonoluminescense effects on impact.
I have no beef with sonoluminescence, in fact I find it a fascinating phenomenon. I do have a beef with claims of links between sonoluminescence and stars being carried too far. As already agreed the high temperatures being similar and resulting in light are not in dispute, but claims of similarities beyond that are what I have a beef with, like this statement in the opening post.
originally posted by: Terpene
what's your beef with sonoluminesence?
That goes way beyond what can be scientifically justified, and it's the main problem I have with the opening post.
...these sonoluminescent effects exhibited in the lab may be exactly what we are observing with starlight.
I don't know what that's supposed to mean, but the light from sonoluminescence results from light radiating at high temperatures, as it does with stars, molten lava, hot steel in a steel mill, incandescent light bulbs, etc.
it stands as a physical phenomenon, it's implications might still be written in the stars?
It's still being researched but it's at least partially understood as a relatively unique way of generating high temperatures using sound waves to create collapsing bubbles about a millionth of a meter wide. That's nothing like the way stars generate their heat. But, they both get hot, and give off light as a result of the temperature, as do many other things; that's the similarity.
I don't know where the scientific community puts it... Probably just an effect of thermodynamics?
It's nice to see someone else also recognizes this problem with the opening post, thanks!
originally posted by: OneBigMonkeyToo
The simple problem with this is that while there is a light visible, there is no detectable sound source that could produce them. Neither is there any evidence of a medium through which the sound could propagate, given that they are demonstrably many light years away. Producing those stars night after night, century after century, millennium after millennium in (to all intents and purposes) the same place just isn't possible.
That's a good video, which in addition to teaching how to replicate the experiment at home, teaches a larger lesson of how many details one must get right to replicate an experiment. So overall, I like the video and give respect to the experimenter for having patience and overcoming all the obstacles he encountered. He spent a year and a half trying many variations before he finally got it to work. He was asked why don't we see more of these experiments on youtube, and his answer is because it's a lot of work, and there's no real benefit. It's just something cool to look at.
originally posted by: buddha
This was on ATS years ago!
good to see it again!
if you wish to try doing this for your self go see,
video
he made two um! stars in water.
Rusi P. Taleyarkhan is a nuclear engineer and academic fraudster who has been a faculty member in the Department of Nuclear Engineering at Purdue University since 2003...
In 2008, he was judged guilty of research misconduct for "falsification of the research record" by a Purdue review board.
The examiner called the experiment a variation of discredited cold fusion, found that there was "no reputable evidence of record to support any allegations or claims that the invention is capable of operating as indicated", and found that there was not enough detail for others to replicate the invention. The field of fusion suffered from many flawed claims, thus the examiner asked for additional proof that the radiation was generated from fusion and not from other sources. An appeal was not filed because the Department of Energy had dropped the claim in December 2005
Why don't you do it yourself? You just posted a video of an experimenter doing a sonoluminescence experiment himself.
I have a great idea...
apply this princepul to the magnets in a plasma reactor!
sighs, no one will and we lose a great thing....
Many things in the youtuber's video were interesting. He mentioned he had to refrigerate (and de-gas) the water to see the sonoluminescence, which he could only see within a narrow range of chilled water temperatures, plus or minus five degrees. If the water was too cold or too warm, he could not produce the effect. His explanation of power usage was a little confusing but it sounded like power consumption was in the range of 1-3 Watts. He was using I think a 100 ml flask of water, so that power level would take some time to heat the water by five degrees. The experimenter's conclusion was that it's not useful for anything. (maybe just scientific curiosity, but no practical applications, anyway).
originally posted by: dashen
Okay. But can we heat up water to run a turbine with it?
originally posted by: Arbitrageur
" ...these sonoluminescent effects exhibited in the lab may be exactly what we are observing with starlight."
That goes way beyond what can be scientifically justified, and it's the main problem I have with the opening post.
originally posted by: OneBigMonkeyToo
The simple problem with this is that while there is a light visible, there is no detectable sound source that could produce them. Neither is there any evidence of a medium through which the sound could propagate, given that they are demonstrably many light years away. Producing those stars night after night, century after century, millennium after millennium in (to all intents and purposes) the same place just isn't possible.