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The Physics of Beer Bubbles
Roland Piquepaille writes "Yesterday, I told you about virtual beer. Today, we follow two North America researchers who are studying the physics of real beer bubbles. 'Singly scattered waves form the basis of many imaging techniques such as radar or seismic exploration.' But pouring beer in a mug involves multiply scattered acoustic waves. They are more complex to study, but they can be used to look at various phenomena, such as predicting volcanic eruptions or understanding the movement of particles in fluids like beer. They also could be used to monitor the structural health of bridges and buildings or the stability of food products over time. Read more for additional references and a photo showing how the researchers monitor beer bubbles."
On Topic
Sorry, I'll take my beer without the scientific mumbo jumbo. If I wanted to get technical, I would drink wines and learn how to sniff corks.
More research on the subject. Very interesting stuff.
See my journal for slashdot ID's by year. Mine created in 2005. http://slashdot.org/journal/289875/slashdot-ids-by-year
Read more for additional references and a photo showing how the researchers monitor beer bubbles.
People are getting paid to study beer? Where do I sign up?
That's our life, the big wheel of shit. - The Fat Man, Blue Tango Salvage
They could use the random interactions of the beer bubbles as a random number generator for crypto. This is much cooler than the plain ol' lava-lamp random number generator that Sun uses.
Plus this gives the added advantage of being able to recruit college students that are torn between a degree in Art History, and one in Math by telling them that they'll be forced to work with beer. It's a Win/Win situation!
load "$",8,1
Yeah but have they split the Beer atom?
And can it be used to power a starship drive?
The Schwartz space ain't from Spaceballs.
The geometric shapes formed by coke rocks and how they are giving architects new ideas!
Yea, because it is possible to determine now what will be worthwhile science in 50 years time... You know quantum mechanics pretty much started with physicists trying to explain how infra-red radiation behaves inside a hot oven. I doubt many people at the time expected that research to develop into solid-state physics, which is what the guys over at Intel rely on to make their CPUs...
Einstein was the one who added bubbles to beer. http://en.wikipedia.org/wiki/Young_Einstein
I can hear them now..
guinness beer guys: "Mixing math with beer? Brilliant!!"
I have to return some videotapes...
I work at a bar, and sometimes i see an interesting phenomenon in beer glasses. If you leave a draft beer out and let the foam fizzle away, after a while(but not too long or the foam will disappear completely) the foam will coalesce into a ring shaped pattern of circles, equally sized and spaced and at the same distance from the rim and centre of the glass.
It takes about half an hour for this pattern to form, and for the life of me, I can't figure out what makes it!
Anyone?
We haven't seen this level of advancement in beer technology since Einstein split the beer atom back in 1988.
- Stealth Dave
Evil is as eval("does");
Ahhh, someone is taking up his groundbreaking research into beer bubble paths. Soon we shall be able to find out irreproducable his work truly is!
--
# Canmephians for a better Linux Kernel
$Stalag99{"URL"}="http://stalag99.net";
Scientist: Our group would like to study beer bubbles. Board member: Denied. We need a cure for cancer. Scientist: But it's really important -- like that Norwegian study which proved that penguins don't fall on their back when observing passing planes. Board member: Sorry, but it's not viable. Scientist: You can have 20 percent of the beer. Board member: Will $200,000 do?
Full Tilt
Maybe, but sometimes science is about researching things that are fun and fairly mundane. Much of what you take for granted such as a cell phone and computer came from research that many at the time scoffed at saying that it had no practical purpose. So really who are we to say what avenue of research will yield useful results? After all when it comes to fluids there is quite a bit that I'm sure we don't understand and research such as this may provide a little snowball of insight that turns into an avalanche of knowledge. Do I think it will? Not really, but hey they're having fun and who the hell knows where it could lead?
"Some books contain the machinery required to create and sustain universes."-Tycho
...if you put a beer into a soundproof booth, are the bubbles still going to behave how the researchers expect them to?
It always bothers me when laypeople decide what is worth researching. Any time there's an article in which scientists are studying something without the obvious global impact of an AIDS cure, there is always a handful of posters criticizing their focus. Would we really be any closer to a cure if every person with a scientific background was required to study AIDS, and only AIDS?
Scientific breakthroughs aren't needles in haystacks, waiting to be found through tedious searching, and if only we made everyone look for them we'd find them sooner. Instead we let scientists research as they wish, the exact requirements for usefulness being decided by sources of funding, and eventually enough seemingly-unrelated, small conclusions come together to yield the breakthrough.
>It always bothers me when laypeople
This is Slashdot, there are no people getting laid.
Bud ain't beer so it's hardly on topic.
Engineering is the art of compromise.
Engineering is the art of compromise.
Although I won't go give Roland a pile of cash, I think it's worth mentioning that there's this amusing little video regarding beer bubble physics.
It's all on why bubbles in Guinness move down.
I am officially gone from
Trust nerds to take the fun out of beer and turn it in to something "interesting".
God Be Gone
Yahoo!
-=[ place
This is incredibly important research. If they keep it up, it's only a matter of time before they develop a can or bottle where the beer has the same consistency as when it's hand-drawn. They can't do that without researching beer bubbles. The widget has been obsolete for far too long, it's the 21st century for heaven's sake.
If they can spend $17 billion a year on NASA to launch a few people into space to do nothing of use, they can spend a couple of billion to get me a pub-like pint of ale at home, at supermarket prices.
Guinness in the bottle doesn't hold a candle to Guinness on tap... warm!
The game.
Anyway, it seems that after a few weeks of just submitting articles to lull the editors, he's returned, as he ALWAYS does, to pimping his own "blog" (of plagiarised stories and pictures) linked "Read more for additional references ..."
Don't like it?
Don't read it!
This would be the point of a filter, Roland. (shhh about this being ac as well.)
Happy Noodle Boy says "F###ing doughnut! Mock me? You fried cyclops!!"
FAIL on my part oh well, flaming in public, c'est la vie. My hobby exposed :(
:P
Don't act like you've never done it... except the several of you that will, I'm in no position to make comments
Happy Noodle Boy says "F###ing doughnut! Mock me? You fried cyclops!!"
I know a lot of people think Roland Piquepaille has 'reformed' because hes no longer linking to primidi, but Roland is still whoring Slashdot for ad views and the like - its just that he is now employed by zdnet. The links in the summary all link to his new blog run by zdnet.
Im not saying that its wrong to do this - but dont be fooled into thinking that his new links are somehow 'genuine' and hes not whoring as usual.
Fact: Beer Makes You Psychic.
Geek Of The Day, "A geeky place for geeky faces."
Although the award in 2002 to Arnd Leike for his Beer Froth research might disqualify them...
He's playing Devils Advocate. He's pretending to be someone who gets laid.
Perfect time to point this out. A full sized, beer brewing, talking Bender.
http://www.asciimation.co.nz/bender
This research does not seem to be fair enough. These findings were already theorized by the French mathematician René Thom; he developed the catastrophe theory between 1968 and 1972. http://en.wikipedia.org/wiki/Ren%C3%A9_thom He published his work "Structural Stability and Morphogenesis" (1972), where he states the catastrophe theory may explain natural phenomena such as the beer bubbles, the tree barks, vulcanic activity, earthquakes, sea waves, and even a stock market catastrophes... It's a shame this PDF doesn't even mention such fundamental theories. You may find more about this theory in: http://en.wikipedia.org/wiki/Catastrophe_theory
... so I could post how much this made me think of Young Einstein. I also knew this is the only place in the world where other people actually know about such an awesome movie. I feel at home :)
Just let me hear some of that rock and roll music
Any old time you choose it
It's got a back beat you can't lose it,
Any old time you use it
Gotta be rock roll music
If you wanna dance with me
If you wanna dance with me
What goes down, may eventually come up.
Knowing Google's lust for data collection, the Soviet Union is still alive and well inside the psyche of Sergey Brin....
Your argument sounds as though you are adopting the "monkeys at typewriters" view. Although I'll grant that some great achievements have been made by combining smaller conclusions together (technically that's almost the definition of science), there have been a number of things that were discovered as the result of dedicated, untiring study and research. Consider the Manhatten Project, the polio vaccine, and the Apollo NASA project. Each relied, in part, on other seemingly random research, but the true nature of the breakthroughs came from the mandate that brought the projects together. (In fact, it's a debatable point that the Apollo project represents the largest, and most expensive, scientific project conceived for a single purpose in recorded history)
The bottom line is there is a clear causal relationship between directed scientific study and scientific results. That's not to say that an AIDS cure, for example, will be guaranteed to be discovered should scientists be thrown at the problem. However, I think it's incorrect to think that breakthroughs can't be found sooner if more research were directed towards their discovery.
Do I think an AIDS cure could be found if we required every person with a scientific background to research it? Absolutely - if one exists, and I believe one does. Science has proven time and again that, when motivated by necessity, it is quite capable. Penicillin, although previously researched, was difficult to mass produce until the mid-40s. It was due, in large part, to the dedicated work of Florey & Chain, that made the necessary breakthroughs leading to expanded use - and that was partly due to the urgent need for the drug during WW2.
The point is there should be some scrutiny involved in academic research. I have a hard time stomaching stories which expand upon seemingly ludicrous scientific research. If it is the result of random ennui being "itched" by a scientist in his free time, that's fantastic. If it's the result of a directed, 6+ figure research grant, I'm more concerned. There are some issues in society that must be solved by applied science, and should be done in an expedient fashion. If that means we need to take scientists and make them research some topics, perhaps we should. If the world is facing a pandemic such as AIDS, SARS, or Avian Influenza, frankly I want there to be an all-out science "assualt" on the problem. Same goes for a potential NEO collision. And if the money for the research programs comes from taxpayers (as it does for some studies), then "laypeople" have every right to scrutinize the process.
All too often us "laypeople" are fed stories where a scientist heads up a multimillion research project that studies frivolous things, and the justification is that it could lead to diverse breakthroughs, usually related to a recent event. For example, this article points out how the research could help improve techniques in studying the structural integrity of bridges. I actually had to verify the article date because this seemed like a pandering to the recent bridge collapse, although in reality it's just a grim coincidence. Although it would be hard to quantify, I'm willing to guess that the number of scientific discoveries found by accident would be less than the number of discoveries that came about as the result of directed research. Using the penicillin reference, the original antibacterial nature of penicillin may have been an accidental discovery - but the refinement, production, delivery, and derivation of alternative penicillin treatments are all results of directed study.
For what it's worth, I notice in the article that this "beer study" wasn't the focus of the scientist's work, so I'm not as concerned. (It seems from his own admission that it's more of a related diversion.)
Londovir
There are a few Roland Piquepaille filters available - they take the form of Greasemonkey scripts running in Firefox
I use this one: http://userscripts.org/scripts/review/5735/ it's called NoRoland - if userscripts.org is down (again), the author (Dave?) hosts it on his own site too - http://davephp.net/
It's very effective - all I see of Roland's pollution now is a greyed out article box with the words "This is a slashvertisement. Please ignore!"
Most of the time I choose to "ignore"
:wq
Nowadays the thing I ask myself is "will this job be of any value if civilisation collapses?" If you work in a call centre or IT, be very afraid...but if you can fix a broken irrigation pump or generator, build a house from traditional materials, grow food or brew beer, you probably have a future. Why beer? Well, apart from the likely demand for the product qua beer, earlier societies produced "small beer" (i.e. low strength) for general consumption because the brewing process killed fecal and soil bacteria, and the alcohol then kept the product sterile. In a society without clean drinking water, and no sewers, beer was what stood between you and dysentery.
Pining for the fjords
Quidnam Latine loqui modo coepi?
Does my memory serve me correct? Wasn't the physics of a nice cup of tea discussed a few years ago? Brownian motion and all that!
I think it came with fairy cake too.....
Don't be apathetic. Procrastinate!
But that will all blow over in a matter of months. Americans are easily distracted by other things. To really understand how to build a bridge though, look no further than Ancient Rome. Now those guys knew a bridge from a hole in the ground!
The game.
Quidnam Latine loqui modo coepi?
Actually, as a researcher in medical ultrasound, this is amazingly important stuff.
I was surprised that the article didn't mention diagnostic ultrasound. When you have an ultrasound performed, the scanner assumes any sound that it receives originates from a single scatterer and that that the location of that scatterer is based on the speed of sound in tissue (about 1540 m/s).
My lab has recently been performing some work on the extent of multiple scattering in tissue, and it's quite larger than what was previously thought. This contributes to the "noise" that you see on an ultrasound image. If work on multiple scattering (whether in beer or tissue) can help with this problem, ultrasound (a cheap, safe imaging modality) could be much more beneficial.
Touche! And lol! But would John Q. Public even know about that?
The game.
After a small(ish) initial investment, you can have pub-like ale at home. I get 1/4 barrel kegs of Sam Adams (I prefer a nice hoppy lager, but I'm sure you can find an ale to suit your tastes) for something like $56.00. A 1/4 barrel holds about 50 pints... that's what? $1.12ish a pint. What would you consider to be supermarket prices? Or better yet, brew your own and use a cornelius keg.
I brew my own and quite frankly, my product is better (or at the very least, more to my taste) than most bottled beer.
...but before you go getting excited at the notion of cheap beer, note that there's start-up costs involved: a decent brewing/sparging/lautering vessel (mine is stainless, 10 gallons, makes life easy) can run about $300, your primary and secondary fermenting vessels are pretty cheap, and so are cornelius kegs, but if you're kegging you'll want a forced-CO2 system and a keggerator and a tap system... and of course, if you're REALLY into it, your life won't be complete without this-or-that fancy hobbyist item... like any hobby, brewing has an entire industry surrounding it, capable of absorbing infinite amounts of cash.
I figure my cost-per-pint, not including my labor, is somewhere around $.70- my only costs are grains, hops, and yeast- and I do grow some of my own hops, and yeast can be cultured from the last batch for the next one.
It's hardly a black art- brewing is simple, takes less time than you'd think, and can be quite fun.
If there's one thing I won't stand for, it's intolerance.
The problem with buying barrels at home is that it goes off within a week. I mean I'm a heavy drinker, but I don't think I could average seven pints a day every day. The pump costs a couple of hundred quid as well. And I haven't really got anywhere to put it.
Supermarket prices would be about a pound per tin, or even less.