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Microwave Experiments Cause Sponge Disasters
gollum123 writes "Reports about a study that found microwave ovens can be used to sterilize kitchen sponges sent people hurrying to test the idea this week — with sometimes disastrous results. A team at the University of Florida found that two minutes in the microwave at full power could kill a range of bacteria, viruses and parasites on kitchen sponges. They described how they soaked the sponges in wastewater and then zapped them. But several experimenters evidently left out the crucial step of wetting the sponge. "Just wanted you to know that your article on microwaving sponges and scrubbers aroused my interest. However, when I put my sponge/scrubber into the microwave, it caught fire, smoked up the house, ruined my microwave, and pissed me off," one correspondent wrote in an e-mail to Reuters."
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How else did they expect it to work? Of course you need the god-damn water in the sponge. Microwaves have a wave length measured in the centimetre. The size of a bacterial spore is a couple of orders of magnitude smaller The size of a bateria is a lot smaller than this again.
This means that if you wanted to destroy the blighters with radiation alone you have to choose a frequency a lot higher than microwaves, otherwise there will be areas in the minima of the standing wave that won't heat sufficently to kill the microbes.
The mechanism for steralisation is through the formation of steam that kills the majority of the nasties - not the microwave energy itself.
Simon
However, when I put my sponge/scrubber into the microwave, it caught fire, smoked up the house, ruined my microwave, and pissed me off,
He wasn't using one of those Sony battery-operated microwaves, was he?
Push Button, Receive Bacon
People do not understand microwaves. Berating them for not using their understanding of microwaves is like watching a Spiderman movie and saying "Why doesn't he just fly out of there?"
Although the moon is smaller than the earth, it is farther away.
If the sponge caugth fire, the microbes are probably dead by now. Right?
holding your breath underwater for 5 minutes cures stupidity. I take full responsibility for all results of home trials.
Did you soak the cat in water first?
AccountKiller
Lots of smoke? Smells like burning tires? Really pissed off? These people sound like Linux users trying to get their sound cards to work.
Prepare for a Class Action Suit filed against Reuters, the Scientists who did this and news papers that carried it for the damages caused by the fires.
Out of the $100 million that will be awarded, $80 million will go the lawyers, $10 million towards court fees, etc., and the class action plaintiffs awarded a $15 coupon each that can be redeemed for a Microwave at Wal-mart.
"Doing what i can, with what i have." ~ Burt Gummer
... and in the DRM, bind them.
Simple. Ban all sponges. They are clearly dangerous.
That bloody squarepants thing should be locked up too.
Back in good old days, many centuries ago, there wasn't any kind of this Politically Correct stuff and neither was there protection of the idiots. There was one rule: survival of the fittest.
If you made mistakes dumb enough to kill you , you didn't get anybody to pull you out and nature did its thing and eliminated the "idiot's" gene.
Of course this had nothing to do with real accidents, but in the long term idiots would dissapear.
Nowadays there is no personal responsibility. People do their own mistakes and blame it on somebody else.
This idiot should have had at least his genitals burned so we wouldn't have anymore kids.
Mind you, I am all about protecting and subsidising the weakest, the handicapped, the sick and al. I just believe that dumb people that bring it upon themselves deserve no attention and no compassion whatsoever.
Artificial intelligence is no match for natural stupidity
We Americans measure our bacteria as fractions of an inch so the sponge fires were no doubt caused when people, in their germ kill potential calculations, screwed up while converting centimeter length microwaves to inches. Honest mistake.
In case of human IQ, the evolution feedback works in the wrong direction.
Generally, the more intelligent, well-educated and well-established couples get children at a later age, and get fewer of them.
The "dumber" and lower-class people reproduce faster, and there will be more and more of them.
This effect is clearly visible both on a global scale (developed/developing countries) and locally (lower/upper class).
of course, those of us with children and bottle sterlisers know that placing water and objects in a microwave leads to the steam cleaning them... "well duh" was my reaction when i saw this "news" item yesterday....
Perhaps if you can't follow all the instructions there are some things you really shouldn't be doing.
... how else did _you_ expect it to work?
A simple question for you: water molecules, are they larger or smaller than the bacteria and spores to be killed?
Last time I've checked, the wavelength used in the microwave is about 12.5 cm. Sure, the bacteria are much smaller than that, but is it at all relevant?
KnightTristan
From last paragraph of TFA --that's not the original release, that's the advisory the university issued after all these people burned their sponges.
They had this on the BBC yesterday too, I think in the morning they had suggested everyone microwave their sponges and then in the evening news they had a man with a ginger mustache from ROSPA who said that he wouldn't advise microwaving sponges because there is no setting on microwaves for sponges and that he for one didn't have the faintest idea what would happen if you did microwave a sponge except that whatever it was which happened would probably be unsafe and might cause an accident.
I found it very reassuring that ROSPA ( Royal Society For The Prevention Of Accidents ) does its research so thoroughly before making announcements.
... but maybe some of the people didn't read the article :-)
Oh, but you say, taking things as fact without questioning why is a folly committed only by stupid people, thus making them ignorant. The two are really the same. I would then ask you why light is both a particle and a wave and why electrons jump to a different energy level when hit by the right frequencey of light. There's probably less than 1,000 people on the planet who can give a good answer to these questions, and unless you're one of them, you've committed the same folly as your average suburban mom - you still don't truly know why a microwave works.
Quid festinatio swallonis est aetherfuga inonusti?
Africus aut Europaeus?
One exceptional feature of a microwave is that it will keep heating at full effect no matter how hot the target gets. The only limit how you design your target.
d omestic-microwave-oven/
You can for example melt and cast most metals:
http://net127.com/2005/01/24/melting-metals-in-a-
With some research, you may even be able to use your kitchen microwave to generate some fusion reactions.
don't cut it off www.mgmbill.org
When I was in college, someone took one of my coffee mugs, filled it up with Hershey's chocolate syrup, and put it in the microwave for 90 minutes. Then they left. As best as we can tell, the syrup first boiled over and filled up the bottom of the microwave. Eventually it hardened into a black crust and caught fire. That's when the fire alarm woke us up, you know -- it was three o'clock in the morning.
The microwave was ruined, and there was some damage to the cabinet. And I lost my favorite coffee mug too. But it's probably the best use for Hershey's chocolate syrup that I could think of (since it's pretty awful stuff).
$nice = $webHosting + $domainNames + $sslCerts
People read the original article and played dumb for a bit, temporarily throwing out conventional wisdom regarding non-food objects in the microwave as they followed Reuter's authoritative instructions.
But, hey, this is slashdot and people don't play, rather, they are dumb, and we all have a good laugh at their misfortune while we're glad it was somebody else who ruined their microwave and not us.
And yes, I did make a whole bunch of toxic smoke years ago by forgetting to put the bowl of water while nuking a CD.
"[T]he single essential element on which all discoveries will be dependent is human freedom." -- Barry Goldwater
-Al
Swedish plasma phys. PhD student; MSc EE; knows maths, programming, electronics; finance interest; seeks opportunities
The Nazis practiced genocide and encouraged eugenics. The fact that the distasteful former has so completely colored the latter to the point of tainting its meaning is obvious in your case.
Eugenics is practiced with every prenatal screening, gene screening to discover genetic abnormalities prior to conception, and with almost every in-vitro process. Do you consider those "horrible"?
This is merely encouraging a subset to remove themselves from the gene pool. There's a major difference between showing someone cliff-diving and describing its wonders vs forcibly shoving someone off a cliff.
Or do you hold that the Darwin Awards website is an abomination as well?
The cesspool just got a check and balance.
From the FAQ:
"Note that being moderated Funny doesn't help your karma."
Thus the reason that people will mod a Funny post Informative.
SYS 64738
Eugenics is practiced with every prenatal screening, gene screening to discover genetic abnormalities prior to conception, and with almost every in-vitro process. Do you consider those "horrible"?
These are controversial ethical debates. Some people, especially the disabled community, do not believe that those who are born disabled should be screened out. Of course, the definition of "disability" and "disease" varies greatly.
I agree there's much debate on this topic. In a contrary view, there was a story in the insert in my Sunday paper this past weekend about a married dwarf couple wanting to ensure their child was born a dwarf. This would be intentionally producing a child with what is considered a genetic abnormality by, at a rough guess, 95+% of the population. Personally, I feel that intentionally disadvantaging a child in this manner, because they will be at a disadvantage in today's society, is not unlike unnecessarily amputating a new born's legs or arms at birth. The story also made mention of intentionally selecting deafness for a deaf couple. I feel the same way about that.This is merely encouraging a subset to remove themselves from the gene pool.
Deliberately encouraging people to kill themselves would... land you in a fair bit of trouble, I think.
Or do you hold that the Darwin Awards website is an abomination as well?
More like insensitivity to loved ones.
Telling someone to "drop dead" if you will, is not punishable. As an example of how stupid our society has become as a whole, I was by pure happenstance viewing an ad on TV this morning. It was of the new Lexus IS, and they had one on a runway racing against an IS dropped from a helicopter across the drop target. The ground based IS squeaks right under the falling IS in classic thrilling escaped by a hair style.What makes this germane to this discussion is the text that was apparently felt by someone that needed to be included in the ad. Underneath, it stated first off, "all ariel sequences were simulated", followed by "Professional driver on closed course. Do not attempt."
Now, if you have to tell someone that measuring out 4000 feet on a runway and racing a car dropped from a helicopter @ 4000 feet is something you shouldn't attempt, I'd say that anyone so tempted should be allowed to go ahead and potentially remove themselves from the gene pool.
The cesspool just got a check and balance.
The weird things isn't that people forgot to wet the sponge so it wouldn't catch on fire...
The weird thing is that people are so afraid of bacteria that they are going be microwaving their sponges!! Not only that, I see they sell anti-bacteria material sponges pre-made at the store... and anti-bacterial soap... and anti-bacterial air-sprays (don't worry about lung cancer from breathing that crap!). Anti-bacterial teething rings... anti-bacterial towels... anti-bacterial shaving cream...
When did people get paranoid about bacteria all of a sudden? You gotta admit, bacteria isn't a significant problem for most people in the industrialized world, even without all the extreme anti bacteria tactics people are using.