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Science => Everything Physical Science => Physics => Topic started by: Orstio on June 06, 2006, 07:13:26 PM



Title: Ball-lightning in the laboratory
Post by: Orstio on June 06, 2006, 07:13:26 PM
Click here to read the article ... (http://www.everything-science.com/content/view/200/1/)
Quote
Scientists in the joint study group of Max-Planck-Institut für Plasmaphysik (IPP) and Berlin’s Humboldt University (HUB) have generated ball-lightning in the laboratory - or, to be more precise, ball-lightning-like plasma clouds. The physicists produce luminous plasma balls above a water surface which have lifetimes of almost half a second and diameters of 10 to 20 centimetres.

(http://www.everything-science.com/images/stories/ball_lightning_idw.jpg)
[TD bgColor=#336699][FONT color=#ffffff][STRONG][EM]A ball-lightning-like plasma cloud is produced in an underwater discharge. (Photo: D. Lange, IPP)[/EM][/STRONG][/FONT]
[/TBODY][/TABLE][/P]
[P]Ball-lightning is described as a luminous phenomenon occurring during thunderstorms. It is a mystery, however, that they should be visible not as a brief flash, i.e. just for mi. . .


Title: Re: Ball-lightning in the laboratory
Post by: remcook on June 07, 2006, 06:46:00 AM
cool! 8)


Title: Re: Ball-lightning in the laboratory
Post by: Rxke on June 21, 2006, 09:29:32 AM
IMHO, too bad the scientists in the picture aren't wearing labcoats, bug-eyed with excitement....

I'm serious: it would send a message that yes, science can be exiting to young people.

Now you see two common guys just standing there, not even looking on in awe...  :(


Title: Re: Ball-lightning in the laboratory
Post by: remcook on June 21, 2006, 10:17:38 AM
I saw an article last week sais that the gee-wiz physics demos have an opposite effect: it shows that physics is completely incomprehensible. Maybe this photo is trying to show that you -yes YOU- too can make lightning in your basement! Unless you have anything flammable in your house, in which case it as a bad idea. Bad idea!


Title: Ball-lightning in the laboratory
Post by: chronostrg on May 08, 2008, 05:03:56 PM
Interesting, I wonder how many people have seen this and their retnas have 'burnt' the image in for a couple seconds even though it may have already passed, giving them the impression that it lasted for a few seconds. Is the same lighting that has been reported to 'roll' along the bottom of clouds.