Feeds

Ball lightning is all in the mind, say Austrian physicists

Thunderstorms' magno-field causes brain to malfunction

Choosing a cloud hosting partner with confidence

Physicists in Austria say they have solved the conundrum of "ball lightning", mysterious glowing spherical apparitions which baffled boffins have struggled to explain for centuries.

According to Josef Peer and Alexander Kendl of the University of Innsbruck, there is in fact no such thing as ball lightning in reality. Rather, powerful magnetic fields created by ordinary lightning affect the brains of humans nearby so that they see things which aren't there.

According to Peer and Kendl's calculations, a certain type of long-lasting repetitive lightning strike emits magnetic fields very similar to those used in transcranial magnetic stimulation (TMS) - a medical technique use to hotwire activity in the brain.

“In the clinical application of TMS, luminous and apparently real visual perceptions in varying shapes and colors within the visual field of the patients and test persons are reported and well examined,” says Kendl.

Thus the right kind of lightning strike nearby affects people's brains, accounting for long-accumulated reports of mysterious "ball lightning" phenomena during thunderstorms. Scientists have always struggled to explain just how these strange glowing spheres would be generated and sustained: it now appears at least possible that they aren't, in any physical sense.

Apparently an artificially induced image in the brain is called a "phosphene". Kendl adds:

“An observer located within few hundred metres of a long lightning stroke may experience a magnetic phosphene in the shape of a luminous spot."

The physicist says that this is much the simplest and likeliest explanation for ball lightning.

“Contrary to other theories describing floating fire balls, no new and other suppositions are necessary," he says, uncompromisingly.

The two boffins' paper is to be published in the journal Physics Letters A. It can also be read here. ®

Remote control for virtualized desktops

More from The Register

next story
FORGET the CLIMATE: FATTIES are a MUCH BIGGER problem - study
Fat guy? Drink or smoke? You're worse than a TERRORIST
Renewable energy 'simply WON'T WORK': Top Google engineers
Windmills, solar, tidal - all a 'false hope', say Stanford PhDs
Rosetta probot drilling DENIED: Philae has its 'LEG in the AIR'
NOT best position for scientific fulfillment
SEX BEAST SEALS may be egging each other on to ATTACK PENGUINS
Boffin: 'I think the behaviour is increasing in frequency'
HUMAN DNA 'will be FOUND ON MOON' – rocking boffin Brian Cox
Crowdfund plan to stimulate Blighty's space programme
Post-pub nosh neckfiller: The MIGHTY Scotch egg
Off to the boozer? This delicacy might help mitigate the effects
I'M SO SORRY, sobs Rosetta Brit boffin in 'sexist' sexy shirt storm
'He is just being himself' says proud mum of larger-than-life physicist
NASA launches new climate model at SC14
75 days of supercomputing later ...
LIFE, JIM? Comet probot lander found 'ORGANICS' on far-off iceball
That's it for God, then – if Comet 67P has got complex molecules
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Choosing a cloud hosting partner with confidence
Download Choosing a Cloud Hosting Provider with Confidence to learn more about cloud computing - the new opportunities and new security challenges.
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.