Feeds

Ball lightning is all in the mind, say Austrian physicists

Thunderstorms' magno-field causes brain to malfunction

A new approach to endpoint data protection

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. ®

The Essential Guide to IT Transformation

More from The Register

next story
Just TWO climate committee MPs contradict IPCC: The two with SCIENCE degrees
'Greenhouse effect is real, but as for the rest of it ...'
Asteroid's DINO KILLING SPREE just bad luck – boffins
Sauricide WASN'T inevitable, reckon scientists
Brit amateur payload set to complete full circle around PLANET EARTH
Ultralight solar radio tracker in glorious 25,000km almost-space odyssey
Boffins spot weirder quantum capers as neutrons take the high road, spin takes the low
Cheshire cat effect see neutrons and their properties walk different paths
NASA Mars rover FINALLY equals 1973 Soviet benchmark
Yet to surpass ancient Greek one, however
Famous 'Dish' radio telescope to be emptied in budget crisis: CSIRO
Radio astronomy suffering to protect Square Kilometre Array
prev story

Whitepapers

7 Elements of Radically Simple OS Migration
Avoid the typical headaches of OS migration during your next project by learning about 7 elements of radically simple OS migration.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Solving today's distributed Big Data backup challenges
Enable IT efficiency and allow a firm to access and reuse corporate information for competitive advantage, ultimately changing business outcomes.
A new approach to endpoint data protection
What is the best way to ensure comprehensive visibility, management, and control of information on both company-owned and employee-owned devices?