The Brown researcher thinks the particles are disappearing into the fireball's core and reappearing as thermal radiation, just as matter is thought to fall into a black hole and come out as "Hawking" radiation.

BBC: Artist's representation of a black hole,

In this study, the team tried to change these proteins and reduce the allergic properties of the nuts by subjecting them to gamma radiation and thermal processing.

BBC: NEWS | Health | Nut test 'shows smallest traces'

Utility-scale concentrating solar power (CSP) systems that produce electricity using lenses or mirrors to focus radiation on thermal collectors or photovoltaic cells draw criticism from environmental groups for taking up too much desert land, thus displacing certain animal and reptile species.

FORBES: Renewable Energy Delusions: Getting A Real Grip On Alternatives

The Australian research focused on the thermal effects or specific absorption rate (SAR) of radio frequency radiation - a measure of its actual effects on brain tissue, whereas the earlier study simply looked at electromagnetic radiation levels.

BBC: Hands-free mobiles given safety boost