The former professor of physics, Steven Jones, believes the spheres he has found in the dust from the World Trade Centre site match the spheres you get in a thermite reaction.

BBC: Q&A: The collapse of Tower 7

Reaction to the invention has been overwhelming positive on Twitter and YouTube - a site notorious for attracting some of the web's harshest feedback.

BBC: DIY Tardis looks bigger on inside with augmented reality

My first reaction was that this was yet another phishing scam, designed to take me to a site where I would hand over my Twitter credentials like a mug.

BBC: Twitter's most serious security crisis

The site's legendary efficiency comes from extracting the last drop of value from every chemical reaction.

ECONOMIST: BASF and the chemical industry

In reaction, tons of sites have sprung up to help people see and address privacy problems on the site, from ReclaimPrivacy.org to OpenBook.org.

FORBES: The privacy storm: Facebook capitulates with simplified privacy control settings