Friday 27 November 1998
Basil Swanson from the Los Alamos National Laboratory in the United States isolated the natural protein within cell membranes that binds to cholera toxin and embedded the receptor in an artificial membrane coating a glass bead. When a cholera toxin molecule binds to the membrane it causes a reaction that emits a red light from the bead. New Scientist reports that the US Army is studying a version of the test to see if it can be used on the battlefield to detect the use of biological weapons.
A CERAMIC pot thought to be for separating curds from whey might actually have been an early soldering device used to create the intricate metalwork patterns of the Bronze Age. How metalworkers created the delicately soldered knots and scrolls of wire has been a mystery because of the difficulties of creating a flame hot enough to melt metal yet small enough to be handled easily. Jacqui Wood, an archaeologist who runs the Cornwall Celtic Village, a reconstruction of a Bronze Age village, studied a pot with its sides riddled with holes that was thought to be a device for straining curds. The inside, however, was vitrified, indicating repeated heating. When she put a lit candle underneath, a flame 20 centimetres high shot from the top - just the sort of strong yet localised heat needed for soldering metal.
BREAKFAST CEREALS and bread are being contaminated with increasing numbers of small beetles and mites, according to a report in New Scientist. As the insects become resistant to pesticides, their rising numbers are posing problems for cereal manufacturers.
Ken Wildey of the Government's Central Science Laboratory in York found 81 per cent of the 279 grain stores he surveyed contained mites and 27 per cent were infested with beetles. He also found that 21 per cent of cereal-based foods contained mites, some of which could have been alive as his test killed the insects.
GlastonburyWI to make debut appearance at Somerset festival
TV reviewIt has taken seven episodes for Game of Thrones season five to hit its stride
Arts & Ents blogs
- 1 Man on naked bike ride gets ejected after becoming aroused
- 2 Fifa corruption: Europe plots to stage an 'alternative World Cup' in place of Russia 2018
- 3 How much sex should I be having?
- 4 Jaden Smith wears gender fluid dress to high school prom with Hunger Games actress
- 5 Betting company 'refuse to pay' after student wins £1,000 from 50p bet on Roger Federer
The 1975 leave social-media after tweeting cryptic comic strip hinting at break up
Britain's Got Talent 2015 final: Winner Matisse had secret dog double, says owner Jules O'Dwyer
Britain's Got Talent 2015 final: Vote reveals Jules O'Dwyer beat Jamie Raven by just 2% despite using 'stunt dog double'
Top Gear to follow Have I Got News For You format with 'different host for each episode'
Britain's Got Talent final 2015: Ofcom receives 90 complaints about Alesha Dixon and Amanda Holden's 'revealing dresses'
Migrants in Kos: Photos show real tragedy after Brits abroad complain of 'awkward' holidays
British tourists complain that impoverished boat migrants are making holidays 'awkward' in Kos
Michael Gove determined to scrap the Human Rights Act – even if Scotland retains it
Thousands of teenage girls enduring debilitating illnesses after routine school cancer vaccination
Threat to scrap Human Rights Act could see UK follow Nazi example, warns UN official
Why this year's general election was the most unfair in Britain's history