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.
TV review Nick Hewer, the man whose eyebrows speak a thousand words, is set to leave The Apprentice
Film The critics but sneer but these unfashionable festive films are our favourites
TV We're so close to knowing what happened to Oliver Hughes, but a last-minute bluff crushes expectations
Arts & Ents blogs
- 1 Nigel Farage: Me vs Russell Brand on Question Time – he's got the chest hair but where are his ideas?
- 2 Harry Potter fans can apply to the Hogwarts-inspired College of Wizardry
- 3 Jessica Chambers: 19-year-old woman 'doused with lighter fluid and burned alive' in the US
- 4 Russell Brand calls Nigel Farage 'poundshop Enoch Powell' in BBC Question Time debate
- 5 Orange Wednesdays are no more
Peter Lik: The self-proclaimed 'fine-art photographer' whose work sells for millions
The best underrated Christmas movies from Love, Actually to While You Were Sleeping
Grace Dent on TV: The Lost Honour of Christopher Jefferies was a beautifully shot, immensely considered drama
The Lost Honour of Christopher Jefferies, review: Jason Watkins is brilliant, but real victim Joanna Yeates is reduced to a footnote
Marilyn Manson denies involvement in shocking Lana Del Rey rape video
Disgruntled RBS worker writes hilarious open letter to Russell Brand after anti-capitalist publicity stunt leaves him hungry
Shock poll shows voters believe Ukip is to the left of the Tories
Nigel Farage's approval rating hits 'record low' as popularity suffers in wake of Ukip sex scandal
Nigel Farage defends Kerry Smith 'ch***y' comment: 'If you are going for a Chinese, what do you say you’re going for?'
Ukip candidate jokes about 'shooting peasants' in racist and homophobic rant
Pakistan school attack live: Taliban kill at least 132 children in 'horrifying' massacre