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.
filmIn Black Seahe is as audiences have never seen him before
MusicThe band accidentally called Londoners the C-word
Film 'I've never been comfortable on-screen', she says
Arts & Ents blogs
- 1 Shia LaBeouf claims he was raped during #IAMSORRY art installation performance
- 2 This letter from a reader explains why women can’t play football
- 3 'You should come to my house and eat cheeses with me': 4-year-old sends adorable love letter to girl at school
- 4 Scientists predict green energy revolution after incredible new graphene discoveries
- 5 Michael Buerk wishes he killed Jimmy Savile when he had the chance - by pushing him overboard a cruise ship
I'm A Celebrity 2014: Jungle security stepped up after murder and 'suspicious death' close to camp
Jennifer Lawrence scores first UK top 40 single with Hunger Games track 'The Hanging Tree'
Exodus Gods and Kings casting controversy: Ridley Scott would never cast 'Mohammad so-and-so from such-and-such' in lead role
Marilyn Manson denies involvement in shocking Lana Del Rey rape video
The Fall, series 2, episode 3 – TV review: The Gillian Anderson drama is starting to push the realms of plausibility, but who cares?
Obama: The only people with the right to object to immigration are Native Americans
Ukip says babies born to immigrants in the UK should be classed as migrants – which would include Nigel Farage’s own children
The young are the new poor: Sharp increase in number of under-25s living in poverty, while over-65s are better off than ever
Tamir Rice: 12-year-old boy playing with fake gun dies after being shot by Ohio police
Ukip mocked after mistaking Westminster Cathedral – for a mosque
Sarah Vine criticises lesbian mother Jack Monroe: 'If she was unsure about her sexuality, she should have taken greater precautions'