Eye diseases and circulation problems can now be observed in full colour thanks to the development of a scanning laser ophthalmoscope (SLO) that operates simultaneously with low-power red, green and blue lasers. Dr Ayyakkannu Manivannan will report the latest test results on the SLO at the Institute of Physics Congress at Heriot-Watt University on Tuesday 25 March. He will demonstrate how the SLO system can reveal early retinal damage in diabetic patients and inflammatory macular disease in the elde
Nanocomposites for space
A microscopy technique originally developed to image the molecular-scale topography of surfaces is now helping engineers choose the right materials for a new generation of lightweight high-strength composites based on carbon nanotubes.
Light, conductive and nearly as strong as steel, carbon nanotubes are being combined with lightweight polymers to produce composite materials with properties attractive for use on future space vehicles. But choosing th
Mercury, that silvery liquid metal ubiquitous in switches, pressure gauges and thermometers, is an environmental bad-boy and toxic to humans through inhalation, skin contact and ingestion. It is easily spilled and can go unnoticed in aging lab equipment.
However, with new technology, mercury can be practically erased from the typical laboratory setting, reducing and even eliminating the environmental and health hazards, according to researchers at Los Alamos National Laboratory who present
Scrap tyres could provide an inexpensive source of raw materials for the chemical industry, according to Professor Paul Williams of the University of Leeds who will speak on Tuesday 25 March at the Waste Management conference, part of the Institute of Physics Congress at Heriot-Watt University.
Approximately 150 million scrap tyres are generated throughout Europe each year, about a fifth of those in the UK alone. Most of these are simply buried in landfills or accumulate in enormous scrap-ty
Vegetable oil similar to the stuff you use to cook your food may one day fill your cars engine. Researchers at the U.S. Department of Agriculture have developed a chemically modified version of the edible oil that shows promise as a cleaner, renewable alternative to petroleum-based motor oil, while enhancing its protective properties.
Veggie motor oil could eventually be produced cheaper than petroleum-based oil and may help reduce this countrys dependence on foreign oil, the re
ESAs Integral satellite is detecting gamma-ray bursts at a rate of nearly one per day, establishing itself as a key player in the hunt for these enigmatic explosions.
Launched in October 2002, Integral has just captured four bursts in the last four months right in the middle of its field of view. Such precision observations are providing scientists with a remarkable view of gamma-ray bursts, which occur randomly, fade within seconds, and yet shine with the intensity of millions