An international team of researchers has found a new way to switch magnetism that is at least 1,000 times faster than currently used in magnetic memory technologies.
Star Trek-style Tricorder medical scanners are a step closer to reality, say scientists, following the discovery of a new way of creating electromagnetic Terahertz waves - as currently used in full-body security scanners.
MIT scientists have come a big step closer to creating an explosives scanner that's safer than X-ray scanning and can detect a wider range of substances.
