Approved

A better way to make holograms

HOLOGRAPHY is a useful technology, but somehow faintly disappointing. The fantasy is of a “Star Trek” style holodeck, or even the less ambitious idea of three-dimensional television pictures. The reality, for the man or woman in the street, is smudgy images that act as security features on credit cards, passports Read more…

By admin, ago
Approved

A wild idea about paying for conservation

MEERKATS are endearing creatures. Indeed, they are so endearing that they have been turned into characters in a long-running series of advertisements on British television for a price-comparison website. But nothing comes from nothing. Thirty years ago, few non-zoologists would have heard of these social mongooses and the joke would Read more…

By admin, ago