London, July 23 : Building the pixels of flat-panel displays like tiny telescopes, similar to a design invented by Isaac Newton, could make them much more power efficient, or make screens easier to read in direct sunlight.

Though today’s dominant display technology is the thin, cheap and durable liquid crystal display panel (LCD), the bulk of the light created by a screen’s backlight is wasted, and never reaches the viewer.

The rear layer of an LCD produces light that passes through individual pixels, whose brightness is controlled by small liquid crystals that swing round like tiny shutters.

London, July 23 : A woman has launched a global hunt to track down 500 Osamas, and has already turned up with 44.

Doctor Farrah Jarral is travelling the world searching for men who share their first name with terror chief Osama Bin Laden, but do not have his devilish designs.

She’s asking each of them to write down something they love on a piece of cardboard.

According to The Sun, pictures of her Osamas are being posted on the web and her search is being filmed for a Channel 4 documentary.

A recent

London, July 23 : A team of scientists have scanned 2 kilometres of a soft-rock outcrop at the Fumanya site in the southern Pyrenees in Spain with the help of a laser, to illuminate fragile dinosaur footprints, which date back to about 70 million years ago.

According to a report in New Scientist, Phil Manning of the University of Manchester, UK, and his team scanned the surface with LIDAR - a laser technique that maps features in a similar way to radar.

The footprints, at the Fumanya site in the southern Pyrenees in Spain, record the passage of huge long-necked dinosaurs called titanosaurs across a muddy area about 70 million years ago.

London, July 23 : The Chinese Railway Ministry is starting the world’s fastest train service next Friday, linking Beijing with one of China''''s Olympic co-host cities, nearby Tianjin.

Zhang Shuguang, head of the Ministry''''s Transport Bureau, said that the new Chinese trains could ferry passengers at the speeds reaching 350 kilometres per hour.

He said that the trains, which will have aircraft-like cabins rather than traditional carriages, have reached 394kph in tests.

"Its operational speed is the fastest in the world. It''''s very comfortable and quiet. There''''s a French train that has gone 500kph in tests, but only in tests," New Scientist magazine quoted him as saying.

London, July 23 : A new study has found out that chewing sounds from ravenous sea urchins cause ambient underwater noise on rocky reefs, which becomes a hundred times louder just before dawn and just after dusk.

According to a report in New Scientist, Craig Radford and his colleagues at the University of Auckland, New Zealand did the study.

The team recorded the sounds made by individual reef animals in the lab, and then compared them with the dominant sound in the natural reef din.

The urchins hide in crevices during the day, out of sight from predators, and emerge to feed at dusk.