28/08/2004

Siemens Warns of Possible Hearing Damage from Mobile Phones

The mobile communication group of Siemens AG – Siemens mobile for short – has warned about a software-related defect in its 65 product series (C65, CX65, M65, S65, SL65 as well as all provider variations such as the CV65, ...

Light oscillations become visible

The human eye can detect changes in the intensity of light, not however the wavelength because light oscillates too fast (approximately 1000 trillion times per second). An international collaboration led by Ferenc Krausz ...

Chip-scale atomic clock

The heart of a minuscule atomic clock---believed to be 100 times smaller than any other atomic clock---has been demonstrated by scientists at the Commerce Department's National Institute of Standards and Technology (NIST), ...