News articles tagged with 'mechanical' (Page 6)
Engineers create carbon nanopipettes that are smaller than cells
— 17 Jan 2008 06:28 | HealthUniversity of Pennsylvania engineers and physicians have developed a carbon nanopipette thousands of times thinner than a human hair that measures electric current and delivers fluids…
Smaller is stronger, now scientists know why
— 2 Jan 2008 21:28 | PhysicsAs structures made of metal get smaller - as their dimensions approach the micrometre scale (millionths of a metre) or less - they get stronger. Scientists discovered this phenomenon…
Are we built of glass?
— 1 Jan 2008 21:35 | BiologyIn 2001, their extensive examinations of human lung cells led Ben Fabry and Jeffrey Fredberg, two scientists at the Harvard School of Public Health, to ask this provocative question.…
Glasgow pays tribute to its most illustrious scientist
— 13 Dec 2007 20:34 | PhysicsThe University of Glasgow is to mark the centenary of the death of its most illustrious scientist at a wreath-laying ceremony in Westminster Abbey on Monday 17 December. University…
NIST demonstrates fatigue effects in silicon
— 4 Dec 2007 02:25 | PhysicsResearchers at the National Institute of Standards and Technology (NIST) have demonstrated a mechanical fatigue process that eventually leads to cracks and breakdown in bulk silicon…
High Q nanowires may be practical oscillators
— 2 Dec 2007 17:51 | PhysicsNanowires grown at the National Institute of Standards and Technology (NIST) have a mechanical 'quality factor' at least 10 times higher than reported values for other nanoscale devices…
Heftier atoms reduce friction at the nanoscale
— 2 Nov 2007 06:50 | PhysicsA research team led by a University of Pennsylvania mechanical engineer has discovered that friction between two sliding bodies can be reduced at the molecular, or nanoscale, level…