On Thu, 24 Feb 2011 09:52:15 +0000 (UTC), d
wrote:

On 23 Feb 2011 21:59:08 GMT
"Michael R N Dolbear" wrote:
Higher failure rate at the begining and close to the end of service
life

http://www.eng.nus.edu.sg/EResnews/0402/rd/rd_3.html

The bathtub curve is widely used in reliability engineering.
http://en.wikipedia.org/wiki/Bathtub_curve

Ah right. Thanks.

B2003
it must be waited 40 minutes last Wednesday at Euston, trying to get a
Northbound, abandoned the idea for a bus to Liv ST & the train from
there , Thank god for my free bus pass.