Technological innovation brings us the "Warmseat"

For slightly more practical help with your bike, why not visit www.smbbearings.com/BB_BRGS.htm

for a great article about replacing your bike's bottom bracket bearings, the photos are a real help too.
To help you get a better understanding of bearings & their performance on/in bikes,

check out www.smbbearings.com/SMBtechdata.htm

for loads of technical information & help on bearings.