In reply to UKC Articles:
Modern bolt belays do not need to be equalised and equalisation will rarely be achieved anyway. The second bolt is to provide redundancy and an extra clipping point for convenience, common practice is to position one bolt for clipping in direct with a 60cm sling and use the rope on the other bolt. The DAV recommend alternatively using the rope to clip in series and the belay device on one of the bolts.
Climbing ropes aren´ t by any standards "extremely strong", they hold about 1/3rd to 1/2 of what any modern bolt can withstand.