I would disagree with you, dgeake. True enough, the website has mentioned a wormhole is a link between a black hole and a white hole.
HOWEVER, we should not rely on one single source of infomation. Many other books and websites have mentioned different types of wormholes. Wormholes can also be two way.
I am not sure if a blackhole is a tear in space time. I'm not even sure if such a thing exists. Read everything with an open mind, don't be too quick to accept everything you read at once.
The dictionary definition of a wormhole is
"A theoretical distortion of space-time in a region of the universe that would link one location or time with another, through a path that is shorter in distance or duration than would otherwise be expected. "
Well. Anyway, i need to aplogise margot, wormholes DO have a gravitational pull. That is why exotic matter stabilises it, the anti-gravitational pull (push?) from negative mass will prevent it from collasping.
