Detailed text transcripts for TV channel - CNN - 20100616:17:54:00
Robust. now, if you think about permanent magnets, we all know permanent magnet, i actually brought some here, you all know that these kind of magnets can be extremely strong. one has tried to close the oil spill by introducing a kind of mud into that spilling oil pipe. now, this kind of mud can be easily washed away. what you really would like to have something is a material which is very heavy and a material which is sticking together by itself, something like a concrete but that doesn't need to cure. >> help us. how would this work. we see these pictures. we see this hole. we see this well....