I saw an article in the 1970s about this, about using rebar as electrodes and growing hemisphere domes.
Then years later there was another article: there were no mineral deposits, instead the concrete was made of coral. Apparently something about the electrode was attracting the free-swimming coral larvae (planulae) to attach to the metal instead of to the usual rock. The technique might work great, but it won't work in cold seas or fresh water where there are no coral reefs to supply the larvae. On Mon, 15 Jan 2007 [EMAIL PROTECTED] wrote: > Seacrete (I don't know if this name is dominant) is a > concrete like, limestone like, deposit that will collect > on anodes immersed in seawater. This could be a cheap and > durable building material. My source didn't say if ocean > metals were deposited on the associated cathodes or could > be with modifications. > > Aloha, Charlie > (((((((((((((((((( ( ( ( ( (O) ) ) ) ) ))))))))))))))))))) William J. Beaty SCIENCE HOBBYIST website billb at amasci com http://amasci.com EE/programmer/sci-exhibits amateur science, hobby projects, sci fair Seattle, WA 425-222-5066 unusual phenomena, tesla coils, weird sci
