Density Gradients News Today : Breaking News, Live Updates & Top Stories | Vimarsana

You basically have no light, down to about half a mile to a mile, you have some diffuse light, but sea creatures often generate their own life. it's called biolum -- for example when the submarines are slipping along, and they pick up their transmitted from a tower. when they do send stuff down there, they have to be mindful of these kind of density gradients in the water. >> thank you so much, i think we learned a lot right here. >> it's interesting because the blue fin submersible, it doesn't need to see, per se, it can do a sonar map right there. using different types of technology. >> ever...

Difference between the hot oil and the colder water is creating density gradients so these dispersants aren't necessarily going to sink, they're going to travel in the oil column. when i hear b.p. say low toxici toxicity, this is not what the data sheets are really showing, it's not a very realistic picture. and what about the fish eggs that are in the water column now? for the crab eggs, for the oyster larvae. >> but this is a method that's getting endorsement by the epa? >> reporter: the epa only has to require these very old tests. so we have regulatory capture going on here where just beca...