To: Hawkmoon who wrote (3265 ) 11/15/2012 12:08:19 AM From: Maurice Winn 2 Recommendations Read Replies (1) | Respond to of 4326 Hawk, I know things can be improved, but these microbes are starting to seem like fussy children or zoo animals. In the good old days, we could show up to the zoo with feijoas, silverbeet, monkey apples, carrots, and the chimps and other monkeys would go nuts. Most people thought monkeys like nuts. Their food trays were full of uneaten nuts. By "go nuts" I mean they would go crazy. They'd grab stuff from us and run for it. Now, the signs all say "Do not feed the animals" which are no doubt given boring "nutritious" but probably cheap rubbish. I got told off for feeding a goat some perfectly good leaves in a London children's zoo in August. I suppose they would get people bringing in stupid things if they were allowed to do so. So I understand that "Oh no, not another load of iron. I'm sick of iron." might be the reaction of the microbes we want to encourage. Why don't we just start with iron sulphate and see if that really is the main missing ingredient? Monkeys who are actually starving would no doubt eat quite a lot of peanuts and do better than with nothing at all to eat, even though they'd prefer some monkey apples, silverbeet, and feijoas too. If iron really is the big problem for oceanic microbes, let's just start with that. Iron sulphate is really cheap to make. Heck, there is so much sulphur in decently grotty bunker fuel that it would form a lot of iron sulphate just by combustion if micro-fine iron was included. Iron and sulphur are really cheap too. Sulphur is a waste product from crude oil processing. sulfur.nigc.ir The whole project should be cheap. If you really want to move large amounts of iron into the ocean, you could do like fertilizer acid plants and burn pure sulphur in turbines, but instead of using just air, use micro iron with the sulphur. The turbine would move the vessel and the exhaust would feed the oceans. Carefully tuned, the exhaust would be mostly iron sulphate. It's better to start with the easy method. You could add mult-vitamin solutions later if they really go for the iron but lack a certain je ne sais quoi. Thinking about it, maybe you are right and putting a big tank on board and spraying FeSO4 into the exhaust might be easier than getting iron to float around in bunker fuel. But in the fuel would be easier if it can be made fine enough not to settle and to burn well. Mqurice