cybercuzco

cybercuzco t1_ivm0eyx wrote

Corrosion comes from oxygen. If you use up all the oxygen corrosion stops. So in normal water the oxygen in the water comes from the air and as the water moves it brings fresh oxygen to the area being corroded. If you put the thing in mud or peat now the water can’t move so no fresh oxygen is being brought in.

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cybercuzco t1_iuhpnw6 wrote

Actually there are, but they are locked up in limestone rock in the earths crust. That limestone was mostly laid down by coral reefs over billions of years. As we add carbon to the atmosphere we make the oceans more acidic, and they start dissolving that limestone wherever it is under the ocean, potentially creating a runaway feedback effect. Have a nice day.

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cybercuzco t1_iuefmgp wrote

At the way we are going we are on track for Venus. Natural processes sequester a billion tons a year. We release 45 billion tons. That 45 number is increasing every year, not decreasing. Even if you could snap your fingers and all global electricity and transportation was electric and renewable we would still be emitting like 20 billion tons a year

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cybercuzco t1_itx9gz0 wrote

It would not be difficult mein Fuhrer! Nuclear reactors could, heh... I'm sorry. Mr. President. Nuclear reactors could provide power almost indefinitely. Greenhouses could maintain plantlife. Animals could be bred and slaughtered. A quick survey would have to be made of all the available mine sites in the country. But I would guess... that ah, dwelling space for several hundred thousands of our people could easily be provided." "Well I... I would hate to have to decide who stays up and who goes down." "Well, that would not be necessary Mr. President. It could easily be accomplished with a computer. And a computer could be set and programmed to accept factors from youth, health, sexual fertility, intelligence, and a cross section of necessary skills. Of course it would be absolutely vital that our top government and military men be included to foster and impart the required principles of leadership and tradition. Naturally, they would breed prodigiously, eh? There would bemuch time, and little to do. But ah with the proper breeding techniques and a ratio of say, ten females to each male, I would guess that they could then work their way back to the present gross national product within say, twenty years."

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cybercuzco t1_itvgvnl wrote

This is going to keep happening until we get our collective emissions of CO2 below a billion tons per year. Thats how much earths natural processes sequester. Currently we are at about 45 billion tons per year of emissions, and the 45 billion number is still increasing at an accerating rate. So think of it like were in a car, and we're going 45 MPH and your foot is actively moving to push the gas pedal down more except theres no floor to hit and your leg can keep pushing it further forever. The first step is going to be stopping pushing down further on the gas pedal. That gets us to a constant acceleration of emissions, then we need to stop pushing on the gas pedal altogether, then our car is only careening towards the cliff at a constant speed. Then we need to move our foot over and start pushing on the brakes. Were probably close to "stopping actively moving the gas pedal further down" and 10 years away from "leaving our foot on the gas where it is" and maybe 50-100 years away from "taking our foot off the gas entirely" and probably another hundred years from "pushing on the brakes"

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cybercuzco t1_is2kpvi wrote

The exit velocity is .5c but I wonder how close to c this material got. We could be seeing time dilation effects. Presumably as it comes out of the gravity well its going to slow down, so if they see it going half the speed of light now, it must have been going really close to the speed of light at closest approach

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cybercuzco t1_irbm2zw wrote

I’m just waiting for them to start growing giant sheets of cellulose. If you unrolled a tree the Cambrian layer is all that is really growing. Hook it up to the right plumbing and nutrients and you can grow an arbitrary sized sheet of cellulose. The sheet gets shaved off in 1/8” thicknesses every so often to make plywood out of it.

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