Slashdot is powered by your submissions, so send in your scoop


Forgot your password?

Comment Fahrenheit 451? (Score 1) 90

It's like someone read Fahrenheit 451 and thought, "I could make a mechanical hound!" A few years ago I remember they made a fuel cell that could run on meat as well. Add a good gas chromatography and they'll have a viscious man eating robot dog!

Comment Re:How about protons instead of neutrons? (Score 2) 200

I guess I should ask what you mean by "pretty sure". Adding to large atoms are a lot easier than small ones. It's been a long time since I've read about it, but it's called "proton induced fission". Admittedly, most of the reading when you Google it is a bit heavy. I do know that if you crack U238 with a proton that all 3 daughter isotopes have a half life of 35 days or less (one is like an hour and a half) and their daughter isotopes are all stable.

Anyway, if you Google "proton induced fission" and "nuclear waste" together you'll see there are already papers proposing the idea, such as this one:

Comment How about protons instead of neutrons? (Score 1) 200

Seems like a stream of protons (which is really just hydrogen ions) could be fired at nuclear waste to get it to split without making the next thing down the chain so neutron heavy as to make it radioactive itself. I would like to know how boiling radioactive waste is supposed to drop the half life. If it does I have some physics to brush up on.

Comment Re: People living in the polar regions (Score 1) 567

When a photon is absorbed and then re emitted, the direction it's emitted is random. The effect would have little difference from being scattered. So yes, if it was done often then it would blur out anything you'd try to see from orbit. You're claiming a lack of understanding. Is there anything else I could clarify for you?

Comment Re: People living in the polar regions (Score 1) 567

I believe 1880 or 1890 was the first, but I could be wrong. I was trying to say the glaciers were receding without our help. I'm not saying they haven't accelerated, but it's implied that they wouldn't be receding without out us. To say it's re emitted often is an exaggeration. If that were the case it would impossible to make detailed IR images of Earth's surface from space, it would just be a blur. It would look like what blue light does in daytime, which is scattered a lot (I know, not exactly the same).

I'm fond of the Kenai Peninsula. Plan to move there in a couple years.

Comment Re: People living in the polar regions (Score 3, Interesting) 567

Having actually been there and visited a few of the glaciers, some of them have signposts that say how far they've receded. There's posts along the path with years on them. Thing is the posts go clear back to the late 1800's. Heading back in a couple weeks, I'll take pictures this time.

Slashdot Top Deals

I am not now, nor have I ever been, a member of the demigodic party. -- Dennis Ritchie