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Comment: Re:The tubers are almost certainly not salty. (Score 1) 117

by Palpitations (#32938702) Attached to: First Halophile Potatoes Harvested

I'm guessing that they managed to coax the potatoes into maintaining their normal osmotic balance when watered with brackish water.

Wouldn't this lead to a build-up of salt in the soil itself? At some point, that's bound to cause problems... They don't call it "salting the earth" for nothing.

Comment: Re:Digital tracking? (Score 1) 120

by Palpitations (#29582805) Attached to: The Night Sky In 800 Million Pixels
I've done that with a moderate number of exposures.

In my experience, it didn't do much to make it look like a longer exposure. That may be because of the light pollution where I was, or the relatively small number of exposures I was toying with. It does, however, clean up some of the noise in the pictures. Not really an issue when you're only using ~20 second exposures, especially if you use a dark frame and a bias frame. For longer exposures, though, the noise starts adding up, and multiple exposures are a must.

I'm still saving up for a nice telescope and mount, so I don't have much experience with high end stuff - mainly just pointing my camera at the sky and shooting right now - so take all of that with a grain of salt. Give me a year to save up the money I need for a nice 8-12" SCT, a guidescope, and a few other things and hopefully I'll know more.

Comment: Re:Projection (Score 1) 120

by Palpitations (#29576767) Attached to: The Night Sky In 800 Million Pixels
Also, I hate to double post, but make sure you lock up the mirror on your camera if you have that option. Mirror slap is never good. I just picked up a nice Manfrotto tripod/head, but I still think it takes a few seconds for any vibrations to completely settle. Locking your mirror up should take care of that. It's a minor detail, but one worth mentioning.

Comment: Re:Projection (Score 2, Interesting) 120

by Palpitations (#29576743) Attached to: The Night Sky In 800 Million Pixels
1) It's been years since I did any work with film, so I'm afraid I can't help you there. I've just got a DSLR that I use now.
2) ~20 seconds. If you go very far beyond that, you'll end up with trails instead of nice clear shots. 30 seconds is passable, you'll just end up with tiny, tiny trails - probably not that noticeable unless you look closely. You may be able to stretch that out a bit more if you have near-superhuman vision, a geared tripod, and a steady hand, but I wouldn't count on it. That's not a bad thing though, there are some great images done that show the movement of the stars. Not every picture has to be tracked in order to be worthwhile.
3) Personal preference. I've taken some pictures at 18mm that I loved, and some at 200mm that made me just as happy. Experiment, and see what turns out catching your eye. Everyone has a different sense of aesthetics. What works for me may not work for you.

For any pictures you do take, I highly recommend the Astrometry group on Flikr. It's a bot that will match up your images with a massive database covering the night sky, and tag major features in your images for you. I certainly don't know everything in the sky I'm looking at when I decide to take a picture, so being able to upload it and have all the major features identified is incredible. In my experience, the people behind it are great as well, and very willing to share the datasets they use.

That said, if you want to get serious about it, you should look at picking up an equatorial mount. It's high on my list, right after a nice intervalometer.

Comment: Re:Not economically viable (Score 1) 484

by Palpitations (#29241893) Attached to: Solar Roadways Get DoT Funding

the only part their panels can replace is the upper layer (and only partially, as they don't seem to be counting paint).

You're assuming there would be paint.

FTFA: "The base contains power and data lines and is overlaid by the electronics strata that contains solar cells, LEDs and supercapacitors which would produce and store electricity while the LEDs would "paint" the surface with light."

I can't argue with most of what you said, I just thought I'd point that out.

Comment: Re:ISS (Score 1) 48

by Palpitations (#27451263) Attached to: 100 Hours of Astronomy Webcast Underway

You typed your zipcode into online submission form?

To be fair, that tells you when it will be overhead. You may still need to break out a compass with an inclinometer to find out where to actually expect it, and that can be a bit of work I suppose.

Of course, if you can get your bearings, you can make good estimations using nothing more than your own hands. Last time I tried (it's been a few years, come to think of it), I was able to estimate alt/az to within about 3-5 degrees... Not as good as many, but good enough for most things. Not everyone seems able to figure that out, though.

Comment: Re:Obama == Bush (corporate friend)? (Score 1) 546

by Palpitations (#26893943) Attached to: Will Obama's DOJ Intervene To Help RIAA?

Who said I didn't? I was responding to your statement of them being equal, not to whom you voted for.

If you'd rather not lose any freedoms then I hope you found someone else to vote for.> I took your second quote to mean that you didn't read the whole comment that I posted. When I make politically loaded statement, I often have people only make it halfway through my comments before responding - that's one of the hazards of being a critic of Democrats, Republicans, Libertarians, Greens, and everyone else - you're always going to offend someone and have them jump on you before you can finish.

I see your Dr. Chu and raise you a Eric "pro war on drugs/pro gun control" Holder ;)

You've got a point there. Gun control doesn't worry me too much, even if a lot of Democrats want it, they're not in a position to make it happen right now... The backlash would be too much, there is no way they'd push for it. The drug war thing does worry me a bit. I'm hopeful that Obama will push back against the DEA and raids on medical marijuana, and get Holder in line. There have still been raids, but it's a bit too early to say that it's business as usual. Give it a few months, and if that's still going on, I'll be pissed.

Comment: Re:Obama == Bush (corporate friend)? (Score 4, Interesting) 546

by Palpitations (#26893537) Attached to: Will Obama's DOJ Intervene To Help RIAA?

He's made some very good pledges about openness and anti-corruption measures, so now's the time for him to live up to them.

It may or may not be a token gesture, but it certainly makes me smile to read the White House's new Copyright Policy:

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It is indeed desirable to be well descended, but the glory belongs to our ancestors. -- Plutarch

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