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Comment: Re:110 or 240v (Score 1) 228

by drinkypoo (#47515275) Attached to: Google Offers a Million Bucks For a Better Inverter

It seems contradictory that they're worried about power factor, and also want to force contestants to output nice clean sine waves. Best way to get a PF of 1.0 with cheap switching power supplies, is to send them a square wave...

The challenge is a challenge. The goal is clearly to produce usable power, not to need more filtering. While the requirements for this contest don't require grid-tie, that's something that can be implemented later.

Comment: Re:a question.... (Score 1) 54

by drinkypoo (#47514183) Attached to: Oso Disaster Had Its Roots In Earlier Landslides

I don't live there, but looking at some of the photos, is deforestation potentially part of the problem?

Yes. Don't listen to the sibling comment, which ignores the well-known fact that deforestation in fact was a contributing factor. Of course, if you actually wanted to know the answer to your question, you would have found it with google, dozens of times over.

Comment: Re:this is great news! (Score 1) 89

by drinkypoo (#47513131) Attached to: Open-Source Blu-Ray Library Now Supports BD-J Java

I have the world's slowest blu-ray player, an original Sony. BDP-S300, I think. It lacks both ethernet and performance. Sadly, the Raspberry Pi lacks SATA, which is what the unit uses to connect to the optical drive. That gives it hack value, though not with R-Pi. I'd probably have to shoehorn something Micro-ITX in there, or use a laptop motherboard, as the optical drive is smack in the center.

I've bought just one Blu-Ray movie because the player is so godawful slow and I have to use a crappy remote with it. Ideally I'd be able to run XBMC on Windows (XP or 7) on whatever I stuffed into the case, and then I could use the android remote app. Right now my entertainment system is a mk908 running Finless 1.4 or so and it leaves a lot to be desired. Playing discs is one of those things.

Comment: Re:I know this is /. but RTFA (Score 1) 228

by drinkypoo (#47513059) Attached to: Google Offers a Million Bucks For a Better Inverter

Go ahead and do lots of work with almost no chance of payment.

If you aren't already working on this, or don't already have a pretty good idea with at least a fair chance of succeeding, then you're probably not too smart if you decide to take this challenge on. So what? There are those who are working on solving this problem already. If they have the means to produce a product, they're already doing that. If not, then this will give them some money for production of prototypes for larger systems, and probably attract some investment dollars from Google.

Comment: About 4x beyond current production. (Score 1) 228

by Animats (#47511533) Attached to: Google Offers a Million Bucks For a Better Inverter

As an actual product available right now, there's this 250 watt inverter. from Enphase, intended to work with one solar panel. That's 54 cubic inches, or 12W/cubic inch. Google wants 50W/cubic inch, so Google is asking for 4x the power density. This one happens to be configured for 48VDC input, but that's not hard to change. It exceeds the efficiency limit set by Google.

Enphase sells those little inverters for a one-inverter-per-solar-panel system, where power is combined on the AC side. The inverter, at 171 mm x 173 mm x 30 mm, is a lot smaller than the panel it sits behind. Making it smaller won't have any effect on system size.

One big difference: Enphase offers a 25 year warranty on that unit. Google only wants to run for 100 hours. They'll probably get something that will pass their tests but wouldn't last a year in a real solar installation.

Comment: Re:you dont need biometrics for this at all. (Score 1) 87

by drinkypoo (#47511339) Attached to: Researchers Test Developer Biometrics To Predict Buggy Code

1. downtime is unacceptable for this application. this code controls so much, does so many things, and is so obscure (say it with me, payments processing subsystem) that to do ANYTHING to it is literally worse than pistol whipping the CEO's daughter.

Then you can't afford not to have a backup server and a development server. This point needs expansion :p

Comment: I know this is /. but RTFA (Score 5, Informative) 228

by drinkypoo (#47511257) Attached to: Google Offers a Million Bucks For a Better Inverter

Stupid objection the first: "This is worth a lot more than a million dollars."

Does Google own the intellectual property created during the competition?

No. Google is not requiring any IP or licenses be granted except a non-exclusive license to be used only for the purpose of testing the inverter and publicizing the prize. [...] However, in the spirit of advancing this power electronics community, Google may choose to make public some or all of the teamsâ(TM) high-level technical approach documents

Stupid objection the second: (something stupid about 12 volts)

Will be taking in 450 V DC power in series with a 10 Ω resistor
Must output 240 V, 60 Hz AC single phase power

I know that slashdotters don't RTFA, but seriously, all of you jaw-jacking about 12 volts or about how a million is chump change are a bunch of Useless McToolbags. STFU already.

Comment: Re:Why are Zorro cards worth anything at all? (Score 1) 185

by drinkypoo (#47507063) Attached to: The Almost Forgotten Story of the Amiga 2000

It also had a slow speed scsi interface that no-one used.

It was a good place to hang a scanner, of course.

I really honestly can't think of any Zorro cards I wish I had still.

If your goal is to play games, the obvious answer is a better disk interface with some non-resetting RAM on it that you could use for a RRAD:. That's a lovely thing to have in your system.

Comment: Re:Here we go... (Score 1) 419

by drinkypoo (#47506943) Attached to: MIT's Ted Postol Presents More Evidence On Iron Dome Failures

Israel has never shown themselves to be ready for peaceful coexistence

That is quite simply untrue. Israel has shown that consistently for decades.

Interrupting food shipments in order to deliberately keep an oppressed populace consistently underfed isn't just the opposite of peaceful, it's illegal.

Hamas is dedicated to the destruction of Israel; it's stated explicitly in their charter.

And Israel has demonstrated that they are dedicated to control of the entire region, through border expansion. Don't really give a shit about propaganda on either side.

Comment: Re:Here we go... (Score 2) 419

by drinkypoo (#47506925) Attached to: MIT's Ted Postol Presents More Evidence On Iron Dome Failures

No. The stated goals of hamas and other groups is to exterminate jews and wipe israel off the map. a "peace" agreements are just time to plan for those goals.

Yes, and the goal of Israel is to claim the entire region for the Israeli state. Two border expansions and an ongoing campaign of semi-starving the besieged populace next door suggest that this is in fact the case. And there is a sizable group of people who suggest that all Jews who do not feel the same are some sort of traitor, and that anyone who does not support Jewish dominance of the region is not just anti-Zionist, but an anti-Semite, making rational discussion impossible just as surely as invoking Godwin.

Meanwhile, this war is really not between the Jewish people and the Palestinians. The entire conflict has been reframed as a battle in the war between "The West" and Islam, or perhaps simply a shot, fired by the UK when they created the nation of Israel. You will note that the Jewish people already got kicked out of that region once. They laid claim to it, they attempted to take it away from the people who lived there already, they met with some success but were eventually ejected. The history of that region going back as long as we know about has been people killing other people for control of it, and now just look at it. Formerly lush and rich, now it's a bunch of sand and rocks over which people kill one another. It's lost all practical meaning, since it's now not particularly good for supporting human life. Of course, one meaning remains. As long as the people living there are fighting over some shitty sand in the shitty desert, they're not causing problems for anyone else.

This situation was deliberately engineered and now Israel and Palestine are playing precisely the game they were meant to play, for our benefit. Why else do you think the USA pours money into that hole? It's not because the leaders of the USA give a shit about Jews. They're largely the same camp of assholes who presided over WWII and delayed our entry into that conflict for economic reasons. Notably, we were selling Aluminum to Japan so they could make it into Zeroes, and selling fuel to Germany so they could drive across Europe — and yes, these profits were a minuscule drop in the bucket compared to the subsequent benefits of building up our manufacturing systems while our "allies" were bombed.

tl;dr: $

% A bank is a place where they lend you an umbrella in fair weather and ask for it back the when it begins to rain. -- Robert Frost