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Comment: Re:Solar power? (Score 1) 241

by Khyber (#47513163) Attached to: Google Offers a Million Bucks For a Better Inverter

"On the other hand, if you want a solar-powered Chromebook, the inverter could be a deal-breaker on the weight."

You wouldn't need an inverter, really. In many cases, low-power laptops run on ~10VDC, so a direct solar panel connection with resistor would be roughly fine to hit the battery through its charge controller. For those needing ~20V, you just use a cheap-ass boost converter and resistor before you feed to the charging/power circuitry.

Been there, done that, made solar-powered headless laptop servers.

Comment: Re:"to not look inside the box" (Score 1) 241

by Khyber (#47513109) Attached to: Google Offers a Million Bucks For a Better Inverter

" Also, why they claim they will not open the box up."

And I would ask that I be allowed to personally observe my box during the entire time, if need be, to ensure that. That is all under the assumption I had such a device. I've seen it from AC-DC for LED drivers, but not that kind of efficiency in reverse.

Comment: Re:110 or 240v (Score 1) 241

by Khyber (#47512983) Attached to: Google Offers a Million Bucks For a Better Inverter

Just about any component after the transformer will work fine, frequency independent, minus things like oscillators, radio crystals, etc. resistors DGAF, caps DGAF as long as you match or are lower than its rated voltage, diodes are voltage drops and DGAF about frequency...

Do you even basic electronics?

Comment: Re:it's 240V in USA/Canada (Score 1) 241

by Khyber (#47512885) Attached to: Google Offers a Million Bucks For a Better Inverter

I just finished building and wiring up a full hydroponics building. You get ~277V, split-phase, and in reality, it's higher than that, because it's 120VRMS and upwards of 170V peak, so you're looking at a potential spread of 340V or more.

"There really isn't any such thing as 110V or 230V in the USA/Canada,"

From a technical standpoint, yes. From a practical standpoint, not really. RMS is good enough. Trust me, if the electronics we have were not that robust, they'd have been fried long ago. Hooray for tolerances.

Comment: Re:Wow. (Score 1) 203

by Khyber (#47445329) Attached to: Rocket Scientist Designs "Flare" Pot That Cooks Food 40% Faster

"Actually, with the fins being on the outside for this design, I think it would be less efficient compared to jetboil."

Nah. The fins up the side provide more surface area to capture waste rising heat. This also allows for better and more even dispersion of heat throughout the surface area of that which you are cooking, since instead of only heating the bottom you're getting the sides as well.

Jetboil still suffers from having the fins being confined to the bottom.

Comment: 7.5x that of copper (Score 1) 238

by Khyber (#47445285) Attached to: Scientists Have Developed a Material So Dark That You Can't See It

Man, I'd love that stuff cooling my LEDs! The tiniest bit of airflow over something like that would be all one needs to keep even intense arrays like the MK-R cool.

I wonder if this could be grown on the backside of an MCPCB, negating the need for a heat sink and allowing just a fan over it to cool.

Comment: Re:Ewww... (Score 2) 241

by Khyber (#47440943) Attached to: Texas Town Turns To Treated Sewage For Drinking Water

I don't think you fully comprehend my point. I'm only saying RO will easily remove the pharmaceuticals. You might still get other elements present besides oxygen and hydrogen, but you're not getting any molecular structure much larger than a water molecule through those pores, which would incidentally include pretty much every pharmaceutical ever made.

Comment: Re:Dude! Sounds like a real way to make some bread (Score 1) 159

by Khyber (#47439197) Attached to: Biohackers Are Engineering Yeast To Make THC

" You don't use the same yeast for wine as you do for beer, and that's different from the one you use for bread."

I do, and I get great results every time.

"Turbo" yeasts and specialty brewer's yeasts tend to suck. Fleischmann's active dry yeast? Works like a charm. I can even make 20% port non-fortified with that stuff.

For God's sake, stop researching for a while and begin to think!