Exactly this. You can use a 5A, 30000mA (yes, that's 30A) power supply at 5V - or, specifically, attach your phone's USB connector directly to your PC power supply's 5V rail - and it would charge and operate normally and safely. (in fact, internally, many PC USB ports are wired just like this - if just through a fuse)

I…

That's not helpful. That's just being an asshole.

I believe this is why it was called "guerrilla public service". ;) He wasn't employed by anyone. He didn't charge anyone. He did it all on his own (sans credited individuals in making the video). If he hurt himself, he'd have nobody but himself to blame. That's where the OSHA compliance administrator in you should…

Whaa? You can update palette frame by frame? Why, after 2 decades of development, haven't more tools taken advantage of this in their optimization? It seems like video converters find a common palette for the whole video, then dither it into a garbled mess. If the palette only applies to one frame at a time, video…

Actually, the Leaf's interior heating (as I drive) is generated by its own entirely separate heating loop with a separate set of coolant. The cooling system for motor/charger/controller ("inverter") is looped together, so all the under-hood heat (or lack thereof) moves in unison. If it were to heat the car, it'd have…

It's water cooled, and since there's no idle heat production, the only heat occurs during the hard acceleration (or when it's laying down said torque). Water can absorb a LOT of heat, too - as a good example, we use a huge water tank to test EVSEs in our shop at 10kW, and when it warms up after 10-15 minutes of that…

Try 4 independent, unconnected motors. Tesla's finally brushing what Mercedes did in the SLS AMG Electric:

If there's enough wind blowing, the plane doesn't need to be moving forward all that rapidly in order to stay afloat. The fight here is balancing all the wind forces in order to get that plane to start following its wheels instead of following the wind. It's a hell of a balancing act, but for me, watching this video…

Actually...

Seeing as though this video was likely actually taken in 1995 (did nobody actually notice the video/audio quality? Really?), I'm guessing this isn't the most up-to-date walk-through.

Enclose food and oil in a heated pod with a controlled vent valve on the side.

Spin the pod like a centrifuge while it gets its heat energy and vent through the radial post it's attached to. The food and oil will find its gravitational force (adjustable, too!) through the spinning of the pod by the centrifuge. The…

Actually, keeping it over 50% is good advice. Having it at 0% is still low enough to cause the chemistry to become damaged much quicker than if it were over 50% charged - it shuts down because the battery level is too low to reliably sustain operations (about 3.5V for lithium - which dips into the <3V territory pretty…

I think the jist of it, or at least the most real-world take-away from the article, is to plug it in whenever you're near a plug, as opposed to leaving it dead. I kinda have a saying, "if you love it, plug it in". It's far more damaging to leave a device sitting with a discharged battery (far more common than I care…

The charger circuit is actually in the phone itself, not the computer, wall adapter, 12v car plug, or whatever else you plug the USB cable into. The USB cable's only job is to supply +5V DC, no more, no less, and do nothing but supply a variable amount of current as demanded to maintain +5V. The phone does *all* the…

Blame the hidden comments. Only your comment actually showed up on the main page. Everyone else was just hopping on because it didn't look like it was answered.

Congratulations, a single person weighing a tenth the weight of a CAR did the same thing this CAR just did. I, uh... think you're missing the sense of scale here.

Apple, HP, Dell are based here in the US, designing products here. They *use* China as a (highly inefficient but, unfortunately, highly economical) manufacturing solution. This article/legislation is directed at companies *based* in China using Chinese R&D and merely sold here. Not to mention China has piss-poor R&D…

I'm not entirely sure hirensbootcd.org is run by Hiren himself... personally, I maintain my own relatively popular (but apparently not popular enough to make this list) Boot CD, called FalconFour's Ultimate Boot CD - based in part on Hiren's but designed to be much more robust and practical (including MiniXP at its…

The hell? That page is all corrupt... can you check that link? I think you posted a link to some kind of weird, poorly-developed mobile version of Amazon... see screenshot. Sounds interesting, but I can't even find a price on that weird page...

I totally understand. It'd be unfair if you just popped it in there because the editor decided "hey, I like this one too, so F the hivemind". :) If you (or anyone else) gives F4UBCD a try and writes an article on it, it'd be the first time that actually happens (that I'm aware of), and it would TOTALLY make my…