" reduce those numbers to likely engineering numbers of 20% efficiency, 600W incident solar radiation per square meter,"
Well, your math is already off because 600w isn't 80% of solar insolation at 1000w.
"6-8 hours of direct sun per day "
Again, well off your 20% mark. 9.6 hours is 80% of 12 hours.
"1000W incident solar radiation per square meter (also wildly optimistic)"
That's TYPICAL AT NOON. Not even close to wildly optimistic, and includes atmospheric filtering but does not include cloud cover or lat/long. In many places, that level of insolation can be sustained starting about 9AM-4PM - 7 hours. The rest of the daylight hours would make up easily for the lower levels of light.
"Assume 40% efficiency (wildly optimistic)"
25% efficiency cells are quite commonplace now, and those were commercial-only due to price until about a decade ago. 40% shouldn't be that far off from now, given the recent leaps we've had in semiconductor manufacturing and research.
Are you going to keep spouting off nonsense or are you actually going to pay attention to studies we did almost two decades ago that showed a couple of Arizona-sized solar plants with today's technology could power the world (excepting vehicles.)
"Go and make up a bill of material for a solid, working, code compliant solar PV solution for your home, or get a quote on one that does not discount financial incentives, so we have a true cost, and then come back with a real argument. "
Already have, it's what runs my research facility. Not my home. I don't pay electricity bills (nor water, gas, or sewage,) that's included in the set monthly.
And it didn't cost much at all to fit the research facility.
Oh, and I do this internationally (that's my UK facility. I have one in Australia one here in the USA, and one in Morocco.) I know exactly what I'm talking about. I'm globally licensed. Are you? No? Thought so.
"Did you sample your office full of identical models from the same manufacturer to come up with that statistic?"
I build every computer myself. What identical model? What fucking manufacturer? This is slashdot, if you aren't building your own system, you should be shutting the fuck up.
Did you bother to ensure your brain was functioning this morning before making such a smart-ass and obviously wrong question?
"Facts are facts. Solar is clean, diverse, expensive and unreliable"
You're absolutely wrong on the last two. The fucking sun rises and falls every day, that's goddamned reliable. Solar panels are so cheap that I could power my entire house (not including Air Conditioning) for $0.60/w or LOWER.
"There is also a point where it causes problems for the grid that will require significant waste or expense to alleviate."
What the hell are you talking about? Oh, you mean lower base loads? Guess what? To prevent the inrush of power, THE OWNER OF THE PANELS can install a very simple box to simply not give power back to the grid to avoid overloading it. The cost for this solution is about $5. What waste? All that solar we're not collecting and utilizing already? Give me a break.
You don't know what the hell you're talking about, and half of your words are weasel words.
"You have to TEST this combo on many different machines."
I'm calling hoax as fuck on this whole thing, but for just your microphone and speakers, the majority of laptops are using RealTek. Bare metal for that shouldn't be too hard to handle, as the driverset remains the same across all AC97 models and HD models. Two compliant bare-metal drivers shouldn't be too hard to fit in. Now, transmitting over ultrasonic is a whole different beast, and to do this through a supposedly truly airgapped room via noise should be impossible, as real airgaps will easily kill those frequencies.
I don't give blatant trolling any thought. Airgapped room? You're not bypassing walls at those frequencies, not with laptop speakers or internal computer speakers. Even if you had speakers powerful enough to get past that, you'd need a hellaciously sensitive microphone on the other side, and equally powerful speakers to transmit back if desired. Can we say feedback loop? Not only must the microphones deal with trying to pick up a faint noise through an airgap, they're also trying to ignore the noise of their own respective speakers to even try picking up an audio signal on the same frequency.
Pwn2Own or not, the guy fails at basic acoustic physics. Too easy of a troll to spot.
"If you are working with a modern laptop that's not an option. "
Actually, it's a very easy option. Usually the microphone cable (and conveniently, the camera cable if there's a bezel camera) are directly underneath the keyboard. In most non-Apple laptops, that's easy access with just a few underside screws and under-battery screws. And funnily enough, you usually get speaker access while going for those cables anyways, so it's an all-in-one trip maybe involving 8 or 9 screws.
Sorry, that sort of acoustic coupling is bound to be loaded with errors. You might be lucky to get 16 BYTES per second, and even then, those speakers aren't powerful enough to transmit very far.
Airgapped room? Those frequencies from laptop or regular internal computer speakers aren't going to make it past the walls.
The new RoTT blows away BattleField and Cal of Duty left and fucking right. A real soundtrack, real choice of character, awesome weaponry..... And people wonder why I still play old games like Doom/Heretic with the new mods. These older than dirt games kick the pants off of newer games.
"If you think the 'stuff that ships with my food production systems is FLAWLESS' you are an idiot who doesn't understand the way the world works."
No, you're an idiot that doesn't understand how my system works. But that's okay, it's pretty much above your level in the first place because it all happens in pure hardware logic.
"We'll soon reach a point where autonomous vehicles are orders of magnitude less likely than human-driven vehicles to have an accident."
No, we will not. You're too ignorant to think of the other thousands of extraneous factors that can make things go wrong outside of both human and computer control. Like metal fatigue causing physical wear and tear on brakes, rotors, axles, etc.
Camfrog lies its ass off too. That 38KB/stream figure is in its lowest-resolution mode. Regular mode at a full 30FPS with lots of movement is pushing about 80KB/s and Super mode is well past 140KB/s.
Also, plenty of rooms with well over a thousand people in there. All broadcasting and viewing each other (assuming they have the screen real estate.)
" If you have the guts to condemn someone to die, I think you should also have the guts to execute that penalty."
Looks like you know nothing about the justice system. The jury only makes findings of innocence or guilt. The judge does the condemnation by issuing the sentence.
Slashdot Mirror
" reduce those numbers to likely engineering numbers of 20% efficiency, 600W incident solar radiation per square meter,"
Well, your math is already off because 600w isn't 80% of solar insolation at 1000w.
"6-8 hours of direct sun per day "
Again, well off your 20% mark. 9.6 hours is 80% of 12 hours.
"1000W incident solar radiation per square meter (also wildly optimistic)"
That's TYPICAL AT NOON. Not even close to wildly optimistic, and includes atmospheric filtering but does not include cloud cover or lat/long. In many places, that level of insolation can be sustained starting about 9AM-4PM - 7 hours. The rest of the daylight hours would make up easily for the lower levels of light.
"Assume 40% efficiency (wildly optimistic)"
25% efficiency cells are quite commonplace now, and those were commercial-only due to price until about a decade ago. 40% shouldn't be that far off from now, given the recent leaps we've had in semiconductor manufacturing and research.
Are you going to keep spouting off nonsense or are you actually going to pay attention to studies we did almost two decades ago that showed a couple of Arizona-sized solar plants with today's technology could power the world (excepting vehicles.)
"Go and make up a bill of material for a solid, working, code compliant solar PV solution for your home, or get a quote on one that does not discount financial incentives, so we have a true cost, and then come back with a real argument. "
Already have, it's what runs my research facility. Not my home. I don't pay electricity bills (nor water, gas, or sewage,) that's included in the set monthly.
And it didn't cost much at all to fit the research facility.
Oh, and I do this internationally (that's my UK facility. I have one in Australia one here in the USA, and one in Morocco.) I know exactly what I'm talking about. I'm globally licensed. Are you? No? Thought so.
Given the brightness hasn't dropped more than 10 nits, I'll say 80% in 2019.
A real secure air gapped room allows NOTHING in or out without permission. This includes sound.
I know someone who will never obtain a security clearance.
"Did you sample your office full of identical models from the same manufacturer to come up with that statistic?"
I build every computer myself. What identical model? What fucking manufacturer? This is slashdot, if you aren't building your own system, you should be shutting the fuck up.
Did you bother to ensure your brain was functioning this morning before making such a smart-ass and obviously wrong question?
Everybody better let Rockstar Games know that you think they're assholes for this crap.
Cause that trademark and brand damage, watch the real Rockstar file a huge suit in return regarding trademarks.
"Facts are facts. Solar is clean, diverse, expensive and unreliable"
You're absolutely wrong on the last two. The fucking sun rises and falls every day, that's goddamned reliable. Solar panels are so cheap that I could power my entire house (not including Air Conditioning) for $0.60/w or LOWER.
"There is also a point where it causes problems for the grid that will require significant waste or expense to alleviate."
What the hell are you talking about? Oh, you mean lower base loads? Guess what? To prevent the inrush of power, THE OWNER OF THE PANELS can install a very simple box to simply not give power back to the grid to avoid overloading it. The cost for this solution is about $5. What waste? All that solar we're not collecting and utilizing already? Give me a break.
You don't know what the hell you're talking about, and half of your words are weasel words.
~Lighting research director
"You have to TEST this combo on many different machines."
I'm calling hoax as fuck on this whole thing, but for just your microphone and speakers, the majority of laptops are using RealTek. Bare metal for that shouldn't be too hard to handle, as the driverset remains the same across all AC97 models and HD models. Two compliant bare-metal drivers shouldn't be too hard to fit in. Now, transmitting over ultrasonic is a whole different beast, and to do this through a supposedly truly airgapped room via noise should be impossible, as real airgaps will easily kill those frequencies.
Yea, and how close do you have to be with that iPhone to get communications established?
The problem of distance between the acoustic couplings always leads to reduced bandwidth in the face of low power.
How much power is going through laptop speakers, again?
How much of that is actually translated to sound?
I don't give blatant trolling any thought. Airgapped room? You're not bypassing walls at those frequencies, not with laptop speakers or internal computer speakers. Even if you had speakers powerful enough to get past that, you'd need a hellaciously sensitive microphone on the other side, and equally powerful speakers to transmit back if desired. Can we say feedback loop? Not only must the microphones deal with trying to pick up a faint noise through an airgap, they're also trying to ignore the noise of their own respective speakers to even try picking up an audio signal on the same frequency.
Pwn2Own or not, the guy fails at basic acoustic physics. Too easy of a troll to spot.
"If you are working with a modern laptop that's not an option. "
Actually, it's a very easy option. Usually the microphone cable (and conveniently, the camera cable if there's a bezel camera) are directly underneath the keyboard. In most non-Apple laptops, that's easy access with just a few underside screws and under-battery screws. And funnily enough, you usually get speaker access while going for those cables anyways, so it's an all-in-one trip maybe involving 8 or 9 screws.
I've used my 32" Samsung TV as a monitor since day one back in 2008, clocking 12 or more hours daily. Still pretty good backlighting!
Sorry, that sort of acoustic coupling is bound to be loaded with errors. You might be lucky to get 16 BYTES per second, and even then, those speakers aren't powerful enough to transmit very far.
Airgapped room? Those frequencies from laptop or regular internal computer speakers aren't going to make it past the walls.
Give me a break, slashdot.
People are claiming they had to put their cats down, thinking this was due to the smell.
I smell some masterful trolling about to happen.
Oh, wait, that's this Dell in my lap.
The new RoTT blows away BattleField and Cal of Duty left and fucking right. A real soundtrack, real choice of character, awesome weaponry..... And people wonder why I still play old games like Doom/Heretic with the new mods. These older than dirt games kick the pants off of newer games.
"27-inch IPS displays with a 2560x1440 resolution."
" there isn't actually anyone selling a 27" display at higher resolution, at least not at a price exceeding the price of the complete iMac. "
Man, you must be really ignorant of places like Pricewatch or Newegg.
"One has 3.2 GHz quad core i5, the other a cheap 1.7 GHz dual core i3. Apple doesn't even put those into their cheapest laptops."
Umm, excuse me? The MacBook Air does include i3 processors.
Sssshhhhh, don't upset it. The brain is only living up to the name.
'If this is true, it might explain a lot."
It is true. I've done a lot of work with Nichia. They are absolutely STRICT.
"If you think the 'stuff that ships with my food production systems is FLAWLESS' you are an idiot who doesn't understand the way the world works."
No, you're an idiot that doesn't understand how my system works. But that's okay, it's pretty much above your level in the first place because it all happens in pure hardware logic.
"There's no software that ships with critical bugs these days."
You'd better believe the stuff that ships with my food production systems is FLAWLESS.
When an entire country's population relies upon your tech to even stay alive, you make sure your shit works.
And I work on a budget a billionth Apple's worth.
What's their fucking excuse?
"Didn't you notice it's always the same groups that release your TV shows?
LOL, ASAP, AFG, DIMENSION, mSD?"
And well before those fucking amateurs we had PhrozenICE, EZWarez, and more.
Give me a break, child.
"We'll soon reach a point where autonomous vehicles are orders of magnitude less likely than human-driven vehicles to have an accident."
No, we will not. You're too ignorant to think of the other thousands of extraneous factors that can make things go wrong outside of both human and computer control. Like metal fatigue causing physical wear and tear on brakes, rotors, axles, etc.
Camfrog lies its ass off too. That 38KB/stream figure is in its lowest-resolution mode. Regular mode at a full 30FPS with lots of movement is pushing about 80KB/s and Super mode is well past 140KB/s.
Also, plenty of rooms with well over a thousand people in there. All broadcasting and viewing each other (assuming they have the screen real estate.)
And this is a global piece of software.
" If you have the guts to condemn someone to die, I think you should also have the guts to execute that penalty."
Looks like you know nothing about the justice system. The jury only makes findings of innocence or guilt. The judge does the condemnation by issuing the sentence.