Kids these days, I was doing prompt injection attacks before they were cool. Why 20 years ago I was around my friends 3 year old who was being watched by a friend and I asked “What does daddy say in the car?”

The hilarious thing is artificial used to mean made by skilled labor, clever and ingenious, and implied it was good. This is likely because people in the 1800s were exposed to a bit too much natural and lost the taste for it.

If only we had some kind of automated or even manual system to scan and summarize it in a concise way.

I’m hoping this bubble is how I get 2TB of rdimm at 4800 or 5600 slightly used for my server for just $200 in 2028.

I was wondering how 11m in expenditure was able to be leveraged into 55m. Turns out it’s the combined $44m for failed delivery of the series and an additional $11m to meet those failed milestones. In reality he probably just pocketed the majority and it’s such a clusterfuck at this point it got written off completely.

^Energy->power

No one cares about FCC rules, upwards of 80% of the companies I’ve worked at, or who have done business with the companies I’ve worked at, who use radio gear break the rules. Not jamming WiFi to commit theft though, but things like attaching a high gain parabolic antenna to a modem who is only FCC licensed for a standard gain quarter wave radially symmetrical antenna which violates the energy density rules. Half of them didn’t even know they were breaking the law and I almost can’t blame them because virtually no one gets in trouble for it.

I saw that and would totally buy one. I agree, it is the best value for the money and acquiring American compliance would maybe make it 45k. Still an incredible deal. As far as small cars I’m OK with it, we need a bigger variety of types of transportation. When I was a kid I had to ditch the cops riding my, albeit crappy and underpowered, electric bike because even though it was technically legal cops didn’t know or care and I got them called on me. Now there is widespread knowledge, use, and regulation of electric scooters, bikes, and various conveyances. I would have totally loved that, small vehicles would be a great addition imo.

Yes, but exergy is integral to mechanical engineering specifically because it’s useful and informative to look at it this way. Your thermal cycle starts at ambient, has a high temperature reservoir to drive heat flow, does work converting the kinetic energy of the thermal system to useful work lowering the temperature, and returns to ambient at the starting position. Exergy, reduced to a grade school level of understanding, is specifically understood from ambient just as if your ground in an electrical system is actually some voltage. Heat flow never passes to absolute zero at any point, nor does current flow to ground, rather both remain pegged to the nonzero reference state.

False. This has been the correct take for process efficiency going back 150 years and has been coined exergy for 75ish years. It’s actually integral to understanding thermal energy systems confined to a non zero ground state just like we have on earth. Go back up and follow the exergy link to Wikipedia or if you must, use a llm and ask it to describe exergy to you but just know you may have to change the prompt a few times to be sure you’re not being fed false information as it looks like you don’t understand the answer.

This was my entire point but no one seems to be able to understand. If you are familiar with electrical systems think of the atmosphere as a 200,000 battery (or more accurately capacitance) with a low value of held charge and a greater than megaohm internal resistance. The “ground” which laypeople think of as zero volts is anything but, you can measure the voltage over distance with a sufficiently high impedance volt meter, there are many science tutorials demonstrating this and even YouTube videos, it’s well established fact the earth acts as a giant capacitor with a net charge of zero volts with respect to the universe.

False. The grade school level understanding math is identical, it’s called thermal resistance for a reason, if you understand the math for one system you understand the math for both. Even going to university level understanding the differential equations for mechanical systems have their mathematically equivalent electrical systems, in fact the family of differential equations applies across all kinds of physical systems, that’s why they are taught that way. It’s not only accurate, it’s elegant.

Carnot efficiency is indeed correct in absolute terms but it being the sole thing the vast majority understand creates a false impression of efficiency, it leads people to think thermal processes cannot be efficient in terms of what you pay for and what you get in return, just look at this thread. If you understand electrical systems it’s just as I’ve described above. Our ground isn’t actually true neutral with respect to the universe and it does not matter because it’s the relative efficiency of the system, just like it’s the most informative to understand our thermal ground state isn’t actually absolute zero. The math is exactly the same.

Carnot efficiency is based on absolute efficiency, not economical efficiency. Exergy is a mechanical engineering principle of relative efficiency or process efficiency with respect to ambient temperature though I understand it is a bit arcane if you don’t have a degree. I have a masters in mechanical engineering and have defended the exergy approach in a university at the graduate level to a company in front of three professors of mechanical engineering as well as using it at my job.

You cannot access the coldness of space, even on a clear night with a low resistance path or the surface temperature of the earth would be hundreds of degrees cooler and we would not have a climate as we know it. If you read the link I provided it explains why the power density of dark panels is “modest”

read above again, that was my point.

disambiguate because an internal combustion energy benefits from a greater amount of oxygen entering the engine due to the colder and denser air whereas a pure heat engine like a sterling engine does not benefit from greater fuel concentration. Considering what’s important here is the financial aspect, process efficiency is what is important and the total amount of power/energy and not Carnot or absolute efficiency. You don’t pay for the ambient thermal bath and it’s insulated from space by a high thermal resistance barrier, the atmosphere or we would all be frozen.

Yes, that’s the point. Instead of absolute neutrality (which does exist as the net charge on the universe is zero) it’s with respect to ground, you even have a metal rod inserted deep into the earth near your EVSE and it makes no sense to base your battery system efficiency with respect to the absolute, current can’t even flow because the atmosphere is highly insulating which is the point.

Thats conjecture, not cold hard measured fact like the surface of the earth being at hundreds of thousands of volts with respect to the universe or the cold of space being close to absolute zero. We don’t have easy free energy from the earth at 300k to space at 2k because even 10w/square meter is difficult to achieve from the ground. Conversely, when you are in a heat bath at 300k (or whatever ambient is on earth at your location) without the ability for heat to readily flow to space because of the optical/thermal properties of the atmosphere makes far more sense to view it from a relative process efficiency. At least try to read the Wikipedia entry on exergy before you call it crackpot when it’s been a well understood engineering principle for a century.

Carnot efficiency is a horrible way to view heat engines or any other thermodynamic process on earth. Yes, it’s absolutely correct for absolute efficiency but we exist in a bath of infinite (on human scales) thermal energy. Say the Carnot efficiency was maximized at 100C over room temperature of 300k, that would be 25% or 1-(300/400) because it penalizes you for the heat you got for free, the 300C. But look what happens if you take the efficiency to 100%, your exhaust or low temperature thermal reservoir would be at absolute zero and you could get free energy by using it as the cold side and atmosphere for the warm side which is nonsensical from an economic perspective. Another way to put it is why not infinite free energy from dark panels that use the ground facing side for the free infinite warm reservoir and the cold of space as the low side, these actually exist but the problem is the giant thermal resistor in the sky makes the energy density low. The far more sensible way to view things when living in an infinite thermal bath of energy separated from absolute zero by a high value resistance is exergy defined as the available energy to do useful work. So in the case above if you have 100C over room temp and take in free heat at 300 but expel to 300 you are 100% efficient. You used 100% of the heat energy you paid for. Carnot efficiency is like saying electric cars with 800V batteries can’t be more than 1% efficient best case which is dumb, no one thinks that way. The earth has about 400k volts stored between its upper atmosphere and the ground where we live, with a net charge against true neutral of only a few volts making the surface voltage 200,000 or so. Your absolute electric car efficiency therefore goes from 200,800 volts to 200,000 volts never using the remaining potential to true neutrality. So 1%. But that’s stupid because the current never flows to true neutral and can’t flow to true neutral because of the giant resistor in the sky, just like the thermal heat energy can’t flow to absolute zero because of the giant resistor in the sky. So saying a thermodynamic process is effectively described in absolute terms by Carnot is just as silly as saying electric cars are less than 1% efficient. It’s not useful for properly understanding the process.

We need a safety rewrite because they are the size of a side by side (atv), maybe they can fall under the same crash and use regulations. We don’t need every vehicle to have so many airbags, rear cameras, and the other safety features if they aren’t even going to be used at freeway speeds which would be a good trade off.

haha I see what you did there.

Sugar is integral to ultra processed foods. In America you basically can’t find any without it.

This is closer to cars having greater and greater horsepower to weight ratios in vehicles and now with electric cars you can buy entry level supercar performance for $70k. Then someone who doesn’t drive much goes to push on the accelerator naturally like they have with old models and instantly gets in a massive accident. Ultra processed foods are incredibly nutrient and calorie dense while being extremely cheap and available so if you eat them as you naturally do with regular foods and you’ll be an overweight blob with heart disease and diabetes. Humans only evolved because we process our food, first by cooking then by farming, we now basically need processed food to live. But these modern foods have gone too far, and are too easy to digest and absorb too quickly which is bad like with type 2 diabetes.