dragontamer

764 ms·

2911.
by dragontamer 4y ago
> a) It doesn't consider the transfer of energy from the stove to the pot. Burning the gas may realease 90% of the chemical energy, but how much of that makes it into the pot. Roughly the same as the inefficiencies of an electric st
2912.
by dragontamer 4y ago
When people are complaining about the declining purchasing power of USD, they are mostly talking about since November 2021, because that's when inflation started to really kick in. Its ironically, also when BTC really began to collapse
2913.
by dragontamer 4y ago
> The long-term solution to this is to replace gas ovens with electric ones. Not really. Burning natural gas turns 90%+ of its chemical energy into heat. Its incredibly efficient. In contrast: turning natural gas into electricity wastes
2914.
by dragontamer 4y ago
> Have you seen the dollar’s buying power recently? Yeah, its up like 100% over Bitcoin and like +30% over Euro, Yen, and GBP? In fact, holding Cash/USD has been basically one of the best performing things in my entire portfolio thi
2915.
by dragontamer 4y ago
> I’m sure George Floyd would have lived a little longer if he wasn’t Covid positive when he died. George Floyd tested positive for COVID19 before he died, but its not listed in his cause of death. Is that really the best counterexample
2916.
by dragontamer 4y ago
> It's practically impossible now to go back and figure out how many were _actually_ "killed by COVID" vs "died _with_ COVID". Have you ever read a death certificate? They don't even read "killed by COV
2917.
by dragontamer 4y ago
> It’s not my job to prove masks work, lockdowns work, or vaccines work. Can you stay on topic? This subthread is about a simple discussion. Do COVID19 tests detect the flu? The answer is no. Now if you wish to move your goalposts. Feel
2918.
by dragontamer 4y ago
> You could take that data and twist it to justify anything you wanted. No. My question is if your side has any data at all on the assertions you're making. Because in my experience, with regards to this debate, one side seems to ju
2919.
by dragontamer 4y ago
Which PCR test? Be specific. Because each test kit has documentation on how well it has cross-reactivity to other virus strains. I know its complicated with lots of competition here in the USA and lots of different manufacturers. So I need
2920.
by dragontamer 4y ago
H2 can be transported over natural gas pipelines. At least as high as 15% hydrogen / 85% Nat Gas. Maybe that's not enough for the long term, but that mix/ratio should be sufficient to bootstrap the fledgling H2 industry. If S
2921.
by dragontamer 4y ago
A pipeline and a steel drum, even built to withstand 700Bar of pressure, is cheaper than 1MW circuits that you propose lining thousands of miles of rail with. Transistors, transformers, and electric wires use an incredible amount of copper.
2922.
by dragontamer 4y ago
Okay. Take any COVID-19 test kit and see if someone sick with the flu tests positive with them. There is a simple thing called science. COVID-19 test kits are literally free. It wouldn't even be a hard test to do. EDIT: In fact, most C
2923.
by dragontamer 4y ago
You're welcome to post the other pandemics that occurred in 2020 through 2022. Flu was practically wiped out for example. COVID19 was more fit, and many people were taking precautions (ie: masks) that also hampered the spread of Flu. I
2924.
by dragontamer 4y ago
I mean, Toyota and Hyundai are making personal H2 vehicles. But they're expensive, very expensive, because those storage tanks are extremely sophisticated. Unless those storage tank costs come down by a LOT, I don't think H2 cars
2925.
by dragontamer 4y ago
1. Green H2 production needs to happen so that we get our fertilizers off of fossil fuels. The "greenification" of H2 / Ammonia / Fertilizer is one of the most important tasks of the near future, regardless of the energy
2926.
by dragontamer 4y ago
The idea is to create a green fuel of the future, powered by Solar Panels and Nuclear energy, and wind and hydro. ------- I do think that green-hydrocarbons have a potential future. Green diesel would be a biofuel. But Hydrogen can turn int
2927.
by dragontamer 4y ago
> and night-time batteries Why can't those night-time batteries be Hydrogen? And instead of running electrical wires, why don't we pump that Hydrogen into a pipeline that goes to the train station? That way, our energy transpor
2928.
by dragontamer 4y ago
Solar isn't even competing against Hydrogen. Hydrogen is a storage technology, not really an energy source. Hydrogen competes with Li-ion batteries. How many Li-ion batteries do you need to equal one 200-ton liquid H2 storage tank? At
2929.
by dragontamer 4y ago
Considering that night-time energy from nuclear plants, as well as peak 12pm noon energy from Solar Power plants, are going wasted right now, 18% round-trip efficiency is better than the 0%-efficient fully wasted energy that we're doin
2930.
by dragontamer 4y ago
> The locomotives are made intentionally much heavier than they could be made. The weight of batteries cannot be a problem and any energy used to accelerate a higher mass is recovered. Hydrogen storage technology can fit 30MW-hrs of elec
2931.
by dragontamer 4y ago
The issue with Hydrogen is its storage technology. It requires a high pressure (300-bar minimum, 700-bar ideal) environment... or cryogenics to store compact liquid hydrogen. Building a small, personal, car-tank that withstands 700-bar of p
2932.
by dragontamer 4y ago
> In that case what prevents us from building energy storage facilities that produce hydrogen at night and release the electricity back into the grid during the day? That's literally the plan? https://www.nrel.gov/ne
2933.
by dragontamer 4y ago
Hydrogen has the benefits of delayed time-of-use. For example, nuclear power continues to create energy at night, at 2am when there aren't many trains running. In contrast, when an electric train pulls from the grid, it needs electrici
2934.
by dragontamer 4y ago
What if the Hydrogen fuel was made by electricity, and the Hydrogen was used in a Fuel Cell to generate electricity? Then you have effectively a full electric train, powered by Hydrogen Fuel Cells. This is superior because Hydrogen has far
2935.
by dragontamer 4y ago
The entire space of "NP-complete techniques" is very interesting to me. At some point, you will come across an NP-complete problem, and your only choices are to either give up, or try your best to solve the problem anyway. Constra
2936.
by dragontamer 4y ago
> For instance, your Alldifferent(X11, X12, X13, X14, X15, X16, X17, X18, X19) constraint would be written as "x11 + x12 + x13 + x14 + x15 + x16 + x17 + x18 + x19 = 1". Same expressive power, on this problem. I'm more comf
2937.
by dragontamer 4y ago
> These computer platforms are drastically inefficient on a flop / $ basis. They exist to funnel money into the pockets of the companies who assemble them. They never ever achieve even a tiny fraction of their peak rated flops on an
2938.
by dragontamer 4y ago
Constraint Programming is NP-complete (non-polynomial bounds, likely exponential complexity). Simplex is provably within the polynomial bounds of complexity, ie: simplex is a so called "easy" problem in complexity theory. --------
2939.
by dragontamer 4y ago
Constraint Programming is "on the same complexity" as any of your NP-completeness set of problems. IE: Knapsack problem, Traveling Salesman, etc. etc. Today, it seems more popular to use "3-SAT Solvers". But constraint p
2940.
by dragontamer 4y ago
Seems to be a different issue than what's being discussed here? Housing prices didn't fall last quarter.

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