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Joined 1 year ago
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Cake day: January 2nd, 2024

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  • While blowing, some of the fan’s energy is spent on increasing the pressure inside your dishwasher, which increases the density of the air the fan blades move through, increasing drag on the fan blades causing them to move slower and create less airflow.

    While blowing, you’re also pushing moist air to the back of the dishwasher, and after that air reaches 100% relative humidity, it can’t hold any more water and will not help dry your plates. Some of it will eventually escape around the sides, but some of the airflow your fan creates just circulates humid air around the inside of the dishwasher.

    Turning your fan around solved both problems. It increased the volume of air flow, and decreased the relative humidity of the air flow.


  • there’s no feedback mechanism that will result in the promotion of instances with better moderation

    the federation system is inherently unstable - there’s a positive feedback loop where the instance with the most users attracts the most new users. new users have no to way to gauge the quality of moderation of an instance, and neither do disgruntled current users. additionally, members of smaller instances are less visible, which is an incentive to join a larger instance.

    “what instance?” is a rhetorical question, and the only possible answer is “never heard of it.” because there is no means by which a user could have become aware of other instances, regardless of the quality of those other instance’s moderation










  • “Arlington National Cemetery routinely hosts public wreath laying ceremonies at the Tomb of the Unknown Soldier for individuals and groups who submit requests in advance. ANC conducts nearly 3,000 such public ceremonies a year without incident. Participants in the August 26th ceremony and the subsequent Section 60 visit were made aware of federal laws, Army regulations, and DoD policies, which clearly prohibit political activities on cemetery grounds. An ANC employee who attempted to ensure adherence to these rules was abruptly pushed aside. Consistent with the decorum expected at ANC, this employee acted with professionalism and avoided further disruption. The incident was reported to the JBM-HH police department, but the employee subsequently decided not to press charges. Therefore, the Army considers this matter closed. This incident was unfortunate, and it is also unfortunate that the ANC employee and her professionalism has been unfairly attacked. ANC is a national shrine to the honored dead of the Armed Forces, and its dedicated staff will continue to ensure public ceremonies are conducted with the dignity and respect the nation’s fallen deserve.”

    https://www.npr.org/2024/08/29/nx-s1-5092087/trump-arlington-cemetery-altercation-video


  • Delta_V@lemmy.worldtoTechnology@lemmy.world*Permanently Deleted*
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    5 months ago

    The market didn’t need regulations to maintain its freeness back then because the vast majority of transactions were made with small businesses. The limited technological capabilities in transport and communication also decreased the need for government regulation by decreasing the ability of the largest concentrations of capital to succeed at implementing global anti-competitive strategies.

    To achieve the same degree of market freedom today, in the era of omni-national mega-corporations wielding monopoly influence, requires utilizing levers of power outside of the market those mega-corps dominate. The intervention of democratic governments to enforce anti-monopoly laws and prohibit other kinds of anti-competitive behavior is a necessary component of any plan to transform today’s marketplace into one that looks more similar to the market of Adam Smith’s day.


  • Delta_V@lemmy.worldtoTechnology@lemmy.world*Permanently Deleted*
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    5 months ago

    It is though - this is what capitalism invariably becomes. Musky Twitter is a symptom of late stage capitalism. This is why so many people say capitalism is bad and doesn’t work as advertised.

    The golden age of classical liberalism, when capitalism actually worked, the 1700-1800’s, more closely resembles what we would today call market socialism.

    Once the agglomerations of capital became large enough to impose irresistible anti-competitive force, the days of capitalism’s beneficial functionality ended. They say “the freer the market the freer the people”, but an unregulated market isn’t free - it invariably trends toward monopoly and irrationally assigned concentrations of wealth and power, eg Musk, Bezos, DuPont, Sackler, etc…

    Capitalism supports, rather than resists, the anti-competitive influence of capital. A truly free market requires the intervention of powers other than capital - eg, democratic governance imposing something akin to Market Socialism against the wishes of those anti-competitive agglomerations of capital.


  • Delta_V@lemmy.worldtoTechnology@lemmy.world*Permanently Deleted*
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    5 months ago

    fund it exclusively out of his own pocket

    That’s how newspapers got started - they were propaganda organs of the rich and existed exclusively to manipulate public opinion. Things really haven’t changed that much, but somewhere along the way people were tricked into paying for them.


  • When you heat hypergolic fuel up enough it will spontaneously ignite. It’s got its own oxidizer in it, essentially.

    Kinda. The RCS is fueled by two fluids that spontaneously combust when mixed: N2H4 and N2O4, aka hydrazine and nitrogen tetroxide (or dinitrogen tetraoxide).

    If the N2H4 gets hot enough, it will exothermically decompose into a large volume of hot gas. Its sometimes used as a monopropellant - squirt some of it onto a catalyst and direct the gas out a rocket nozzle, and you’ve got a simple, reliable thruster. Mixing it with N2O4 produces hotter gas, resulting in a thruster that gets about 35% higher fuel efficiency.

    Problems with the helium system could make hydrazine decomposition in the fuel lines more likely to happen. One of the ways the hydrazine is kept cool while its in the fuel lines is via high flow rate, but that requires the fuel tank to be pressurized by helium - clearing the fuel lines after thruster shutdown may also require helium. Low pressure could lead to lower flow rate and possibly cause cavitation (which can cause tiny spots of very high heat), which could in turn cause the hydrazine to decompose in the fuel lines/tank. At that point, mixing with N2O4 would be overkill - Starliner would already be destroyed before the oxygen started burning.