Delta_V

joined 8 months ago
[–] [email protected] 1 points 2 weeks ago* (last edited 2 weeks ago) (3 children)

I imagine there would be no contact with the engine wall, just a narrow gap with an active system to adjust the size of the gap, similar to some jet turbines. The video goes into it a little bit at this time:

https://youtu.be/UPFFXBAe5mc?t=952

And someone in the comments who has experience with building this kind of engine talks a little about how its difficult but not impossible to lubricate the seal with a higher viscosity fluid that will want to build up and prevent a vane from fully extending at high RPM. A different comment points out that piston rings experience similar problems with carbon and grit.

[–] [email protected] 3 points 2 weeks ago

you can see the loud

[–] [email protected] 8 points 2 weeks ago (1 children)

lol, thank you

[–] [email protected] 1 points 2 weeks ago

Fractional Reserve Banking really do be that way. And it could be OK with stronger protections against bankers being able to ~~bribe~~ lobby politicians with funnymoney, or pay themselves exorbitant compensations. The supply of currency has to grow with the economy's growing productive capacity, and its better if government spending isn't the only way new currency comes to exist.

[–] [email protected] -4 points 2 weeks ago

As the operator of the other circus once said, "all publicity is good publicity," and "there's a sucker born every minute."

And as the other clown, Dr. Strangelove, once said, "the whole point of a Doomsday Machine is lost, if you keep it a secret!"

The idea of a Federal cemetery being "sacred" and the strangers buried there being "honored" is so far removed from the every day fight for survival of the average, brutally exploited wageslave American, the notion that starting a fight there could budge the needle on an election lacks credibility. However, injecting the knowledge into the global zeitgeist that there's a cemetery in America where rows of uniform gravestones extend as far as the eye can see, marking the depths of USA's brutality and Will to Power - that sends a message.

[–] [email protected] 3 points 2 weeks ago

if its going to be Republicans either way, why even show up to vote?

[–] [email protected] 9 points 2 weeks ago

so vanishing they've become completely invisible

[–] [email protected] 52 points 2 weeks ago* (last edited 2 weeks ago) (4 children)

“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

[–] [email protected] 10 points 2 weeks ago (1 children)

Seems like an interesting option for naturally aspirated race cars. They let you hit high RPM without worrying about valve float and without using overly powerful and lossy springs.

The difficulty of keeping them sealed suggests they're less than optimal for high boost turbo applications, or high compression, fuel efficient commuter engines. Narrow tolerances may also increase manufacturing costs and decrease longevity, which is less of a problem for a race engine compared to something designed for mass production.

[–] [email protected] 1 points 2 weeks ago

Some people find hydrostatic equilibrium aesthetically pleasing.

[–] [email protected] 6 points 2 weeks ago

Not D4 specifically, but yeah. I got temp banned from Reddit for reporting a ToS violation, and decided to never go back.

[–] [email protected] 12 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

https://en.wikipedia.org/wiki/Refraction#Atmospheric

Hot air is less dense than cold air, and the speed of light through a fluid will change with the fluid's density. Heat shimmers are a swirling mass of air at different temperatures.

https://en.wikipedia.org/wiki/Convection#Natural_convection

Light that would have hit the shadowed region instead got sent in a different direction.

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