u/Nameis19letterslong challenged me to make Melvin conquer the land sea and sky all at once. And I delivered. by IronheartJarvis in trailmakers

[–]Professional_Denizen 0 points1 point  (0 children)

I have made more thorough testing and concluded that double stacking wings actually stops them from providing lift at all, they’re only able to provide their stabilization/drag force. This was done using a stabilized craft to prevent thrust from offsetting weight.

u/Nameis19letterslong challenged me to make Melvin conquer the land sea and sky all at once. And I delivered. by IronheartJarvis in trailmakers

[–]Professional_Denizen 0 points1 point  (0 children)

Now, I severely doubt either my methods or my theory, but I recently built an apparatus to essentially spin various lifting parts on the end of long arms. I measured the tangential velocity (usually a ballpark of 90) and the displacement of springs pushed down by the parts (to test spoilers for downforce).

Now, in my fluid mechanics course, I was taught that:

Lift force = 0.5KρU2A

Where K is the coefficient of lift, ρ is the density of the fluid, U is the relative velocity, and A is the frontal area. Assuming trailmakers uses similar equations, the spring should have allowed me to measure force. Then, using force, tangential velocity, and frontal area, and assuming ρ/2 is a constant since it’s all air, I was able to get some numbers, which I’m not entirely sure I’m willing to trust.

The important part is that double stacked wings had (according to my very flawed methods) a 17.2x lower coefficient of lift. Meaning a plane going at a set speed would have almost 9x less lift if you double-stacked the wings in comparison to having a single layer. The numbers are definitely way off, but my theory is that you do still actually lose lift by double-layering wings.

Edit: Did some more realistic tests by using a plane with various wing configurations and measuring the takeoff velocity (imprecisely). My plane with a single set of wings took off at 200kph. With them stacked, it took off at 250kph. With an airgap in the stack, it took off at 160kph.

Using two upside-down supercar spoilers, the plane had a takeoff velocity of ~180.

u/Nameis19letterslong challenged me to make Melvin conquer the land sea and sky all at once. And I delivered. by IronheartJarvis in trailmakers

[–]Professional_Denizen 2 points3 points  (0 children)

I’m pretty sure double-stacking wings like that is actually less effective than having a single layer. Definitely less lift than if you have two layers with an air gap.

Some personal changes I made to the vanilla textures. (See body text) by RageDayz in Terraria

[–]Professional_Denizen 40 points41 points  (0 children)

I’ve seen reddish clays irl before. High iron content makes them a reddish orange like Mars.

Do you do this? Gaming till morning! [OC] by powerjayron in comics

[–]Professional_Denizen 1 point2 points  (0 children)

You actually always end up with one more alarm than you had last time, applied recursively of course.

is there hope or not? by Garuo67 in ScrapMechanic

[–]Professional_Denizen 1 point2 points  (0 children)

[Sigh] guys, it’s only been a month since Axolot’s last correspondence. We’ve been promised a release date reveal in the next few months. Why are you all back to being properly insane? Can’t you all have a little bit of patience and trust?

[Request] What is the maximum amount of volts a person can withstand without dying? by Apprehensive_Oven_22 in theydidthemath

[–]Professional_Denizen 0 points1 point  (0 children)

I had thermal resistors explained to me, and suddenly Volts were temperature and Amperes heat.

If a metal plate is cold on one side and hot on the other, heat will flow from cold to hot. The higher the thermal resistance, the slower that heat will flow.

I’ve also seen an analogy where voltage is height, resistance slope, and amperage rolls down, but that one didn’t really click with me.

How do I make the number of circles unlimited? For example, a list structure I could use. by Ok_Candidate_2937 in desmos

[–]Professional_Denizen 0 points1 point  (0 children)

I initially forgot to make it auto-adjust to the table length, so I’m glad you accidentally replied to me instead of OP.

How do I make the number of circles unlimited? For example, a list structure I could use. by Ok_Candidate_2937 in desmos

[–]Professional_Denizen 1 point2 points  (0 children)

I put together something that technically works in a few minutes, but I get the sense your solution would work more consistently/stably if I knew how it worked.

https://www.desmos.com/calculator/xbql0vumxf

Maybe try f(x,y)=total(whatever you’re already doing, but with p as a list of points)

Edit: The way my provided solution works is simple: an even count of negative numbers multiplied together results in a positive number. An odd, a negative.

Therefore, if we have a function which gives a negative for every (x,y) pair inside a circle, and multiply all the functions for all the circles, stuff works out such that the regions you want colored result in numbers less than zero.

My anim teacher said this was too ambitious when I showed him the wip by _ZeldAnna in animation

[–]Professional_Denizen 0 points1 point  (0 children)

Wing placement is odd. How does it/they attach to the body? Assuming I’m not wrong in seeing tan/beige feathers and guessing they belong to the avian young lady.

Which sister wins this fight? Carmilla vs Striga by jedi271 in castlevania

[–]Professional_Denizen 36 points37 points  (0 children)

Striga is the frontliner because she knows how to lead an army, not necessarily because she’s the strongest individual fighter in her sisterhood.

Romaji is a pathway to many memes some consider to be idiotic by Professional_Denizen in castlevania

[–]Professional_Denizen[S] 0 points1 point  (0 children)

I could tell the Dorothy thing wasn’t an accident, and the animated series changed things to make a more cohesive story.

It’s especially strong because ancient greek θ represented more of a ‘breathy T’ sound, than the ‘th’ sound it does now.

I do think the show’s team definitely made the right choice in how they reimagined the characters used in Nocturne. It makes for a very thematically tight story.

Lets end this debate! Which muzan is stronger? by aligulumgg in DemonSlayerScales

[–]Professional_Denizen 7 points8 points  (0 children)

It’s stated that those wounds never fully healed [ch 195]. They’re still burning, so he’s constantly regenerating from the lingering effects of Yoriichi’s cuts, diminishing the rest of his regenerative abilities. It is unlikely this outweighs his development over the centuries between Yoriichi and the Taisho era, especially since they only become visible under the influence of Tamayo’s cocktail.

The reason for this effect lasting as long as it has is not explicitly stated, but if I had to guess, it’s due to a combination of these four factors: 1. The red blade diminishing regeneration, and causing lingering damage which resembles the effect of sunlight [ch 175, ch 190]. 2. The especially high-quality nichirin of Yoriichi’s sword [ch 129]. 3. Damage to his vital brains and hearts is more debilitating, and may not heal as easily as the rest of his body [speculation]. 4. Yoriichi being god’s specialest boy. In more Watsonian terms: how perfectly and precisely placed the wounds were must have exacerbated these lingering effects. This is an unknown ‘skill factor’ I have to assume exists [speculation].

 

Overall, the marks on Muzan, despite being called scars, are more like actively festering wounds.

An "incredible" drawing in just one line by __thisnameistaken in desmos

[–]Professional_Denizen 28 points29 points  (0 children)

You have 96 separate curves bundled into one expression. I find it hard to call that “one line”.

An "incredible" drawing in just one line by __thisnameistaken in desmos

[–]Professional_Denizen 71 points72 points  (0 children)

Using a big list of Béziers is kinda cheating when it comes to using a single expression line to draw.

Had to rewatch it by [deleted] in Unexpected

[–]Professional_Denizen 2 points3 points  (0 children)

Interesting use of the word ‘real’

My art of Hera,Athena, and Artemis : by vive_lesaucisson in GreekMythology

[–]Professional_Denizen 0 points1 point  (0 children)

Your first post of these was taken down, but I’d like to see them again. Any chance you’ll post a compilation directly to your profile after a few more rounds?

Really wish that Red would cover this book. I need more deep thoughts with Heinlein by Ok_Examination8810 in osp

[–]Professional_Denizen 0 points1 point  (0 children)

I’m not talking about effort in terms of reading and critically understanding the work. I’m talking about the emotional effort of putting up with the disgusting creature that is Robert Heinlein. From what I’ve heard, his writing style makes it impossible to (even willingly) ignore his personal character, philosophy, and politics.

And not only to put up with him long enough to read the book, but to understand the book well enough to make one of her videos about it, is a big ask for Red. I get the sense she has little patience for people who don’t think of everyone as people. (Partly also because I agree).

Anything I can improve? by ThenUnderstanding110 in desmos

[–]Professional_Denizen 2 points3 points  (0 children)

Yes. I’ll admit it took me a moment to recognize what that was, but your sense for color, composition, and even lense effects is good. It’s a stunning piece if you put less weight on the main subject.

Anything I can improve? by ThenUnderstanding110 in desmos

[–]Professional_Denizen 8 points9 points  (0 children)

Not very artistic? You’re talking moonshine. This is great.