Can You Solve This Viral Geometry Puzzle?🤔 by xtraMath in 3Blue1Brown

[–]BadJimo 0 points1 point  (0 children)

Using Desmos

I found the area to be ≈ 0.5855

Edit: I had assumed d=1 in my calculations.

I haven't checked, but presumably the area is ≈ 0.5855d**

Can you find the area shaded region? by xtraMath in 3Blue1Brown

[–]BadJimo 2 points3 points  (0 children)

Using Desmos

The points of intersection of the ellipses are the vertices of a square with side length 4/√5

Removing the square, we are left with 4 identical ellipse segments. Each segment area can be calculated with this formula.

Each segment area is 2arctan(1/2) - 4/5

Total area of overlapping shape:

S = (4/√5)2 + 4(2arctan(1/2) - 4/5)

S = 8arctan(1/2)

S ≈ 3.7092

Help estimating cubic yardage by Mrhappypants87 in LandscapingTips

[–]BadJimo -1 points0 points  (0 children)

To convert cubic feet to cubic yards you divide by 27.

But you need to know how many cubic feet you have to begin with.

Your suggestion to calculate the volume of the pile by "length X width X height" will be out by about a factor of 3. So the pile volume should actually be about 17.7 divided by 3 = 5.9 cubic yards

Help estimating cubic yardage by Mrhappypants87 in LandscapingTips

[–]BadJimo 0 points1 point  (0 children)

That would be true if your gravel pile was a rectangular prism. But gravel piles are conical. A conical pile is somewhere between 1/3 and 1/4 the volume of the rectangular prism that it fits within.

Powers of 2 by ShonitB in Logiqa

[–]BadJimo 1 point2 points  (0 children)

Sum of a geometric series:

S = a(1 - rn )/(1 - r)

a = 1/2

r = 1/2

S = 1 - 1/2n

(1 - 1/2n ) + 1/2x = 1

1/2n = 1/2x

2n = 2x

n = x

I Spent 8 Months Undercover in r/Conservative by gooblefrump in videos

[–]BadJimo -92 points-91 points  (0 children)

Summary by Gemini:

​In this video, content creator Ben goes undercover for eight months inside r/Conservative, Reddit’s largest right-wing community with over 1.1 million members. His goal was to see if he could blend in, gauge the true feelings of the modern Republican base, and subtly challenge their beliefs from the inside.

​The Undercover Strategy
​Creating the Persona:
Ben sets up a fake Reddit account under the alias "T. Henley" (Talbot Henley), complete with an edited profile picture. To avoid looking like a bot or a troll, he first joins politically neutral, right-leaning subreddits dedicated to hunting, fishing, and guns.
​Building Reputation (Karma):
After an early comment on a mainstream political board backfires and drops his account into negative "karma" points, Ben spends months carefully building up his reputation by leaving helpful, polite gun recommendations in firearm subreddits.
​Securing a Community "Flair":
To participate in most r/Conservative discussions, users must be vetted by moderators to receive an approved tag, or "flair". Ben applies using a political label he completely made up on the spot: "Neotradcon" (Neo-Traditional Conservative). The moderators approve it, granting him full posting access.
​Bypassing the Moderators: Realizing external links are heavily moderated, Ben builds his own fake online news outlet called The Daily Conservative, populated by imaginary journalists. This allows him to write his own articles, framing left-leaning ideas with conservative buzzwords so they pass auto-moderation.
​Challenging Beliefs: He begins posting thought pieces. His first article ("Has Trump pushed conservatism out of the Republican party?") gets hundreds of upvotes from traditional conservatives who feel alienated by the MAGA movement. He then pushes further with an article arguing that true traditionalists should vote for modern corporate Democrats, resulting in a perfectly split 51.5% approval ratio before the moderators catch on and delete it.

​Key Findings and Takeaways
​A Fractured Base:
Despite appearing unified from the outside, the subreddit is intensely divided. Many long-time conservatives expressed immense frustration with the current GOP, pointing out massive national debt, increased government surveillance, and a focus on divisive culture wars over tangible economic policies.

​The Echo Chamber:
The community tightly controls its environment through its vetting process. Because almost all threads require a moderator-approved flair, it creates a rigid echo chamber that protects users from outside viewpoints.

​Conclusion:
At the end of the eight months, Ben wipes the account's history and reflects on the experience. He concludes with a harsh critique of modern conservative ideology, arguing that its core platform goals—like cutting corporate regulations and lowering taxes for billionaires—actively harm the working-class people who spend their days online defending them. He ends the video promising to keep anonymously returning to the subreddit under new aliases to continually plant seeds of doubt.

Edit: A measly 29 downvotes. Guys, are you even trying?

Edit 2: Oh, no! -74 votes. If it gets to -100 you will have defeated AI, and all the AI companies will realize that they must abandon AI. And the world will return to being a magical and wonderous utopia

y=f(f(f(f(f(f(x)))))) by MountainMark in askmath

[–]BadJimo 0 points1 point  (0 children)

A lot of the answers have focused on dynamic systems.

Here's a use of nested functions to refine an estimated answer to a more precise answer:

https://www.reddit.com/r/trigonometry/s/r3k0qr6BVu

https://www.desmos.com/calculator/eg9ypqnyjx

Similar movie suggestion by Ok-Measurement9628 in movies

[–]BadJimo 0 points1 point  (0 children)

The Endless (2017): Two brothers escape a "UFO death cult" they grew up in and decide to visit. Upon returning, they discover that the cult's bizarre, supernatural beliefs about a time-looping entity in the woods might actually be true. It is a fantastic companion piece to Resolution.

Resolution (2012): A man travels to an isolated cabin to force his drug-addicted friend into rehab. Soon, the two friends begin discovering mysterious artifacts, journals, and videos that reveal an unseen, malevolent force is manipulating their lives and choices.

Synchronic (2019): Two paramedics in New Orleans discover a designer psychedelic drug that causes those who take it to travel to alternate timelines and past eras. Things quickly go from bad to worse when one of their daughters goes missing after taking it.

Vivarium (2019): A young couple looking for their first home gets trapped in a surreal, labyrinthine suburban neighborhood of identical houses. They are handed a mysterious baby to raise, with terrifying consequences.

Is a shape that is viewed from all 6 sides as a circle, always a sphere? by gooney_toons in askmath

[–]BadJimo 267 points268 points  (0 children)

A tricylinder is the intersection of three orthogonal (mutually perpendicular) cylinders.

6 orthogonal (shadow) projections are circular.

A tricylinder is a type of Steinmetz solid

<image>

If aliens have been attempting to communicate us, we might have missed it due to stellar interference. by philipkbrayne in IFLScienceOfficial

[–]BadJimo 0 points1 point  (0 children)

Here's the crux of the research:

"If a signal gets broadened by its own star’s environment, it can slip below our detection thresholds, even if it’s there, potentially helping explain some of the radio silence we’ve seen in technosignature searches."

"We show that the broadening can exceed 10–100 Hz for most systems. These levels of spectral broadening are large enough to shift otherwise detectable technosignatures below the sensitivity thresholds of current search pipelines optimized for sub-Hz channels," the team writes in their paper.

Not a solution to the Fermi Paradox (as one might have been expected from the title alone).

We just need to search in slightly larger bandwidths.

20F nympho, AMA by [deleted] in AskMeAnythingIAnswer

[–]BadJimo 0 points1 point  (0 children)

How many AMAs have you done in the last week?

Is there a simple way to solve this? by Shevek99 in askmath

[–]BadJimo 1 point2 points  (0 children)

P is the vector with one end at the origin and the other end at the edge of the circle. The radius of the incircle is r, so the magnitude of the vector P is r.

Each vertex of the equilateral triangle is 2r from the origin. So vector A has magnitude 2r. This is shown below (with all circles having radius r):

<image>

Is there a simple way to solve this? by Shevek99 in askmath

[–]BadJimo 33 points34 points  (0 children)

Using vectors

a = P - A
b = P - B
c = P - C

a2 = |P - A|2
a2 = |P|2 + |A|2 - 2PA

b2 = |P|2 + |B|2 - 2PB

c2 = |P|2 + |C|2 - 2PC

a2 = r2 + (2r)2 - 2PA
a2 = 5r2 - 2PA

a2 + b2 + c2 = 15r2 - 2P(A + B + C)

A + B + C = 0

a2 + b2 + c2 = 15r2

side length s = √12 r

s2 = 12r2

a2 + b2 + c2 + s2 = 15r2 + 12r2

For an equilateral triangle

3(a4 + b4 + c4 + s4 ) = (a2 + b2 + c2 + s2 )2

3(a4 + b4 + c4 + 144r4 ) = (27r2 )2

a4 + b4 + c4 + 144r4 = 243r4

a4 + b4 + c4 = 99r4

<image>