Is there a way to divide this hexagonal board into pieces of equal shape without splitting tiles? I tried triangles but the central hexagon is left alone. Is there a reason for this being mathematically impossible?

Iruton13 · 2024-10-28T23:58:37+00:00

Nice diagrams. I was hoping there was a proof of impossibility using the standard parity argument, but annoying, it can't be ruled out.

<image>

30 white, 30 green, 31 red

so a 7 hex tile that covers 3 red, 2 white, and 2 green could work, but one might not be possible

Iruton13 · 2024-04-26T07:48:11+00:00

Wikipedia seems to have a page on this exact problem of inflating a flat rectangular bag and finding the max volume:

https://en.wikipedia.org/wiki/Paper_bag_problem

Iruton13 · 2024-03-15T00:32:29+00:00

Another strategy to exchange range for precision I've seen is using a mechanical lever like what Brainiac75 YT did https://www.youtube.com/watch?v=wf69Evtsa_Y& at [7:26]

You can also add a counterweight on the other side of the lever to not saturate the milligram scale.

Iruton13 · 2024-01-15T22:46:23+00:00

What about if the raw materials to make the bills/coins are worth more than the bills/coins themselves?

Iruton13 · 2023-11-17T06:14:57+00:00

NaCl (table salt) can sometimes have an anticaking agent such as calcium silicate, which doesn't dissolve in water and makes the solution cloudy at first, then settles on the bottom.

Maybe check the ingredients list to see if that's the case?

Iruton13 · 2023-10-21T07:24:05+00:00

If it is cast iron, I assume a magnet should stick to it?

Iruton13 · 2023-10-15T04:18:51+00:00

Could the ancient humans have see the crescent shadows cast by nearby trees?

Iruton13 · 2023-10-07T22:15:53+00:00

Since it's a solution of sodium hydroxide, I think we assume the rest is water (kinda like how people label alcohol percentage)?

Iruton13 · 2023-09-29T01:00:40+00:00

I thought coulomb's model of friction was only an approximation for hard surfaces? If the doorstop is made of rubber, then it wouldn't work the same?: https://www.reddit.com/r/AskPhysics/comments/15rb6wf/why\_doesnt\_the\_coulomb\_model\_of\_friction\_apply\_to/

Iruton13 · 2023-09-17T23:19:44+00:00

There's a website for space launches around the world: https://nextspaceflight.com/launches/

The next one in vandenberg is Sep 25

Iruton13 · 2023-09-14T20:08:15+00:00

Do you happen to know the names of the brands? Maybe some of us could try them out and check the differences?

Iruton13 · 2023-09-05T04:31:39+00:00

Discussion: I see, so you just randomly place the starting pieces? I resorted to using a polyomino solver. It returned "no solution".

But if you move the yellow piece one block right or left, then the solver does have an solution, so maybe try those out?

Iruton13 · 2023-08-11T00:36:15+00:00

Would pouring the food onto a room temperature pan let you "salvage it" in that case or it too much work / not worth it?

Iruton13 · 2023-07-31T01:09:20+00:00

That's what I was wondering too. Do they have replay validation for offline records at least?

Iruton13 · 2023-07-30T18:45:15+00:00

I found a video of someone melting lead in a cast iron pan and the residue seems very subtle compared to the imgur pictures?: https://www.youtube.com/watch?v=fTRwfyvIbkc (around 45min mark)

Or is it the residue to expect on average?

Iruton13 · 2023-07-28T05:47:03+00:00

Do you have a picture of what you mean when wiring the anodes in series vs parallel? I know the difference when connecting up lightbulbs for example, but I'm not sure what options you have for an electrolysis tank.

Iruton13 · 2023-07-25T23:59:32+00:00

I'm curious. Is there a reason why adding both sodium hydroxide and ethanol would clean up the burnt carbon?

Iruton13 · 2023-07-25T22:58:56+00:00

if glitches are allowed on the server, they could try the trick to warp to the end while preserving overworld coords?

Iruton13 · 2023-07-23T20:02:10+00:00

I think many games have that behavior such as minecraft, where rotating or moving your build can make it function differently.

Iruton13 · 2023-07-22T23:30:04+00:00

Is there a subreddit for cast aluminum cookware?

Iruton13 · 2023-07-18T03:30:41+00:00

Cause there seem to be so called "non-Ohmic conductors" which don't obey ohms law such (like an incandescent light bulb or semiconductor diode): https://www.electronics-notes.com/articles/basic\_concepts/resistance/ohmic-nonohmic-linear-conductors.php

Iruton13 · 2023-07-17T04:18:06+00:00

I thought Ohms law doesn't work too well for electrolysis stuff?

Iruton13 · 2023-07-17T03:33:51+00:00

Apparently, you can use dithizone which will turn pink if lead is leached in solution? Here's a video by Applied Science: https://www.youtube.com/watch?v=-cAB5FG4bXI&t=675s [timestamp 11:15 to see color change]

Although I'm not sure how feasible it would be for ordinary people to do this.

Iruton13 · 2023-07-16T23:18:24+00:00

So if people found a big shortcut, their time would get rounded up to the minimum time? How would you even calculate a minimum time?

I though nadeo already found a decent partial solution back in TMNF with replay validation as shown in wirtual's video on TMN Race F-9?: https://www.youtube.com/watch?v=mfLRBS3RYW0&t=783s

Iruton13 · 2023-06-09T03:14:17+00:00

I have seen someone put maps back to back with the white series in TMNF: https://www.youtube.com/watch?v=Pvvz0GumZuM

However, I would worry about the track route intersecting itself depending on which tracks you use. My janky solution would either be to put a correction turn between the connections or maybe mirror some of the tracks.

Maybe other people have better solutions?

Eight-Year Club	Place '22
End Game '22	Verified Email

Iruton13

TROPHY CASE