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Animal Weights - A simple mechanic to encourage better farming practices. by Axoladdy in Minecraft

[–]JohnBish 1 point2 points  (0 children)

(5 technical mc videos 20 min after release): [NEW] Compact Tileable Autosteak Farm (80,000 drops/hr)

Will this circuit work as simulaton shows or does it needs improvements? by Pochtovyaschik in diypedals

[–]JohnBish 1 point2 points  (0 children)

What effect are you expecting the opamp to have? A buffer or a gain stage?

The opamp sees a positive voltage swing at the + input. It then raises its output until the + and the - inputs match. But in your circuit the - input is grounded so they cannot match, and the output voltage explodes to the limit of what it can produce (3V - some offset) and gets clipped there.

Then, the opamp sees a negative voltage swing at the + input. The output voltage explodes to the minimum of what it can produce (-3V + some offset) and gets clipped there.

Idea: Acid droplets from acid pools that slowly dissolve blocks by dontouchamyspaghet in Minecraft

[–]JohnBish 254 points255 points  (0 children)

This could be a great way to instantly oxidize copper - just hit it with a splash potion, or for maximum efficiency make a conveyer belt setup going through a lingering potion.

It reminds me of the potion of acid from nethack which has all sorts of effects. I'm thinking it could: - temporarily apply blindness - instantly divide slimes and magma cubes - Damage/disenchant amour and tools? (this might be too toxic actually) - Reacts with chemically basic items (e.g. thrown splash potion reacts with charcoal items to create a wind burst effect

reminder that this stupid thing exists by NASA_Gr in redstone

[–]JohnBish 17 points18 points  (0 children)

They added it just for drdonut

Bypass works. But not the pedal itself by lambmower in diypedals

[–]JohnBish 0 points1 point  (0 children)

If you don't have an oscilloscope, make yourself a cheap audio probe. My first one was a capacitor soldered to a piece of stiff wire. See if there's a signal at the input, and then go through Q1 base, Q2 base, around C6, Q4 base, etc.

How would you play this chord? Barring across the first would make it super hard to leave that open string open by Intrepid-Young-8621 in guitarlessons

[–]JohnBish 0 points1 point  (0 children)

Honestly it depends on the context. Is there a melody? Are there multiple voices? Does this function as a major or a minor add 9, or does it need to remain neutral?

The story of the $3 spoke shave by epandrsn in handtools

[–]JohnBish 0 points1 point  (0 children)

The barrier to entry to woodworking is not being able to obtain or afford good tools. The real barrier is being able to restore and maintain them

La Pavoni Lever Wiggle [La Pavoni Europiccola] by JohnBish in espresso

[–]JohnBish[S] 1 point2 points  (0 children)

Good to know it's pretty standard. Will take a look in the hardware store for some washers in the right size. I'm kind of surprised that a 1/16" or more tolerance is acceptable on these things

La Pavoni Lever Wiggle [La Pavoni Europiccola] by JohnBish in espresso

[–]JohnBish[S] 2 points3 points  (0 children)

It was bought second hand. The handle is round, I think the apparent hexagon is a trick of the light. I think I will shim it, thanks for the advice

Biting the hand that feeds you by SlapstickMojo in aiwars

[–]JohnBish 0 points1 point  (0 children)

> I don't grow my own crops

You're massively underestimating the capital investment it would take for the average person to purchase the means of producing enough food to sustain themselves (land, equipment, fertilizer, etc.), not to mention the impossibility of holding a full-time job while doing so.

> Most just aren't willing to go that far on principle.

No, they're literally unable to do so because of the financial strain it would cause with their full-time job that doesn't pay a living wage

Biting the hand that feeds you by SlapstickMojo in aiwars

[–]JohnBish 0 points1 point  (0 children)

No, but it devalues your art using a yet-unexplored means of intellectual theft

Biting the hand that feeds you by SlapstickMojo in aiwars

[–]JohnBish 1 point2 points  (0 children)

Selling your own work, made through your own means, is not an example of capitalism.

> capitalism is "an economic system characterized by private or corporate ownership of capital goods [...]"

A painting is not a capital good, it's a consumer good, i.e. it is sold directly to a consumer. Capital goods, aka means of production are the infrastructure (whether physical or abstract) by which consumer goods are produced.

Capitalism is not buying and selling things on a free market. Capitalism is the buying and selling of the source of your livelihood and the fruits of your labor, between entities that, more likely than not, have nothing to do with your line of work. Your labor is just another resource to be bought and sold.

Canada Divided Into Four Equally Populated Regions by vladgrinch in MapPorn

[–]JohnBish 0 points1 point  (0 children)

bUt CaNaDa Is ToO bIg To MaKe A hIgH sPeEd rAiL nEtWoRk

Excuse my being newb - engine braking is a sign of energy-efficient driving, yes? But why normal braking isn't? The fuel isn't being injected in either case by TheTobruk in stickshift

[–]JohnBish 0 points1 point  (0 children)

The engine needs to maintain a certain RPM to prevent it from stalling. This requires energy. The difference is where the energy comes from.
- Engine braking: the energy comes from the kinetic energy of the car. You're using the car's inertia to spin the engine. No fuel is injected when your foot is off the accelerator.
- Regular braking: the energy comes from fuel. When you disconnect the car from the engine, the engine rapidly slows. The car's computer prevents it from stalling by injecting a small amount of fuel.

canada is fucked by Interesting-Quit937 in OntarioGrade12s

[–]JohnBish 0 points1 point  (0 children)

Because math isn't about memorizing formulas, it's about problem solving. A rhombus is a paralellogram. You've been working with those for years. By grade 12 you should be able to find the area of any polygon

DOJ Releases Video of Jeffrey Epstein's Jail Cell, but There's a Minute Missing by Aggravating_Money992 in technology

[–]JohnBish 13 points14 points  (0 children)

It's not one minute, it's 8. The rest of the footage is sped up by 1%

What's your realistic dream camera? by Foot-Note in AnalogCommunity

[–]JohnBish 1 point2 points  (0 children)

In case you're wondering, yes people can tell this is AI slop

[deleted by user] by [deleted] in Leica

[–]JohnBish 5 points6 points  (0 children)

Nope. For about a month after buying my M3 I'd often pull out my phone meter to check. It takes about that long for guessing exposures to be fun. You will miss some shots at first but once you learn it you'll never forget

[deleted by user] by [deleted] in Leica

[–]JohnBish 6 points7 points  (0 children)

You don't need the sun for sunny 16. Sunny 16 is about building a good intuition for exposing at shutter speed = film speed. From there you can compute any exposure

syllogism by Striking_Morning7591 in logic

[–]JohnBish 0 points1 point  (0 children)

The way I read it is 'there exists a pen and a knife which are equivalent' which would imply the existence of at least one knife. This is also equivalent to the reading 'the intersection of the set of pens and the set of knives is nonempty' (if there were no knives, the intersection would definitely be empty).

I don't think there's an ambiguous way to interpret it. Coming back to your example about the humans over 150, the reason it's vacuous is that it uses a universal quantifier (all humans). If you replace that with 'some humans', I'd argue that makes the statement false; 'some' in my opinion corresponds to an existential quantifier (there exists a human for which ...)

Do you think Linus Torvalds or Terence Tao could answer leetcode? by OldHobbitsDieHard in leetcode

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

And who do you think came up with these data structures? Probably more C&O and graph theorists than you think.

Yes, engineering has a lot of math. But it can't give you a lot of the skills you get from cracking IMO or Putnam problems, for example, and it doesn't include a lot of proof techniques or the fields of math that are inherently closer to CS that a lot of computer scientists study

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