Search found 200 matches

by andykhang
Sun Jan 28, 2018 4:34 am UTC
Forum: Mathematics
Topic: Elevator problem
Replies: 14
Views: 3972

Re: Elevator problem

What constraints? Is it "how likely that this specific combination of all possible five sequential stops between 23 and 1" (you're 'Merkin, so I assume that's your ground-level exit) or "…of all possible N-stop combinations…", likewise, from N 0 to 21? The first would be based u...
by andykhang
Sat Jan 27, 2018 2:27 pm UTC
Forum: Mathematics
Topic: Elevator problem
Replies: 14
Views: 3972

Elevator problem

Supposedly, there're 33 floor total in a building I live in,and I live in the 23 floor. I enter the elevator to go down into the 1st floor so that I could get out. As I go down, the elevator stop at floor 19, 14 ,9, 7 , 5 before I could go to the bottom. Statictiscally, how likely I am to encounter ...
by andykhang
Sat Jan 27, 2018 12:09 pm UTC
Forum: Science
Topic: 4-dimensional version of the 6 simple machine.
Replies: 8
Views: 2842

Re: 4-dimensional version of the 6 simple machine.

So, again, if you boil it down, you only need how many machine to have it all? (In term of movement of force, I mean)
by andykhang
Sat Jan 27, 2018 4:13 am UTC
Forum: Science
Topic: 4-dimensional version of the 6 simple machine.
Replies: 8
Views: 2842

4-dimensional version of the 6 simple machine.

Just read about it slightly make me wonder: How many simple machine is needed to do all thing in a 4 dimensional space, or alternatively, just how many way is there to applied force in 4 dimension? I know that it's 0 for 0th, 1 for 1th and 3 for 2th if I'm correct?
by andykhang
Mon Jan 22, 2018 1:27 pm UTC
Forum: Science
Topic: Round-barrel(-ish) Railgun
Replies: 13
Views: 2680

Re: Round-barrel(-ish) Railgun

Yeah, too bad...with all the craft relying on missile for their primary fire, all you need is a well placed kinetic kill weapon too fast and too heavy for the missle to react against. (Applied for warship only, I think)
by andykhang
Mon Jan 22, 2018 1:16 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

Yeah...so this design is kinda like the Yamato or the Bismacrk: A thing built mostly for propaganda, only for it to work too well and sunk too early to do any significant damage. Only that this thing is even less realistic lol (Seriously, it somehow is better as a kind of mobile marine artillery tha...
by andykhang
Sun Jan 21, 2018 2:33 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

So in other word, I need to ridiculously afix this thing in place, or let the cannon move freely to an extend to minimize the recoil...That would either further limit the way this thing would work, or we're forced to lower the power instead. ...Come to think of it, if you need an entire island to af...
by andykhang
Sun Jan 21, 2018 2:15 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

I said battleship,but this thing would be more likely to aim at either aircraft carrier or on-shore installations, or pretty much any static target. And the reason Sub is better because that thing is supposed to be fired from long away anyway, where it would be hidden from sight and be fire tilted w...
by andykhang
Sat Jan 20, 2018 5:24 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

Adding electronic to a railgun sound like a pretty bad idea for me though, unless you got perfect insulation. The weight of a bullet itself is also a problem, as 400 kg is probably a sizable chunk of the ammo capacity for regular destroyer, but it could make it up with it one-shot-kill potential. Ot...
by andykhang
Sat Jan 20, 2018 5:53 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

So what about other inclination? Said I want to build it as a submarine instead and point the head of it straight up and nearly out above the waterline, what would it be then?
by andykhang
Fri Jan 19, 2018 5:14 pm UTC
Forum: Science
Topic: Round-barrel(-ish) Railgun
Replies: 13
Views: 2680

Re: Round-barrel(-ish) Railgun

The electricity itself is also split between the rails though, so the only problem I see right now is how to time the discharge rather than make it faster than in the long version though.
by andykhang
Fri Jan 19, 2018 4:55 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

Yeah...and designing it so that the gun will aim straight up would definitively capsize the thing immediately after the first shot unless you planned to have atleast have at least half of the entire gun be submerge underwater (in this case you would actually be better build it as a submarine anyway)...
by andykhang
Fri Jan 19, 2018 4:41 pm UTC
Forum: Science
Topic: Round-barrel(-ish) Railgun
Replies: 13
Views: 2680

Re: Round-barrel(-ish) Railgun

You can't really be lighter with these kind of thing anyway, since a rail need a certain level of size and weight to withstand such force. You could be significantly shorter though, by splitting the load between multiple shorter rail (though I guess you still need some revolutionary engineering to d...
by andykhang
Fri Jan 19, 2018 4:16 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Lancer-class Railgun Destroyer (self-named)

So, with the railgun finally somewhat ready for practical used, and soon to be put on a battleship, soon enough there're going to be some crazy design surrounding this (prefertively the Japanese, but they put all their crazies in their culture nowaday), so I thought I would suggest one such design a...
by andykhang
Fri Jan 19, 2018 3:48 pm UTC
Forum: Science
Topic: Round-barrel(-ish) Railgun
Replies: 13
Views: 2680

Re: Round-barrel(-ish) Railgun

You could save alot of space by just splitiing the rail and place it in circular fashion though. IIRC, rail size doesn't matter much aside from durability
by andykhang
Fri Jan 19, 2018 1:08 pm UTC
Forum: Science
Topic: Round-barrel(-ish) Railgun
Replies: 13
Views: 2680

Round-barrel(-ish) Railgun

Just today I saw that video of the US Navy firing their railgun from a barrel at highspeed. I only seen it firing from 2 straight rail parralel to each other though, so how does firing from a round barrel work, and is there a calculation for it?
by andykhang
Fri Jan 05, 2018 1:56 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

Ohhh...then I guess I have to ask for something simpler then. Though tbh, I only need the bare requirement and all.
by andykhang
Fri Jan 05, 2018 10:23 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

Well obviously. I mean the central design. One of the advantagous of this kind of gun is that you could be really versatile about the material used as the bullet, so you could have the gun not having a magazine, instead sucking air from the surrounding, store it temporaly, and then suddenly compress...
by andykhang
Wed Jan 03, 2018 3:29 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Wave Motion Sniper Rifle

If you already watch Space Battleship Yamato 2199, or at least heard of this by name, you guy probably know what I was going for, but I'll explain it for those who don't: In the remake, the Wave Motion Gun fire by compressing thing into a micro black hole, then used the Hawking Radiation that's comi...
by andykhang
Thu Dec 21, 2017 3:16 pm UTC
Forum: Science
Topic: Network on a trusting planet
Replies: 5
Views: 2247

Re: Network on a trusting planet

Yeah...figured that security wouldn't be particularly useful if it take too much of space. Also thank
by andykhang
Thu Dec 21, 2017 2:14 pm UTC
Forum: Science
Topic: Network on a trusting planet
Replies: 5
Views: 2247

Network on a trusting planet

Supposedly, there's a planet, with the same amount of technology like our, thus the same network tech. But...because people on that planet trust each other, knowing that the other wouldn't even thinking of fooling the other (a dumbass planet, if you ask me), their network and internet doesn't have a...
by andykhang
Tue Dec 12, 2017 12:50 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

...Never said anything about the whole thing need to be eatable, so alright then. Next is what kind of flavor that could survive the radiation bombarment from space, or do we lay out an atmosphere as flavor dust?
by andykhang
Tue Dec 12, 2017 10:45 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

Hm..that could work. The speed of it spin is a problem though, as it will determine the type of binding agent that giant waterpipe of a cake is needed, and you can't have too tough of a binding agent (unless you want it to be scooped out of a power excavator or a drill and diluted it in special agen...
by andykhang
Tue Dec 12, 2017 10:38 am UTC
Forum: Science
Topic: Artificial Stupidity
Replies: 52
Views: 6514

Re: Artificial Stupidity

Then we must, once again, define what an AGI is. Taken from Wikipedia, an AGI is "the intelligence of a machine that could successfully perform any intellectual task that a human being can". Follow from that reasoning, there're 2 way to think about this. 1. That they could perform the task...
by andykhang
Mon Dec 11, 2017 6:23 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

You can't make it - there's not enough materials for it on Earth. Who said I would just take it on Earth alone? Let just supposed I got at least an Earth amount of ingredient and a way to process them all (Probably a giant mixer powered by black hole or something) @gmalivuk Or that the cake would b...
by andykhang
Mon Dec 11, 2017 6:13 pm UTC
Forum: Science
Topic: Artificial Stupidity
Replies: 52
Views: 6514

Re: Artificial Stupidity

All this talk about stupidity just make me reminded of a story idea I have a month ago: About robot and AGI, in there "teenager" year, having to learn in school design for them to grown into maturity. They all have their own stupidity, each way different from the other, and they have to le...
by andykhang
Mon Dec 11, 2017 5:43 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

The Big Gaia

Supposedly, I want to make a cake. A cake so big, it's literally the size of the Earth: The Big Gaia, if you will. Supposedly that it's at least safe for human comsumption, what should it look like, and how should I make it?
by andykhang
Sat Dec 09, 2017 5:54 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

Limiting it again huh...How about just a inertia converter, in which you convert simple kinetic energy into electricity, with no waste, and applied with anything?
by andykhang
Fri Dec 08, 2017 11:42 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

You better thank you're lucky star I didn't including work to change a regional fundamental law and straight up magic, my man :).
by andykhang
Fri Dec 08, 2017 11:28 am UTC
Forum: Science
Topic: A bag of french fries
Replies: 10
Views: 1927

Re: A bag of french fries

It could also be partly of human psycology, in which you would tend to group medium length one into either longer or shorter one if it's seems to "surrounded" the fries, changing your perspective
by andykhang
Fri Dec 08, 2017 11:25 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Re: Science-based what-if questions

You need to give it some restrictions. If your engine can take any energy and turn it into useful work, I would just gradually convert the entire mass of a hunk of material in my reactor into electricity, kinetic energy, or whatever. Spaceflight would be trivial, since you would have a reactionless...
by andykhang
Fri Dec 08, 2017 11:19 am UTC
Forum: Science
Topic: A bag of french fries
Replies: 10
Views: 1927

Re: A bag of french fries

Yeah, that's what I figured. I think that it's because longer stick simply take up more space, probabilistically and spacially, than short one (also these guy know to have more long than short in general). Also because you're tend to pick long stick over short one in a verticle rectangular bag , sin...
by andykhang
Fri Dec 08, 2017 9:50 am UTC
Forum: Science
Topic: A bag of french fries
Replies: 10
Views: 1927

A bag of french fries

Why, when you eat a typical bag of french fries (you know, McDonald, Lotteria, KFC stuff), eventually you'll see that only the shorts sticks is left at the bottom of the bag? You're eating it pretty casually, so the stick you pick out is completely random, so what give? The explaination I could thin...
by andykhang
Fri Dec 08, 2017 9:42 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 622
Views: 93079

Variable Engine

What would you do with a Variable Engine, A.K.A: An engine that could convert any type of energy into any type of work, regardless of absurdity, and vice-versa? (The engine and work is equivalent, btw, so you can't make it a Perpeptual Engine yet) Edit: Also, what do you think is the basic requireme...
by andykhang
Fri Dec 08, 2017 9:34 am UTC
Forum: Fictional Science
Topic: How do you define..."you"?: Question about Infinite Universe
Replies: 22
Views: 4317

Re: How do you define..."you"?: Question about Infinite Universe

@ucim Why?...Just curioucity, I guess? If I have to put a label, I guess I want to indirectly ask the "uniqueness" of certain thing. In what point does something similar deviated itself enough to count as different, assuming the scenario above, act as 2 environment with only one key differ...
by andykhang
Sat Nov 25, 2017 4:25 pm UTC
Forum: Fictional Science
Topic: How do you define..."you"?: Question about Infinite Universe
Replies: 22
Views: 4317

Re: How do you define..."you"?: Question about Infinite Universe

Uh...I'm not talking about that, either, but forgive me for ambiguous language. I just mean a realatively simple situation, in which you discover that you're in a multiverse, and each verse have a different kind of You in it.
by andykhang
Fri Nov 24, 2017 5:12 pm UTC
Forum: Fictional Science
Topic: How do you define..."you"?: Question about Infinite Universe
Replies: 22
Views: 4317

Re: How do you define..."you"?: Question about Infinite Universe

jaap wrote:
andykhang wrote:The alternate self idea? That's there is infinite version of you when you have infinite universe?

Are you talking about a multiverse (i.e. parallel universes) rather than a single infinitely large universe?

yeah that, though the question is already partly answered for me.
by andykhang
Fri Nov 24, 2017 9:37 am UTC
Forum: Fictional Science
Topic: How do you define..."you"?: Question about Infinite Universe
Replies: 22
Views: 4317

Re: How do you define..."you"?: Question about Infinite Universe

The alternate self idea? That's there is infinite version of you when you have infinite universe?
by andykhang
Thu Nov 23, 2017 7:21 am UTC
Forum: Fictional Science
Topic: How do you define..."you"?: Question about Infinite Universe
Replies: 22
Views: 4317

How do you define..."you"?: Question about Infinite Universe

Just watch something about infinite universe thing, and that make me question: Infinite universe mean infinite self, as it's known right?...But how could you even make a distinction that would make a certain person "you" in an alternate universe/timeline? For instance, let supposed you tre...
by andykhang
Sat Nov 11, 2017 7:52 am UTC
Forum: Science
Topic: Speed of gravity.
Replies: 36
Views: 7716

Re: Speed of gravity.

Now this made me question this: What happen if a gravitational wave is strong enough for the space to vibrate... about 10m or more? (Assuming only gravitational wave effect)

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