Search found 177 matches

by andykhang
Sat Feb 10, 2018 3:14 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

With that much power though, it's probably more cost-effective to just used the laser to blast the air let inside the jet pack and push up that way lol. Probably only need a fraction of the cost.
by andykhang
Fri Feb 09, 2018 2:07 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Laser jetpack

Supposed that I want to built such a thing. How many Terawatt of light do I need to propel myself with just light alone?
by andykhang
Sun Feb 04, 2018 12:34 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

TBH, what they built is more like giant ball of steel, with propulsion for feets, large cannon on the side and small one porcupining the whole thing, so at least it's more "realistic" than tank with bipedal.

Still ridiculous though.
by andykhang
Sun Feb 04, 2018 4:56 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

Well, the novel I'm talking about isn't exactly hard scifi, so you bet they have some mean to move and reinforce the thing (heck, they're used to build massive weapon, that's practically 2 times heavier than a CV, run at 500 km/h, is about 200m tall, run by a nuclear fusion reactor and could survive...
by andykhang
Sat Feb 03, 2018 3:20 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Literal Manhattan Project.

Suppose that I want to transform the Manhattan Island into a floating warship, capable of sailing around the world and be a literal world threat. What kind of requirement would it need, and how would you build this? (Asking, because one of the novel I read climax at the end with this thing, that als...
by andykhang
Thu Feb 01, 2018 9:09 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

...Really, why the hell that the faster you go, the more stable you're anyway?
by andykhang
Thu Feb 01, 2018 8:27 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

Not that much really, this thing's charge is still that of an Electron.
by andykhang
Thu Feb 01, 2018 5:40 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

Yeah...and the resulting heat also probably didn't do much of anything either. It's just too darn fast for both the Earth and the electron itself to feel anything, for completely different reason. (Not that sure if the electron truly doesn't feel anything, even from the heat that should undermine it...
by andykhang
Thu Feb 01, 2018 5:15 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

Mind you, it run into the nuclei of every single atom in the long, 6000km+ column of matter it have to travel through, and that atom would be completely toast if a single electron just smash through it core like bullet through sheet of paper anyway. The energy from just destroying the atom alone tho...
by andykhang
Thu Feb 01, 2018 4:25 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Single Electron Disaster

What happen if you concentrate all the energy the Sun have to accelerate a single electron? Would it become a black hole traveling at near-light speed? It’s a charge particle going at the speed of light and carrying a solar mass worth of kinetic energy. Basically, I would be surprise if that thing ...
by andykhang
Thu Feb 01, 2018 4:20 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

And the KE of a single solar mass, mind you. Any number that big would give out big number regardless of the property of that single electron. That thing will definitively gone pass the Pauli's Exclusion Principle and the Strong force and smash any proton and neutron in it way, no matter how you cut...
by andykhang
Thu Feb 01, 2018 4:02 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

Does it matter? It's not like it's going to decay any time soon.
by andykhang
Thu Feb 01, 2018 2:31 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

It’s a charge particle going at the speed of light and carrying a solar mass worth of kinetic energy. Basically, I would be surprise if that thing wouldn’t completely annihilate a row of atom of more than 6000 km high and into a column at least 1 m wide of instant particle destruction at the point o...
by andykhang
Wed Jan 31, 2018 10:56 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

I see someone comment it would, so I assume it. Either way, yeah, no way in hell it stop being a charge particle of death for any unlucky type .7 civilization. Top of my head, probably a planet cracker.
by andykhang
Wed Jan 31, 2018 7:02 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Re: Science-based what-if questions

Well, if that thing didn't already break the law of physics as we know it and the time and length dilation math still work, that thing would be a point energy (magnitude) smaller than a planck scale, and would outlive the sun before it even decay (check your math, you know it to be true).Also, nothi...
by andykhang
Tue Jan 30, 2018 1:52 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 530
Views: 49956

Single Electron Disaster

What happen if you concentrate all the energy the Sun have to accelerate a single electron? Would it become a black hole traveling at near-light speed?
by andykhang
Sun Jan 28, 2018 5:04 pm UTC
Forum: Mathematics
Topic: Elevator problem
Replies: 14
Views: 1087

Re: Elevator problem

From the descending order, meaning that, one you pick a number, the following one cannot be higher than the previous. And I was essentially asking the later question though?

Also, again, all combination from 21 to 0 is equally likely...somewhat.
by andykhang
Sun Jan 28, 2018 4:34 am UTC
Forum: Mathematics
Topic: Elevator problem
Replies: 14
Views: 1087

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: 1087

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: 648

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: 648

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: 490

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: 530
Views: 49956

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: 530
Views: 49956

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: 530
Views: 49956

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: 530
Views: 49956

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: 530
Views: 49956

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: 490

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: 530
Views: 49956

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: 490

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: 530
Views: 49956

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: 490

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: 490

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: 530
Views: 49956

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: 530
Views: 49956

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: 530
Views: 49956

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: 799

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: 799

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: 530
Views: 49956

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: 530
Views: 49956

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...

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