Post Your Favorite Sci-Fi Concept Art

Just what it sounds like.

Re: Post Your Favorite Sci-Fi Concept Art

Postby Silverware » Sun May 14, 2017 9:02 pm

0111narwhalz wrote:In that case, why bother with the "pseudo" qualifier at all?

Cause I didn't think it all the way down to the data. :V
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Cornflakes_91 » Sun May 14, 2017 9:39 pm

Silverware wrote:
0111narwhalz wrote:In that case, why bother with the "pseudo" qualifier at all?

Cause I didn't think :V


FTFY
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Re: Post Your Favorite Sci-Fi Concept Art

Postby JanB1 » Mon May 15, 2017 12:34 am

0111narwhalz wrote:I thought you made your signature with a BBCode text editor. :ghost:

Also, who uses those restrictive 2D editors, anyway? Blender all the way! :ghost:


Yeah...uhm...corrected it. :problem:


Cornflakes_91 wrote:
Silverware wrote:
0111narwhalz wrote:In that case, why bother with the "pseudo" qualifier at all?

Cause I didn't think :V


FTFY


Hey! No taking out of context here! :D
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Triggerhappy » Mon May 15, 2017 10:48 pm

Spoiler:      SHOW
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Station idea: The two rails slide against each other to quickly dodge small asteroids.
Last edited by Triggerhappy on Tue May 16, 2017 8:41 am, edited 1 time in total.
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Re: Post Your Favorite Sci-Fi Concept Art

Postby JanB1 » Tue May 16, 2017 12:37 am

Triggerhappy wrote:
Spoiler:      SHOW
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Random station idea: The two rails slide against each other to quickly dodge small asteroids.


"quickly dodge small asteroids."

Uhm...so, you mean the persons in this arm suddenly feel a massive acceleration in one direction, because the station has to move it's arms quickly? And what happens if you accelerate one arm really fast? Will the whole station get "pulled" towards the end of the arm that is coming nearer? Cuz of mass and stuff? Hmm... :think:

And you still didn't tell me HOW you did them in Inkscape. I always have to use a CAD program to make accurate lines and shapes and stuff... :D
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Dinosawer » Tue May 16, 2017 12:45 am

Unless your arms weigh about as much as the station, that doesn't actually work. The arms move but the station stays more or less put. (as your center of mass stays put)
And why would you need to dodge asteroid in an orbiting craft? The asteroids move in the same orbit, they're not gonna be moving at any large speed towards you.
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Cornflakes_91 » Tue May 16, 2017 5:47 am

In addition to lots of injured crewmen everytime the system has to act.
And broken solar and radiator panels.
And lots and lots of energy needed if you want to move "quickly".

Just put up a laser with a couple of megawatt pulsed power and have less problems.
Divert the rocks instead of avoiding them.
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Triggerhappy » Tue May 16, 2017 7:57 am

Well the arms are the station itself, those are cargo containers probably containing ore or something
The center peace has minimum mass
The station has no crew, this is theoretically a storage station
No solar or radiator panels, this is a very cold station, doesn't do much besides sit there and doge occational asteroids
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Cornflakes_91 » Tue May 16, 2017 8:16 am

Triggerhappy wrote:No solar or radiator panels, this is a very cold station, doesn't do much besides sit there and doge occational asteroids


Where do you get the power to "quickly" move the arms around? Magic?

Also: what do you think is easier to build:
A compact station that has to actively protect a small area (spherical station for example) and not move around in jerky motions and doesnt have to have bracings to hold up hundreds if not thousands of tons against a couple of g.

Or a station that has to jerk around many tons on short notice and has to supply the power and mechanics to do that and keep in one piece while doing so?

(Also mind the general engineering principle: use as few moving parts as possible, especially fast and heavy ones)
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Triggerhappy » Tue May 16, 2017 8:25 am

CONCEPT ART PEOPLE CONCEPT ART

Yeah I get all that.
Power could be regenerated slowly from small solar panels bolted onto the containers, after all the thing doesn't need to move too often.

That small compact station will not significantly reduced surface area. It will, however, require precious fuel to move out of the way.
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Dinosawer » Tue May 16, 2017 8:32 am

Triggerhappy wrote:That small compact station will not significantly reduced surface area.

[citation needed]
A cube has a way smaller surface per volume than an elongated bar.

Triggerhappy wrote: It will, however, require precious fuel to move out of the way.

But can move out of the way all the time, unlike your design which is screwed if the asteroid comes from the side instead of top or bottom. Or if the asteroid is too large.
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Cornflakes_91 » Tue May 16, 2017 8:34 am

For the volume it can hold a compact station outareas your sticks by orders of magniutde very fast.

And who said anything about moving?
Use a stupid pulsed laser to pulse a few hundred kilojoule into the asteroid thats about to hit you and divert it the half degree you need to miss.
faaaar cheaper than jerking your station around
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Triggerhappy » Tue May 16, 2017 8:38 am

Dinosawer wrote:
Triggerhappy wrote:That small compact station will not significantly reduced surface area.

[citation needed]
A cube has a way smaller surface per volume than an elongated bar.

Triggerhappy wrote: It will, however, require precious fuel to move out of the way.

But can move out of the way all the time, unlike your design which is screwed if the asteroid comes from the side instead of top or bottom. Or if the asteroid is too large.


Not significantly dino, not significantly. It will be smaller but not by much. I understand surface area.

Suddenly you need fuel tanks and larger engines that can handle moving the whole thing and then slowing it down in a short time. And you need to refuel it.


That gives me a great idea! Another arm in the third dimension!

PS: cornflakes a laser needs a reactor and radiators and targeting systems, and all that needs maintenance.
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Dinosawer » Tue May 16, 2017 8:44 am

Triggerhappy wrote:
Dinosawer wrote:
Triggerhappy wrote:That small compact station will not significantly reduced surface area.

[citation needed]
A cube has a way smaller surface per volume than an elongated bar.

Triggerhappy wrote: It will, however, require precious fuel to move out of the way.

But can move out of the way all the time, unlike your design which is screwed if the asteroid comes from the side instead of top or bottom. Or if the asteroid is too large.


Not significantly dino, not significantly. It will be smaller but not by much. I understand surface area.


Do you?

Say your bar is 10 x 1 x 1, having a volume of 10. You have two of them, making it 20.
The surface is ( 4 *(10) + 2*1)*2 = 84.

A cube of said volume has a side of 2.714...
Surface is 2.714^2 * 6 = 44.2.

That's nearly half. I call that significant.
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Re: Post Your Favorite Sci-Fi Concept Art

Postby Cornflakes_91 » Tue May 16, 2017 8:45 am

Triggerhappy wrote:PS: cornflakes a laser needs a reactor and radiators and targeting systems, and all that needs maintenance.


And your "hurl a thousand tons around with 5g" system doesnt need maintainance or power? :P

A laser can feed of the same insignificant power source your movement system does into the same a smaller capacitor bank than your movement system has to use and target using the same system you use to track rocks to jank out of the way.

Your system isnt maintainance or power cost free either :P

Triggerhappy wrote:Not significantly dino, not significantly. It will be smaller but not by much. I understand surface area.


Very significantly actually :P
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