Cubic feet vs. “X-foot cube”


General Discussion

The Exchange

It’s driving me nuts and I can’t stand it any more. Paizo has a habit of saying the things like “you can close up to 25 bulk in this device’s pocket space, a 3-foot cube.” (Mk1 null-space chamber) But “a 3-foot cube” doesn’t actually mean anything! Is that 3 cubic feet or a cube 3 feet on a side?

Based on the amount of air contained within (assuming a medium creature - like a modern human - uses 11000 liters per day), it appears that 3 cubic feet is the right answer. But that falls apart when we look at higher Marks. If a Mk3 is only 9 cubic feet it should be enough air for one medium creature for 30 minutes. If, however, it is a cube 9 feet on a side then the listed two days is about right.

In the grand scheme of things it’s not a big deal. Bulk is bulk. It just bothers me. BTW, the discussion that led to this was “can I put a police cruiser (10’ x 10’ x 5’) in a Mk4 null-space chamber (12-foot cube)?”

The Exchange

Could have sworn I posted this in Starfinder general. Flagging myself for movement.


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Pathfinder Maps, Starfinder Adventure Path, Starfinder Maps, Starfinder Roleplaying Game, Starfinder Society Subscriber; Pathfinder Roleplaying Game Superscriber

In normal usage, a 3-foot cube would be a cube 3 feet on a side, which would work out to 27 cubic feet (3 x 3 x 3).


cube 3 feet on a side, its about the same size as the old bag of holding (to within a few inches)

The Exchange

David knott 242 wrote:

In normal usage, a 3-foot cube would be a cube 3 feet on a side, which would work out to 27 cubic feet (3 x 3 x 3).

That’s the problem. It’s not something that IS in normal usage (at least in the American Mid-Atlantic or South).

You would say “27 cubic feet,” “a 3’x3’x3’ cube,” or possibly “3-foot cubed” if that’s what you meant.

For what it’s worth I agree with you that it is probably 3x3x3. But during our discussion (it was one of those silly “hey, what if...” meandering conversations after a game) several people disagreed. I thought I could solve it with air supply math, but as you can see above... it didn’t.


Belafon wrote:
BTW, the discussion that led to this was “can I put a police cruiser (10’ x 10’ x 5’) in a Mk4 null-space chamber (12-foot cube)?”

I don't recall how wide the opening is. The cruiser should fit with room to spare according to the dimensions, but you might have to assemble the cruiser in the chamber like a ship in a bottle.


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breithauptclan wrote:
Belafon wrote:
BTW, the discussion that led to this was “can I put a police cruiser (10’ x 10’ x 5’) in a Mk4 null-space chamber (12-foot cube)?”
I don't recall how wide the opening is. The cruiser should fit with room to spare according to the dimensions, but you might have to assemble the cruiser in the chamber like a ship in a bottle.

I've always considered the bags to have a garbage bag sized opening. I think ancient treasures revisited mentioned something about treasure having to fit into the bag (but that may not hold in the year two thousand.

in the year two thousAAAAAAND


Belafon wrote:
BTW, the discussion that led to this was “can I put a police cruiser (10’ x 10’ x 5’) in a Mk4 null-space chamber (12-foot cube)?”

Oh, it can enter the NSC just fine.

CRB 227
"When you press a button on the
side, the device creates a circular extradimensional rift to a pocket
space, the size of which is determined by the null-space chamber’s
model
.
"

But it might be too bulky:

"Mk 4: You can close up to 200 bulk in this device’s pocket
space, a 12-foot cube. It can hold enough air for one Medium
creature or two Small creatures for 1 week.
"

And there seems to be no info on vehicle bulk.

But there's precedent for carrying transportation in your pocket, such as the motospheres in PW 202.


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Pathfinder Pathfinder Accessories, Starfinder Adventure Path, Starfinder Roleplaying Game, Starfinder Society Subscriber; Pathfinder Roleplaying Game Superscriber

No one seems to have trouble understanding what a 5-foot square is. A 5-foot cube is the same thing but in one extra dimension.


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Pathfinder Roleplaying Game Superscriber; Pathfinder Starfinder Roleplaying Game Subscriber

I've always understood it to mean x-feet on a side.

Seemed pretty obvious to me. Never once considered that it might be the other way.

Also, I hear that kind of language being used down here in the South all the time, and we've always interpreted it that way.

Maybe the writer is from my neck of the woods? :P

Sczarni

Fumarole wrote:
No one seems to have trouble understanding what a 5-foot square is. A 5-foot cube is the same thing but in one extra dimension.

^ this.

Scarab Sages Starfinder Design Lead

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An x-foot cube is a cube that is x feet per side.


Owen K. C. Stephens wrote:
An x-foot cube is a cube that is x feet per side.

dammit no one told me this game was going to involve algebra...


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Quick, solve for cube!

Liberty's Edge

From a word count standpoint, it makes more sense to just state a single side, since squares and cubes have the same length on all sides. a tiny ounce of math will be needed to convert to square/cubic feet.

Sczarni

Belafon wrote:
It’s not something that IS in normal usage (at least in the American Mid-Atlantic or South).

Sounds like a regional problem.

The plastics store I go to here in Cali sells "1 inch cubes".

And Paizo is in Seattle...

So the West Coast is where it's at ^_^

Dataphiles

Owen K. C. Stephens wrote:
An x-foot cube is a cube that is x feet per side.

Thanks for the reply.


Owen K. C. Stephens wrote:
An x-foot cube is a cube that is x feet per side.

Wait so the world isn't flat??????? :O


Pathfinder Maps, Starfinder Adventure Path, Starfinder Maps, Starfinder Roleplaying Game, Starfinder Society Subscriber; Pathfinder Roleplaying Game Superscriber

The math is certainly easier by Owen's definition. You have a simple calculation to figure out the volume of a cube x feet on a side, but you have to extract a cube root to figure out the dimensions of a cube with a volume of x cubic feet.


Pathfinder Roleplaying Game Superscriber; Pathfinder Starfinder Roleplaying Game Subscriber
David knott 242 wrote:

The math is certainly easier by Owen's definition. You have a simple calculation to figure out the volume of a cube x feet on a side, but you have to extract a cube root to figure out the dimensions of a cube with a volume of x cubic feet.

Spreadsheets! Everywhere spreadsheets!


Nefreet wrote:
Belafon wrote:
It’s not something that IS in normal usage (at least in the American Mid-Atlantic or South).

Sounds like a regional problem.

The plastics store I go to here in Cali sells "1 inch cubes".

And Paizo is in Seattle...

So the West Coast is where it's at ^_^

In the southeast we use x-foot square and x-foot cube all the time. The only time I hear cubic anything is when discussing volume of a liquid or gas. I honestly don't understand the confusion between 3 cubic feet and a 3 foot cube.

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