I don’t know if man went to the moon in the sixties

[peter eldergill]

I am baffled as to where the 210 cubic feet comes from.

DakDak's dimensions given in inches I get about 450 cubic feet and using the feet dimensions, I get 489

Can someone explain to me?

Pete

[Bob B.]

The math is something like
(Radius( x) pie squared)times the height, this gives you a cylinder you divide that in half this gives you a cone.

Something like that, but that's not it.

The Smithsonian Institute says this comes out to 210 cubic feet.

No they don't.  All sources say the CM's habitable volume was 210 cubic feet.  This is the volume left over after you subtract for all the stuff you said wouldn't fit.

DOES ANYBODY DISAGREE WITH THESE FIGURES???

Yes

I am still coming up ith 210 cubic feet not 490 Maybe you should check your math

No, you need to check your math.

Someone said the CM was 11.4’ high, but this includes the boost protective cover, which is jettisoned during launch.  Without the cover, the CM was essentially two attached geometric shapes – a truncated cone and a dished bottom.  The truncated cone was 12.8333’ diameter at the base and 6.75’ high (not including the docking probe sticking out the top), with a sidewall slope of 32.5 degrees.  The dished bottom also had a diameter of 12.8333’ and its height was 2.0833’.

The volume of a truncated cone is,

V = pi*H/3 * (R² + Rr + r²)

Where H is the height, R is the radius of the bottom, and r is the radius of the top.  We have H = 6.75’, R = 12.8333/2 = 6.4167’, and r = 6.4167–6.75*tan(32.5) =  2.1165’.  Therefore,

V = pi*6.75/3 * (6.4167² + 6.4167*2.1165 + 2.1165²) = 418.7 ft³

The volume of the dished base is more complicated to calculate, but we can simplify by assuming it is half of an oblate spheroid.  The volume of a spheroid is,

V = 4*pi/3 * a * b * c

Where a, b and c are the radii in each of the three axes.  In our case, a = b = 12.8333/2 = 6.4167’, and c = 2.0833’.  Therefore, a half spheroid with our dimensions has the volume

V = 4*pi/3 * 6.4167² * 2.0833 * ½ = 179.7 ft³

Thus, the total volume of the CM is approximately

V = 418.7 + 179.7 = 598 ft³

[Bob B.]

I am baffled as to where the 210 cubic feet comes from.

DakDak's dimensions given in inches I get about 450 cubic feet and using the feet dimensions, I get 489

Can someone explain to me?

Pete

210 cubic feet is the published number for the habitable volume of the CM.  The habitable volume is essentially the empty space in the middle of the CM in which the astronauts moved around.

DAKDAK writes "I am still coming up ith(sic) 210 cubic feet" as if he calculated it, but I'm sure that's a lie.  All indications are he doesn't know how to calculate it, as is evident by the incorrect formula he gives in post #55.  I'm sure he just read the 210 number and repeated it.  It's also pretty clear he doesn't know what it means.

[Chew]

Let's examine the Apollo Command Module
please correct me if I claim anything that is not correct
 The apollo command modules were the same size on all Apollo
missions

 now I am only refering to the actual Command Module not the
Service module or the tower
please correct me if I claim anything that is not correct

You claim all the listed components could not have fit inside the CM yet you make no attempt to provide the volume of each component nor do you tabulate the total volume of all the components. Your argument is a classic example of the argument from personal incredulity.

You show a quote that states the CM had 15 miles of wiring. Have you calculated the volume of 15 miles of wire?

[Tedward]

This is confusing. Its a like a spinning top with theories flying off at all angles.

[raven]

This is confusing. Its a like a spinning top with theories flying off at all angles.

Or a nauseous child on playground roundabout.

[Chew]

26 AWG, with insulation as thick as the wire itself, 15 miles long, occupies about 1/10 the volume I intuitively thought it would.

[Bob B.]

Just to clarify my previous calculation, the 598 ft³ is the total volume based on the overall outside dimensions of the CM.  This includes the structure itself as well as unpressurized spaces.  According to this source, the pressurized volume was 366 ft³.  I've done my own back of the envelope calculation from a scale drawing and the 366 ft³ figure looks to be about right (I actually estimated about 400 ft³).  The same source lists the "living space" as 218 ft³, though I've seen 210 ft³ given in other sources.

To summarize, we have

Total volume = 598 ft³
Pressurized volume = 366 ft³
Habitable volume = 210 ft³

The difference between the total and pressurized volumes, 232 ft³, included the spacecraft structure, forward tunnel, thermal protection system, parachutes and other recovery equipment, reaction control system including propellant tanks, and all other equipment not housed within the pressurized hull.

The difference between the pressurized and habitable volumes, 156 ft³, included the control panels, interior electronics and equipment, and the storage lockers.  I don't know exactly how the habitable volume was calculated, but my guess is that things like the crew couches are included within this space.

[Jason Thompson]

Do you hear yourself water bound in rocks??

Ah, the last refuge of the ignorant: sheer disbelief. Well, you are welcome to believe and disbelieve what you like, but it is a FACT that water does indeed get chemically bound into minerals. Look up what 'hydrated' means for starters.

The moon is a type of water tank and fills up every month,by some form of snow.

And your evidence for this conclusion is what, exactly? For that matter, your qualifications in the relevant fields are what?

And of course food is wet maybe not biscuits or crisps but maybe stew or soup

Those biscuits and crisps still contain a significant percentage of water, which is still higher than the percentage of water found in any of the lunar samples.

[Jason Thompson]

I do not agree you see the moon unlike the earth does Emmit lot and lots oflight when The  moon is full.

Your agreement or lack of it is irrelevant. The Moon does not emit its own light at all. It reflects sunlights. That is why we have phases of the Moon in the first place.

Albedo is not measured by percent Actually the lower the albedo the more light is being emitted

Where do you get this idea from?

I attached a real picture of the moon it is definitely emitting light

No, it is reflecting light, which comes from the Sun just as the light we get here on Earth does.

Do you actually know anything about any science relevant to the arguments you are making?
[/quote]

[raven]

Everything I can add to this conversation has been said, and said better, by others, so I just I wish I had a dozen more sets of hands so I could facepalm more.

[cjameshuff]

Everything I can add to this conversation has been said, and said better, by others, so I just I wish I had a dozen more sets of hands so I could facepalm more.

It's nearing MoonMan (of "alleged vacuum" fame) levels of ignorance, inability, and misinformation. Monthly snow on the moon?

[Rob260259]

I don't know if man went to the moon in the sixties or not, but the record of the Apollo missions seems to be completely false

Sorry, but all your claims have been refuted here by qualified people who DO know what they're talking about. I find it hard to believe you actually have read all their posts and comments.

Google Moon Base Clavius. Please. And enjoy the feeling of educating yourself.

[Abaddon]

This is developing into a full blown Gish Gallop.

Is there any chance of dealing with one claim at a time?

[scooter]

DAK, another "thinkabout"...the amount of "trash" was lessened during the mission. Some was jettisoned from the LM during EVA (they talk about the "jettison bag"). Also, the LM was loaded with trash and unneeded items before jettison in lunar orbit before TEI. This also saved fuel and cleaned the cockpit up some.