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Seriously thick!

I was watching "The Naked Time", one of the earliest episodes of the Original Star Trek series. Scotty has to cut through a bulk head to open a door to engineering. When he pulls the part out, the bulk head is 1/4" thick.

Wow, for a space craft, that is pretty darn thick. To hold in pressure versus vacuum, you only need about the same thickness as a soda can.

So maybe it is more structural, or to hold up against weapon fire, etc. Also, I'm SURE metal alloys (or what ever) will be much stronger than what were using today, for the same volume.

I was watching Amok Time a few days ago. So funny when Spock goes into heat.

You must have enjoyed watching Scotty pass on the secret of transparent Aluminum to the polymer magnate in ST IV. "Hello computer"

Seriously thick!

For something built in space and meant to stay in space as a battleship strength is probably more important than light weight.

It is interesting. There is more iron in the Asteroid Psyche than we are presently mining per year, by a factor of almost 10 Million. Star Ships will not be built in Earth orbit. They will be built in the Asteroid belt.

And IIRC the LEM had a wall thickness comparable to 2 or 3 layers of aluminum foil. Of course there were many structural members as well.

Quote:

Originally Posted by red-beard (Post 9320211)

Your mind in set in the wrong century where thickness equates to weight.

Just this Saturday morning there was this science program on TV which featured a product which could be used on a future USS Enterprise, they were calling it "metal foam".

This Lightweight Metal Foam May Be The Future Of Bulletproof Armor
This Lightweight Metal Foam May Be The Future Of Bulletproof Armor | Huffington Post
http://img.huffingtonpost.com/asset/...300706afa.jpeg

Quote:

A composite metal foam that stops armor-piercing bullets in their tracks could be the future of bulletproof body and vehicle armor, scientists say.

Researchers have invented a new type of metal that pulverizes bullets
http://qz.com/659130/researchers-have-invented-a-new-type-of-metal-that-pulverizes-bullets/

Quote:

This is no ordinary metal. Created by melting aluminum around hollow metal spheres, composite metal foam is 70% lighter than sheet metal and can absorb 80 times more energy than steel. It is fireproof, radiation-resistant, and even bulletproof.

Researchers at North Carolina State University recently formulated and tested a metal foam so strong that it shatters armor-piercing bullets upon impact, according to a paper recently published in Composite Structures.

The metal foam can stop a bullet at a total thickness of less than an inch, according to lead researcher Afsaneh Rabiei. “Our material is the strongest one yet. There’s nothing like it on the market,” she says.

Quote:

The potential applications of Rabiei’s new metal foam, which is stronger and can absorb high levels of energy, range from body armor to space shuttle siding.

“If tomorrow I can reach out to an investor in car companies and they want to put it behind the bumpers of cars, I’d be more than happy with that. Or, if someone wanted to put it in body armor or vehicle armor, I would sure be delighted to help that happen. Any of these applications can save lives,” she says.

I never mentioned weight, I said thickness.

The doors in Star Wars are even thicker. Remember the Lightsaber burning through? That was armor however.

Syntactic foam! I once dispersed salt into a certain polymer and then let it cure, soak the polymer in water dissolving the salt producing a very very light weight polymer foam with out the use of a blowing agent. Had great properties such as tensile and elongation. Never did much more with it. I guess one could do the same with molten metal.

We snapped Harrison Ford's leg with a door on the Millenium Falcon in the last movie.

Quote:

Originally Posted by Hugh R (Post 9320383)

We snapped Harrison Ford's leg with a door on the Millenium Falcon in the last movie.

I'm surprised you weren't fired! SmileWavy

Quote:

Originally Posted by red-beard (Post 9320294)

I never mentioned weight, I said thickness.

You also mentioned the strength (against a vacuum), strength to volume, resistance to weapon fire, thickness related to a soda can, and thickness of 1/4" which are weight related thickness comparatives as you specified no change in material (aluminum like a soda can?).

I read what you wrote and addressed everything in it.

A simple thank you would suffice.

I always though a deep spacecraft should have dual hulls.

But they are proposing an inflatable spacecraft so what do I know.

Also... isn't it odd star track was supposed to be about a peaceful scientific exploration... and yet they festooned the ship with weapons. ;)

What if you were to hit a bug at warp speed? Could lose a lot of spaceships that way.

Quote:

Originally Posted by red-beard (Post 9320258)

Star Ships will not be built in Earth orbit. They will be built in the Asteroid belt.

And they won't be built for peaceful space exploration.

Quote:

Originally Posted by RKDinOKC (Post 9320975)

What if you were to hit a bug at warp speed? Could lose a lot of spaceships that way.

They have the deflector beam to prevent that. It pushes everything out of the way so they don't hit it. That is the big round thing right on the front.

I have been watching all the original episodes of Star Trek on Amazon. They have the remastered version on Amazon. It is in HD now so it is real easy to see the seam on Spock's ears. It is funny how low budget the props were. And it was done so long ago. There are no flat screen gizmos. Kirk gets updates on a piece of paper. In the Pilot episode before Kirk when Capt. The episode where Pike is captured they show the orders come out like a FAX. ;)

The original communicators were HUGE. Bigger than a iPhone 7 plus, and the gold lid opened up and had the transistors in view. Since Transistors were high tech back then that was something to show. The communicators were reduced in size a few episodes later.

Yea, I am a geek.

I thought this thread was about the pork belly sandwiches at Carls jr.

Quote:

Originally Posted by GH85Carrera (Post 9322418)

They have the deflector beam to prevent that. It pushes everything out of the way so they don't hit it. That is the big round thing right on the front. .

Oh, that must be why when the deflector sheilds go down the get so much damage from a flash light.