furi
Mars
The Secret is to keep banging those rocks together.
Posts: 260
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Post by furi on Jul 15, 2007 8:08:30 GMT -4
I thimk a lot of the feathers you get for craftwork, have been washed and baked occaisionally dyed, to get rid of possible parasites and yukkines.
they might vacuum (low pressure) dry them after washing 'twould save on the leccy if a water Vac pump was used.
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Post by alex04 on Jul 15, 2007 9:00:39 GMT -4
The reason I baked a feather was because some months ago we had someone here who wanted to know what happened to the feather on the Apollo 15 mission when it hit the lunar surface. So I baked one and reported my findings. He ignored them, but did stop posting.... good info - that was the next thing the guy (that i was talking to) wanted to know, although he's not posting anymore ;D
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Post by BertL on Jul 15, 2007 9:19:01 GMT -4
It's almost freaky how much the person Jason was discussing sounds the same like the person alex04 was discussing. Brings up the feather, gets debunked, stops posting. It's a conspiracy!!11
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Post by ishmael on Jul 15, 2007 9:32:00 GMT -4
It's almost freaky how much the person Jason was discussing sounds the same like the person alex04 was discussing. Brings up the feather, gets debunked, stops posting. It's a conspiracy!!11 Perhaps they're just running the same software.
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Post by alex04 on Jul 15, 2007 9:57:27 GMT -4
It's almost freaky how much the person Jason was discussing sounds the same like the person alex04 was discussing. Brings up the feather, gets debunked, stops posting. It's a conspiracy!!11 Perhaps they're just running the same software. hehe, you could almost do a HB flowchart ;D
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Post by nomuse on Jul 15, 2007 19:45:06 GMT -4
This all sounds horribly familiar. The feather questions, the stealth HB approach, the refusal to offer up an alternative either for what they think should have happened to the feather, much less a theory why this didn't happen.
I think I am starting to really dislike stealth HBs. They wind themselves in such convoluted phraseology so as to never come out saying "I think this is evidence of a hoax." And they do a pretty good job of appearing reasonable -- until you realize that neither their questions nor their opinions have moved one iota from their first post up to their most recent post. Then you start to smell that distinctive ozone tang of a mind spinning in a closed circle.
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Post by Data Cable on Jul 15, 2007 23:16:27 GMT -4
that distinctive ozone tang Mmmmm... Ozone Tang.
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Post by JayUtah on Jul 16, 2007 0:15:50 GMT -4
I remember grape and orange flavor, but I must have missed ozone.
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Post by LunarOrbit on Jul 16, 2007 0:33:50 GMT -4
Didn't John Young have problems with methane tang?
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Post by alex04 on Jul 16, 2007 0:53:21 GMT -4
It's almost freaky how much the person Jason was discussing sounds the same like the person alex04 was discussing. Brings up the feather, gets debunked, stops posting. It's a conspiracy!!11 just noticed these comments on another vid i hadn't seen before - izeman458 (2 weeks ago) Combustion does require oxygen but melting and warping do not require anything except heat. Oh, and obviously the lower the pressure...the better. (Reply) (Spam) izeman458 (2 weeks ago) The boiling point of water in zero atmospheric pressure is uhmm...pretty close to zero I think, yep. So as soon as the feather sees zero pressure the moisture in it should go POP! Then we got the organic protein molecules in the feather too...heh damn, same guy. Hrmm he actually theorized that the feather would pop!?! Bert, I'm guessing it is indeed the same guy !
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Post by tofu on Jul 16, 2007 17:30:45 GMT -4
Suggest that your HB friend pay $30 for one of these: www.jardenstore.com/product.aspx?bid=18&pid=1277&cid=79it can suck the air out of a jar (note the yummy cookies in the pic). Put a feather in such a jar and see if "as soon as the it sees zero pressure the moisture in it should go POP!"
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Jason
Pluto
May all your hits be crits
Posts: 5,579
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Post by Jason on Jul 16, 2007 18:19:17 GMT -4
He's probably basically correct that whatever moisture was in the feather boiled away fairly quickly when the LM depressurized. The question is, would that make any difference in how the feather looked or behaved?
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Post by Jason Thompson on Jul 16, 2007 18:43:13 GMT -4
Here's another thing he ought to consider: Feathers are protein. Specifically, they are fibrous protein, but protein nonetheless. Proteins are routinely lyophilised for storage and transport, a process equivalent to that experienced on depressurising the LM. Guess what: they don't explode when you do it.
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Post by JayUtah on Jul 17, 2007 13:03:31 GMT -4
I've done the hammer-and-feather experiment repeatedly in classroom demonstrations. But instead of a hammer I used a penny. The demonstration takes place in a strong glass cylinder evacuated using an attached vacuum pump. But then again I also use feathers from a feathered boa borrowed from the theater (always makes for a smashing entrance), which are of the dried-and-dyed variety. I've never had a feather change appearance between air and vacuum.
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Post by BertL on Jul 17, 2007 14:34:07 GMT -4
I remember my teacher doing a hammer-and-feather experiment in a strong glass cylinder pumped as vacuum as possible. No changes there, either.
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