How much do you know?

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asterix

Comrade Member
Location
Limoges or York
This topic reminds me of Douglas Adams' 'Ruler of the Universe'.

MAN: Hello?

FORD PREFECT: Er, excuse me, do you rule the Universe?

MAN: I try not to. Are you wet?

FORD: Wet! Well, doesn't it look as if we're wet?

MAN: That's how it looks to me, but how you feel about it might be a different matter. If you find warmth makes you feel dry you'd better come in.

 
The older I get, the less I seem certain of anything and the more wary I become of people who seem to have all the answers.

All knowledge is transitory. When we shuffle off the planet, we take it all with us - unless that is we write it down or record it in some other way. This is why I've always been intrigued by people who write for a living, or who indulge in artforms that create lasting artifacts. Do they take part mainly for recognition and to make a living, or are they aware that on some level this is all that will remain of their intelligence and knowledge after they are gone?

After children, books and other forms of recorded knowledge are a great legacy for anyone to leave.
 

MacB

Lover of things that come in 3's
I don't see why there's so much fun pokery taking place regarding the hugely entertaining and well received plywood fabrication videos I posted.

It's just the element of surprise, most of us had you down as a really boring old git but, in light of the plywood revelations, we have to revise that opinion, you're obviously a really fun guy :tongue:
 

Arch

Married to Night Train
Location
Salford, UK
On that basis I am open to accepting that all of you are bots except those I have met in the flesh, and even then you could still be a figment of my imagination.

Jeez, depending on which selection of us you've met, that could be a very deranged imagination!



YouTube doesn't work very well on my computer, I'm looking forward to Thursday when I can see the plywood video at work.

Does anyone want to know an interesting thing about foil?
 

Yellow Fang

Legendary Member
Location
Reading
I've often wondered how we know what we know. Okay, experts may have developed theories and proofs, but if you haven't got their brainpower, learning and time to work through it all, you basically just have to take their word for it. I reckon a lot of people work by trying to figure out the motives of the people making the arguments if they can't understand the arguments. Lots of people just seem to make their mind to choose a position and stick to their guns. Probability is either 0 or 100%.
 

Fnaar

Smutmaster General
Location
Thumberland
(Rumsfelt): There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don't know. But there are also unknown unknowns. There are things we don't know we don't know.
 

Arch

Married to Night Train
Location
Salford, UK
Ooh - me, Miss, Miss! Miss!

Hoorah!

Foil is made by rolling aluminuim through pregressively closer rollers (just like pasta). But there's a limit to how close together the rollers can be and not mangle the foil, and that limit happens to be about twice the final thickness required. So the final pass is of two sheets together, giving two sheets of half the width, which are then peeled apart.

And that is why foil is shiny one side, and matt the other.

A frind told me that on a group bike ride (he'd seen it on telly), and for the rest ofthe day we were each racing to tell other people before the other one did....
 

Night Train

Maker of Things
No piggeryjokery here, 3BM! I liked it nearly as much as Arch's Schwalbe factory video. But then I am a work-shy slacker...

I'm not sure I've seen that video.

The plywood one was good, I must get the 'How It's Made' video on plywood for my students to watch.

I guess, like some writers, I am attempting to store some of my knowledge by teaching. I'm not planning on 'checking out' but you can never be too sure.

One of the things that really got to me about other peoples' 'knowedge' was one of the reasons I left another forum for this one. The people there felt that they knew more about some of my life experiences then I did and would go to great lengths to tell me I was wrong about some things that I personaly experienced even when they had never known or met me.:huh:
 

slowmotion

Quite dreadful
Location
lost somewhere
Foil question.

Is the matt side the one that touched the rollers?
 

Arch

Married to Night Train
Location
Salford, UK
Foil question.

Is the matt side the one that touched the rollers?

I don't know. I think it was the shiny side that had been against the rollers, but I didn't see the programme myself...

Yeah, NT, it's funny how some people think they know more about a person than that person.

As for what I know I know: well, I'm pretty good on knitting, up to a point, and animal skeletal anatomy, and some stuff about cycling. And a fairly large amount of utter triva. But I'm always open to learning more - that's the fun bit, the learning, not the knowing.
 

slowmotion

Quite dreadful
Location
lost somewhere
Arch, wiki to the rescue!


The continuous casting method is much less energy intensive and has become the preferred process.[sup][5][/sup] For thicknesses below 0.025 mm (0.00098 in), two layers are usually put together for the final pass and afterwards separated which produces foil with one bright side and one matte side.[sup][6][/sup] The two sides in contact with each other are matte and the exterior sides become bright, this is done to reduce tearing, increase production rates, control thickness, and get around the need for a smaller diameter roller.[sup][6][/sup]
 

rich p

ridiculous old lush
Location
Brighton
Hoorah!

Foil is made by rolling aluminuim through pregressively closer rollers (just like pasta). But there's a limit to how close together the rollers can be and not mangle the foil, and that limit happens to be about twice the final thickness required. So the final pass is of two sheets together, giving two sheets of half the width, which are then peeled apart.

And that is why foil is shiny one side, and matt the other.

A frind told me that on a group bike ride (he'd seen it on telly), and for the rest ofthe day we were each racing to tell other people before the other one did....

That, Arch, has put 3BM firmly in his place. I'd forgotten the Schwalbe tyre video - that was gripping :rolleyes:

Do you or 3BM have any videos of welding? I'd find that rivetting :tongue:
 
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