man who is naked under his kilt gives vocabulary lesson

[vorpallemur]

I may be viscous as a brick, but I thought it was more thick than slippery. BTW, Tencel is rayon, too. Bamboo can be turned into fibres, but I think that is accomplished similarly to rayon, so bamboo textiles are viscose, too. Some people refer to the original cellulose fabric as "way wrong"...

The origin of the cellulose makes no difference to the final product. Step 1 of the rayon making process is basically "Take some cellulose source (wood fibers, cotton waste, bamboo, scrap rayon) and make it pure cellulose". how you do that depends on what you start with, but after you've done that, it makes no difference. The differences in weight, feel, etc, that various rayons have is a function of the manufacturing and finishing. Anybody who claims their fabric is "bamboo" is wrong; anyone who claims it has magical properties (anti-microbal, cooks your dinner, whatever) because it's bamboo is lying. (They're probably lying about even being "rayon from bamboo", because much of the fabric that's claimed to be that isn't, Chinese suppliers being what they are.) The FTC has finally noticed, and started to take action against these people.

By the way, it is possible to make a fabric from fibers from bamboo (something like how linen is made from flax), but it's expensive (very labor intensive), and you wouldn't want to wear it.

Tencel is a trademark for lyocell. Lyocell is a solvent spun rayon, which is a nearly closed-loop system, as far as the (really, really) nasty chemicals required for rayon production goes.

[Bugbear]

And here I thought that bamboo thread came from the cute panda bears...

[Macnut42]

I just hope your ghillie brogues have slip-resistant soles. ;-)

[CDNSushi]

Well alright, let's be pedantic then.

Viscose, if you believe Wikipedia, is defined as a "viscous liquid" used to make rayon and cellophane. Now, the word "viscous" really has nothing to do with being slippery as much as it does with being "thick." The thickness of a liquid is its viscosity, so water is not very viscous. It is thin. Whereas, 60W motor oil is very viscous. Oil is considered slippery, but in terms of viscosity, honey tends to be very viscous, and no one I know would consider honey to be slippery.

In fact, the word "viscous" derives from the word "viscum" which is Latin for mistletoe. They used to make a viscous glue from mistletoe, actually.

http://en.wikipedia.org/wiki/Viscose
http://en.wikipedia.org/wiki/Viscosity
http://en.wikipedia.org/wiki/Motor_oil

[Bugbear]

Don't forget glass. I don't have a source to cite right off hand, but glass, just regular glass, has been described to me, by many science teachers, as viscous... just over the time span of centuries rather than nanoseconds or even days. So a glass window, over hundreds of years, will become thicker at the bottum than the top. Ehh, what can you do.

Hmmm, if bamboo thread doesn't come from cute panda bears, does that mean eucalyptus rub doesn't come from koallas?

[MacLowlife]

Thicker at the bottom. Many of us know about that.

[vorpallemur]

Thicker at the bottom. Many of us know about that.

No. Many of you *think* you know that. It's simply not true. Glass is a solid. It doesn't flow on human time scales. windows that are thicker at one end than others are a result of primitive glass rolling techniques, that resulted in non-uniform thicknesses. If you actually look at windows, you'll find that the thick side is as often on top as on the bottom, and sometimes on one side, or in the middle.

[Chas]

No. Many of you *think* you know that. It's simply not true. Glass is a solid. It doesn't flow on human time scales. windows that are thicker at one end than others are a result of primitive glass rolling techniques, that resulted in non-uniform thicknesses. If you actually look at windows, you'll find that the thick side is as often on top as on the bottom, and sometimes on one side, or in the middle.

Silly me. Just goes to show how easily these things are misunderstood. Here was me thinking that MacLowlife was talking about his own bottom.

Thicker at the bottom. Many of us know about that.

Regards

Chas

[irishrob]

"But then again, underneath all my clothes, I too, am naked" he said visciously...as he noticed that someone had changed the vicosity of his Body Glide.

All the best,
Rob

[Bugbear]

No. Many of you *think* you know that. It's simply not true. Glass is a solid. It doesn't flow on human time scales. windows that are thicker at one end than others are a result of primitive glass rolling techniques, that resulted in non-uniform thicknesses. If you actually look at windows, you'll find that the thick side is as often on top as on the bottom, and sometimes on one side, or in the middle.

It looks like the time scale is thousands of years for the flow of glass.

http://www.jimloy.com/physics/glass.htm
That is extremely high viscosity, but still viscous. You're right about old windows not showing these sighns, though.