Search results

I have my poncho covering down to about knee height.

I am not certain that it makes any sense from water protection point of view, of course as a style statement it prevails. ;)

If the outer fabric is air impermeable no magic is going to make any inner breathable layer breath. There are a few kind of exceptions to this, kind of workarounds. In cool conditions water is going to condense on the inner side of the outer layer, for a while it seems to work but then...

OK here goes, two things, breathable (water in gas form) or water permeable membranes that block the liquid water and water repellent on the outer fabric. Two different things that still work together. Without the water repellent treatment the garment stops "breathing" the moment the outer...

It looks like there is solid corrosion products all over the inside of the tube. I guess the rust colour on the sides is from there, of course with cracks it could have been from outside water too. It looks to me that it has cracked on the sides first, which is a bit strange, unless it has...

Work hardening of ferritic steels is not quite the same as fatigue but as it involves plastic deformation it can easily lead to it. Plastic deformation tends to cause fairly fast fatigue.

A lot of books like that written in this obscure Finno-Ugric language. I am afraid none has been translated into the Romano-Germanic creole spoken in the Misty Isles.

Facts seem to be getting more complicated and the sources less reliable. It is easier to attack the messenger.

Citric acid tends to form chemical complexes with many metals so it is no wonder. Also I am slightly wondering why it would be a problem steel pan releasing iron, any steel anywhere is going to do that (excluding some SS that release very little). Most steels made from scrap contain some...

This sentence explains some of the worst mistakes made in many cases. It is not a question of producing huge amounts of electricity it is how to use as little as possible and still achieve your needs.

Oh yes Finns tend to be very slightly pedantic, the other national sport is understating. :angelic2:

I have a faint recollection that one of Google's server farms here uses the waste heat for warming something useful, district heating or a green house.

Since my early teens I have been using other people's junk, namely mil surplus. At first because of the low cost but later because it often is no-nonse functional. Though I wish somebody told BW that not everything has to be strong (and heavy) enough to take a tank driving over it. So being...

A few weeks ago did a walk in Lapland, the wooded part. Four days and about 60 km. Had #1 son checking my orienteering. It was probably my hardest 60 k as local reindeer had been very lazy and the upkeep of trails had not been done so we looked at the map and went that way. The amount of...

It is various fluorine compounds that are the problem in that case. One just does not heat up PTFE coatings too much (without having problems). Some of the ceramic coatings are not a problem in cook ware.

Not knowing but I strongly suspect that the problem is with cast items where you can throw almost anything into the crucible.

Fabsil seems to be a silicone based water repellant. So it should only be used on the outer fabric not Goretex itself. Hmmm. it might not actually wet GT so maybe it does not block all the pores.

When in the army there was a saying that the only thing you can give a fresh conscript is a piece of railway track, anything else and they'll break it. There was some discussion about the length though, some thought 40 cm some 60 cm, anything shorter and they'll lose it, longer and they'll find...

Rayon and viscose the same material. There are several ways to regenerate cellulose to fibers and the best of them are closed processes. Some of these can use old T shirts as partial material feed.

Yup, look at lake Aral. or what is left of it. It vanished because of irrigation for cotton. A small part of it still remains and apparently is even slightly enlarging. The other problem is the amount of pesticides used in the growing, cotton fields are not healthy places.