I burn easier than popadoms on a BBQ and so factor 8000 is my usual stuff. That and a 'marathon-des-Sables'-style hat. I was really worried a while back about applying sun tan grease and then being unable to rock climb but got round it by applying it with a cloth - voilà!
IIRC the test for waterproofness (if that is a real word) is to put a column of water a certain diameter onto the fabric and increase the height of the column of water until the fabric leaks. The minimum is 1500mm height of the water.
Does anyone know what the diameter of the test sample/column is? I wonder if anyone here has actually tried to set up such a test??
Hydrostatic head tests? They're very simple tests and use an approximate 90 mm diameter circle for their area. Rainroom testing is another test that can find leaks and tests jackets, not fabrics. LOADS of jackets pass HH tests but fail the rain room.
I think it's easier. I did Cneifon Arete on a crisp and very cold wintery day and it was a fun and easy day out. I did Clogwyn y Person in heavy rain and found it a bit of an adventure and was glad of the rope.
From memory the gear on Clogwyn y Person wasn't that great, which is a contrast to the Cneifon Arete, which has solid belays, big spikes for runners, and loads of placements. Cneifon Arete has a short pitch of maybe 25 m at about mod, with only really one tricky move, to a good spike belay then the rest is grade 2 with a cool chimney/groove halfway up. As other posters have said, only bad thing about it is that it isn't longer! Great day out though, and of the two I preferred the Cneifon Arete.
Ah yes, I'd agree with much of that but I suppose it depends on what hill walking entails for each individual! I think the best way I've heard it explained is that protein and fat are maintenance and carb is your fuel. For most stuff you don't need too many carbs but if doing lots of exercise you need to increase carbs.
Ben, I think the problem with nutrition is that what works for one person doesn't for another. There is also a massive difference between metabolising food while doing normal life and when hacking up a mountain: one needs a steady burn, the other needs a fast output of calories (preferably without the up-down of sugar). If you got a guy sat in the office to eat fat instead of carbs he might well feel all right, but if you got him on a bike and asked him to cycle for six hours on just fat he'd bonk and die. No professional athletes that I can think of who takes part in high-output endurance sport bases their diet on fat, particularly on race day. The best thing to come out of the whole 'paleo' thing is the emphasis on fresh food and no 'junk'. Then again, that was always just healthy eating, wasn't it...?
Mark Twight wrote some really interesting stuff a while ago on the body going into 'shutdown' on really long days out (40+ hour single push stuff). Normally you'd eat carbs and your body would burn carbs and stored fat. However, after a while of no incoming fat the body would refuse to burn further fat, thus making you underfuelled. When you give it some more fat (he advised drinking olive oil...) the body realises more fat is coming so will then happily burn fat again. I find all this stuff absolutely fascinating.