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location Ratisbon, Germany
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visits member for 1 year, 4 months
seen 34 mins ago
  • Physicist
  • actually PhD Student
  • addicted to LaTeX and typography since about 2005 or so.
  • great fan of TikZ, pgfplots, beamer and biblatex

2h
comment How to make DIY ice axe protectors?
Welcome to the great outdoors! I was so free as to edit your post a bit to make it more readable and concise. Please have a look around also at our help pages and tour to learn a bit more about good Q&A should look like.
Nov
17
comment Why some sleeping bags have four temperature ratings while others have only one?
possible, yes. At least you have to assume that the figures given are more or less useless or not comparable. As Ryley stated in the answer I have linked, they might write a rating at their bags which they expect protects them from being sued for, plus some error margin.
Nov
7
comment Arm compression sleeves for climbing
I still do, as the question was "Are there anecdotal or actual studies on the effectiveness of forearm compression sleeves for climbing?" Also you state that "Veins are through internal segments of the body and Arteries are in the outer segment" but according to my knowledge and Wikipedia it's reverse: "Veins are [...] often closer to the skin [than arteries]."
Nov
7
comment Arm compression sleeves for climbing
Sorry, but I don't see at all how that tries to answer the question...
Nov
6
comment Is it dangerous to sleep in a tent alone in a forest in -20?
This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post.
Oct
28
comment How to walk as a roped party on a glacier?
@Vorac They should, but that requires that everyone notices immediately and physics is quite merciless here. Now imagine that the last one in the row stumbles and nobody sees that until they get hit by the tightening rope. At that point the fallen one might be stopped as he transfers his momentum to the other members which then are kicked off their feet and start to slide. Compare pp. 26 and sequential of the presentation linked in my answer.
Oct
28
comment How to prepare for a long rocky alpine route, which is unusual for me?
I have to contradict in two points: moving together on the rope without any anchored protection in terrain where a fall is possible (glaciers are a special topic here) is highly dangerous as it contains the risk that the whole rope party will go down and this risk is higher than the individual risks of the singles members. Also advising on taking only a 15 to 20m rope on a several hundred meters elevation gain route is only useful in a very limited number of cases while it might be highly dangerous for many other situations. If one takes a short rope, one should very exactly know the route.
Oct
27
comment How to prepare for a long rocky alpine route, which is unusual for me?
What's the typical ratio between climbing and scrambling in the routes you have in mind? Is it basically climbing with some easier sections every now and then or is it scrambling, that has some occasional climbing sections?
Oct
13
comment How to belay on top of a pitch
It's only available in German (I know that you understand it) and I don't have time to write a full-blown answer, but the bergundsteigen journal has an article about the pro's of belaying from your harness instead of from the anchor: bergundsteigen.at/file.php/archiv/2012/3/… Hope it helps somehow.
Oct
5
comment Ration or consume water?
This answer would need some more information to be useful. Things that spring to my mind are "How much water did he have?", "Where did that happen?", "How was the climate when this incident happened?". Even then the answer's endangered to be only anecdotal and possibly cannot be generalized to other people and situations.
Sep
19
comment How to go about a long traverse with just Undercut holds?
+1 for the awesome night bouldering image!
Sep
19
comment How to repair gore-tex boots split?
Could you post a photo of the split?
Sep
11
comment Why do many climbers appear to not trust their belay loops?
The rope isn't really redundant! The core is taking the force while the sheath guarantees a good handling but could not take significant load. You could (more or less) use a rope core without sheath, but not the sheath without the core.
Sep
11
comment How many calories does hiking burn?
Just to be clear about the measurement method: does the app you're talking about rely on GPS, acceleration sensors to count steps, or both?
Sep
11
comment Fine tuning the Warm-up routines at Higher altitude
Looks like we have different notions of the intensity of trekking. I for myself wouldn't put it into the "rapid and/or vigorous movements" group.
Sep
8
comment How do I find north using a watch?
@OlinLathrop That's obviously the approach of someone who is familiar with maths, periodic phenomena, and the concept of phase! ;-)
Sep
8
comment How do I find north using a watch?
No time to write a full-blown answer right now, but look here: wikihow.com/Use-an-Analog-Watch-as-a-Compass
Sep
5
comment How to cross a 25 feet wide Crevasse?
Do I guess it right that you plan to go solo?
Sep
4
comment How to cross a 25 feet wide Crevasse?
I fear that question is a bit broad, as there are many different widths of crevasses from narrow enough to just step or hop across it to a full-grown bergschrund and very different conditions from rock-hard ice to powder snow. Therefore the techniques and equipment can vary widely and a single definite answer might get quite extensive.
Sep
4
comment What does it mean to free a climbing route?
@shimizu Exactly that. You will do anything that you do when you free climb any other route, you are just the first to do it.