Activity for jhch‭

Type	On...	Excerpt	Status	Date
Answer	—	A: What to look for in a electronic inflator for an inflatable stand up paddleboard? Inflatable SUPs of similar lengths to yours seem to have around 250-600L of volume, mostly on the lower end of that scale. @Separatix points out that 600L is "a real anomaly" in volume. (Source Source Source) I would not suggest using a tire inflator, as these are meant for low volume, high pressure... (more)	—	over 4 years ago
Answer	—	A: How to properly insulate electronic devices in a car There are three primary things to think about when keeping your personal electronic devices in a cold car (with you) overnight. Operating Temperature If you want to be able to use your phone and camera immediately in the morning (or at night), then they need to be relatively warm. As @Bee notes in ... (more)	—	over 4 years ago
Answer	—	A: When clipping into quickdraws, is it dangerous to pass a finger through the gate? In short: Yes this has happened, and so it is a realistic concern. It's not common, but I have heard of it happening (usually resulting in a small finger scrape, not degloving). People in this reddit thread say they've seen it happen. To illustrate the danger, try it. Put your pointer finger in b... (more)	—	over 4 years ago
Answer	—	A: How to progress to harder graded problems? The specifics of this are unique to the person, but in general: Just keep going climbing. There are (very broadly speaking) two factors which determine how hard you can climb. Technique, or how you move and position your body Strength, or how strong your body is Going climbing will improve both... (more)	—	over 4 years ago
Answer	—	A: How to touch up scratches on a black anodized aluminum flashlight? "How can I [make] it completely black?" Cover it with something black. Drawing on it with a black marker will work, but that might rub off after serious use. You could use black spray paint, but that requires etching into the rest of the anodized part. Black electrical tape would be great, and mak... (more)	—	over 4 years ago
Answer	—	A: What is the term for completing a climbing route uncleanly? In aid climbing this is still sending since hanging on protection is part of the game (as @StrongBad points out, hanging on the rope is a little different than hanging on protection.) In sport climbing, however, there is no specific word or phrase. I think the most common ways to describe it are: ... (more)	—	over 4 years ago
Answer	—	A: How well do mosquito clothing patches work? Science says they don't work. Citation from Charlie and another about citronella in general. (It's possible all these studies are funded by the DEET companies, but I don't wanna get into mosquito-industrial complex conspiracies.) That being said, there are people who swear they keep mosquitoes awa... (more)	—	almost 5 years ago
Question	—	Can a Gri-Gri work if the cam is prevented from engaging? Based on comments on this question. If the moving cam on a Gri-Gri is prevented from engaging (perhaps by a belayer firmly holding onto the device), can you still brake effectively? By "brake effectively", I mean: use the traditional brake position with your right hand pulling down on the rope ar... (more)	—	almost 5 years ago
Answer	—	A: How to belay top-rope climbers who are ascending quickly? Special devices: @imsodin is right in suggesting a GriGri. For the method: The common trick is to have two "belayers." One attaches the GriGri on their harness as usual. The second person stands facing the primary belayer and pulls hand over hand on the rope (essentially pulling away from the pri... (more)	—	almost 5 years ago
Answer	—	A: Sailing rules within three boat length circle In short, yes. The rules in Section A (right of way) always apply, even when constrained by rules in Section B and C (which include room at marks). Boat A in your scenario is required to gybe at the mark. But let's look a little deeper at the scenario you describe, because it's a good question and ... (more)	—	almost 5 years ago
Answer	—	A: What are the strongest knot(s) for using on FLAT webbing slings? (joining and bight termination) It's unclear if you're asking about sewn slings or single lengths of webbing--so I'll answer each separately below. The most important thing when using webbing (sewn loop slings or single lengths) is that any knots should leave the webbing laying flat. There should be as few twists as possible in y... (more)	—	almost 5 years ago
Answer	—	A: How would a sea turtle end up on its back? There are a few possibilities: Other Turtles This site about pet turtles mentions the possibility that turtles fighting over a mate (or actually mating) may end up on their backs. When breeding season comes around, adult male turtles might start fighting over the females. A stronger male mi... (more)	—	almost 5 years ago
Answer	—	A: Is there any evidence that the small canisters (10 liters) of 95% oxygen actually help with altitude sickness? There is some evidence that increasing the concentration oxygen in the air breathed can help with mild symptoms of altitude sickness. Source here looks at long-term increases in oxygen concentration at high elevation and finds benefits--whether or not the same happens with short bursts from a canis... (more)	—	almost 5 years ago