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9

Tree's generate water as part of the respiration process (not to be confused with photosynthesis which is different). This happens at night and day. This is relatively static day or night. Photosynthesis alters dependant on sunlight, respiration (being the process of producing energy) does not. Respiration will alter dependant on the time of year, i.e. ...


6

In areas with quotas on permits, often only a certain percentage of permits can be reserved. The remainder are available on a first-come first-serve basis at the ranger station. For Mt Whitney, there is definitely a quota. There's likely to be a lot of competition to get a permit for such a popular trail at such a popular time of year. I would recommend ...


4

The insoles typically are the first thing that gets worn out. Insoles will eventually flatten from the weight of your body. this will then put downward pressure on your arches. Insoles get flattened from use and no longer hold your heel in the correct place. I've had tough and irritating times when my insoles got so flat that, in wet conditions, they would ...


4

An adult person burns between 100 to 150 kcal additionally per 100m elevation gained. Moreover, if you carried some common back bag you should add around 50 to 100 calories per hour. If the bag was very heavy you should add around 200 calories per hour. Of course, these are only average values - for a more exact calculation we would need the weight, age of ...


4

The other answers already gave lots of information about altitude adaption, so I will focus on one certain point: AMS (acute mountain sickness) evolves when staying at high altitudes. It is a pathologic disease with potential severe consequences. This should not be mixed up with the immediate influences of high altitude on the body like decrease of physical ...


4

Here is a clip from this webpage (http://www.sport-fitness-advisor.com/acclimatization-to-altitude.html): Preparing for Competition at Altitude How can athletes who live at sea level prepare for a competition at altitude? One approach is to compete within 24 hours of arrival at altitude. Not much acclimatization will have taken place but ...


4

This is really funny because I am from Toronto(Sea Level) and flew to Denver a couple months ago and climbed Bierstadt the morning after arriving followed by Quandary Peak the next day. Upon arriving in Denver I drove to sleep at 10,000ft then woke up early and climbed Bierstadt. Will the effects and onset of altitude sickness exacerbated by the short ...


3

The answers given already address almost all the issues well, but I'd like to add one final point which hasn't been given enough focus; ease of descent in case something goes wrong. If the OP's sister arrives, makes it up, and comes down before the AMS symptoms begin, that's great. But if something goes wrong and she's stuck at 4000+ meters, she is in some ...


2

I just got back from hiking Inyo county Bishop Ca. area call Sage flat and when coming down my outside knees began to hurt and by the time we got down it was hard to take steps. I hoped over night it would feel better so i could hike the next day, It did and we decided to take the lower trail which is flatter but again coming back i started to feel my knee ...


2

This is what I've found in the wonderful world of the internets: http://www.buildablock.com/blog/poisonous-plants-to-avoid-in-north-america Personal experience living in the USA for 22 years says that there are more issues with thorn bushes than with stinging nettles. Most poisonous plants I've run into are low to the ground. If you wear pants (and are not ...


1

I have used the listed below website for as long as they have been around. They provide very detailed and regularly updated maps from the national survey association. I recommend getting a lamination machine and printing off these maps that are along the trail just before leaving for your trip. The weight is no more than carrying the Guthook book. ...



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