5,449 reputation
1431
bio website embedinc.com/olin
location Littleton, Massachusetts
age 58
visits member for 2 years, 1 month
seen 8 hours ago

Electrical engineering consultant specializing in microcontrollers and the circuitry around them. Master of engineering in EE from Rensselaer Polytechnic Institute in 1980.

We are certified Microchip design partners, and have been in the top catagory consistantly since around 2000. Various free downloads related to developing PIC firmware and other things are available at http://www.embedinc.com/pic/dload.htm.


Apr
22
comment What should I do for a dislocated shoulder?
@Liam: We're talking about a wilderness situation, not where you can get the injured person to a medical professional in a reasonable time or without great difficulty. My left shoulder has dislocated a bunch of times, a few times in distant or difficult locations. You do need to know something about reducing a dislocated shoulder, and there are risks as I point out, but not fixing it also carries severe consequences. It would be very painful and suffer other risks to bring a person out with a dislocated shoulder, or make them wait many hours for help to come.
Apr
14
comment How much water should be carried while hiking in the desert?
Hiking around Mt Lemmon is rather different from hiking on the basin floor.
Apr
14
comment How much water should be carried while hiking in the desert?
Where exactly in the "AZ desert" are you planning on going. Some places are a lot more severe and remote than others. For example, deep in the Kofa NWR, I'd be extra careful.
Apr
10
comment What is a place in the U.S.A that is between 40-60 degrees year round and doesn't get a ton of rain?
Yes, Eureka is quite rainy, as is everyplace on the west slope of the costal range in the pacific northwest. In fact, that's where some of the highest rainfalls (and snowfalls) are recorded in the US. There is a similar but smaller region in Hawaii, which I think has the actual highest rainfal in the US if I remember right. The highest snowfall, again if I remember right, is at Paradise Ranger Station on the west slope of Mt Rainier.
Feb
21
comment What are good designs for volunteer-buildable trail bridges?
@Dopey: As you point out, making it wider would require significantly more strength of the horizontal decking, which would add significant cost. There is no point to a bridge that can support a wheelchair or stroller when the rest of the trail can't. We wouldn't use this bridge for the "accessible" trails in town, but those are seriously more expensive and require a budget all their own. The majority of trails will always be regular trails for that reason. It is simply unreasonable to make all the outdoors wheelchair-accessible.
Feb
13
comment Hemp socks and wicking properties
Note that hemp is illegal in some jurisdictions.
Feb
12
comment What are good designs for volunteer-buildable trail bridges?
@ppl: If something added cost so that it is 1/3 the final cost, then it added 50% to the original cost. It's two ways of saying the same thing.
Feb
6
comment What is the longest time you can go, eating only freeze-dried food?
A normal fit person can go without any food for longer than two weeks, so clearly the two week limit on freeze-dried food is bogus, unless you think eating freeze-dried food is actually worse than no food at all. Take a look at how long people on hunger strikes have lasted. The answer is much longer than two weeks.
Dec
31
comment Flashlight or headlamp for night hiking?
If your headlamp is shining on the top rim of your glasses, then you have a poorly designed headlamp. I arranged the LEDs on my hat carefully so that none of the light gets into my eyes or on my glasses, but the hat rim causes no shadow within the normal field of vision. Having the light forward, like on the hat brim, helps with this. As for a flashlight as a club, the extremely slight advantage is far outweighed by having to carry a large and heavy club. In all the time hiking in my whole life, I've never encountered a situation where a club for defense would have been useful.
Dec
31
comment Climbing volcanic mountains
Avoid stepping on the glowing gooy stuff.
Dec
31
comment Flashlight or headlamp for night hiking?
I don't get the part about the brightness of a headlamp effecting your vision. The light from the headlamp shouldn't be shining into your eyes or onto your glasses, and yes, I do wear glasses. If it's foggy, then having a light not near your eyes, like a flashlight, is useful. But in normal conditions I don't see the issues.
Dec
23
comment Walking through a Thigh-high snow
Thigh-high snow and 30 degree slope sounds like a dangerous combination. You're just asking for avalanche trouble. Then the 20,000 foot altitude will make rescue much less likely.
Dec
11
comment What kind of mementos, if any, am I allowed to collect from State and National parks in small quantities?
Actually you can sometimes take rocks. For example, there is a specific rock you are allowed to collect above Diamond Rim in the Tonto National Forest of AZ. There are limits on the number or weight and possibly time of year, but it is specifically legal within the stated limits. Good point about archeological sites. Disturbing those, let alone taking anything, is a serious federal offense in most cases.
Dec
3
comment When to perform a filtering of the water?
A bandanna may filter some bulk crud, but does little to get rid of the stuff that is really dangerous. Bacteria and virus are too small for a bandanna to catch. It might catch some parasites, but I wouldn't count on it.
Nov
25
comment How can I boost morale on long backpacking trips?
I've told people of my experience trudging thru the snow in street shoes uphill both ways, but they don't seem to believe me.
Nov
25
comment How can I boost morale on long backpacking trips?
Tell them to have fun or else you'll make them trudge another 5 miles in the rain to arrive at camp after dark. If that doesn't work, send them to scout ahead left at the next intersection while you quickly take the correct path to the right. Then there are other options envolving mine shafts and steep ravines.
Oct
5
comment Are drop bears dangerous?
I had never heard of Drop Bears before, but they sound vaguely related to the Jackalope of the southwestern US.
Sep
26
comment What alternative topographic maps exist in the USA?
Did you look around at what overlays could be enabled for the USGS maps? The one you show looks rather sparse.
Sep
26
comment How dangerous is a band of coyotes to a lone, unarmed human?
@Weda: I expect coyotes would get aggressive if cornered, especially when there are pups around. However, in all the situations I have been with coyotes, there has always been plenty of space for them to escape to. There is no upside for them if they can simply run away instead of fighting and taking a chance on getting hurt. Even what we consider relatively small injuries can be a death sentence for a wild animal that has to be able to take down prey and avoid being someone else's prey at moment's notice.
Sep
25
comment How dangerous is a band of coyotes to a lone, unarmed human?
Whoever downvoted this, it is useful to explain what exactly you think is incorrect, misleading, badly worded, etc. Silent downvotes do a disservice to this site.