6,414 reputation
1636
bio website embedinc.com/olin
location Littleton, Massachusetts
age 58
visits member for 2 years, 5 months
seen 11 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.


Mar
18
comment How to attach signs to trees considering tree growth?
@Scott: Live trees are really the only realistic options at trail intersections. Posts cost money, need to be carried to the site, are difficult to dig holes for, and don't keep the sign high enough to be out of reach of casual vandals.
Mar
18
comment How to attach signs to trees considering tree growth?
I wish I could accept this answer too.
Mar
17
comment How to attach signs to trees considering tree growth?
Thanks. This is exactly the kind of answer I was looking for, although not the answer I wanted to hear. Can you provide a few links to the "lot of resources" you mention about fixing items to trees.
Mar
16
comment How to attach signs to trees considering tree growth?
Thanks for trying to help, but this is not what I was asking. I want the signs to move outward with the tree as it grows. The question is how to attach to allow that. If the nail is really solidly in the tree, then the growth pressure can't push it out. Not solid enough, and the sign will come off on its own from wind, freeze/thaw cycles, etc. As I said, I expect the tree to grow several inches in radius over the life of the sign. I don't want nails sticking out that far.
Mar
16
comment How to attach signs to trees considering tree growth?
Good point. I can put a backing board behind the aluminum signs. What kind of nails do you use for this case (length into tree, diameter, material)? And in case it matters, what kind of trees?
Mar
16
comment How do I find known and documented trails for trail running in New England?
@Ben: OpenStreeMap can also be wrong, especially about not telling you trails are on private property and maybe you are not supposed to be there. That said, we (the Groton MA Trails Committee) is making a concerted effort to accurately map the trails and clean up OpenStreetMap. Every time I map a new area and go to OSM, I'm always impressed by two things: How much detail there already is, but also how off some of the detail is. It will probably be a couple of years before the OSM trail data for our town is properly cleaned up.
Mar
16
comment How do I find known and documented trails for trail running in New England?
You really should fill in your location in your profile. Remeber, it's not for you, it valuable context and a courtesey to us.
Feb
13
comment How should I traverse fields with horses in?
@james: You're in one of the few places you can regularly see wild horses. I agree, wild horses are really no problem at all. They won't let you get close and they have plenty of room to move. I've never had a problem with open range cattle either, but I do know someone that was chased a short distance by a bull.
Feb
13
comment How should I traverse fields with horses in?
@Aravona: Large areas of National Forests and BLM (Bureau of Land Management) land in the western US are leased for ranching. You commonly see dried cow plops while hiking, even in fairly remote places. Encountering live cattle is much rarer, but it happens. I have personally never encountered a horse in such places that wasn't actively tended by humans at the time. Horses with riders or in a pack train are not unusual, but I've never encountered free-ranging horses, even in a large fenced area. You'll be lucky to see wild horses at all, even at a distance.
Feb
12
comment Do polarized sunglasses protect against snow blindess?
Actually highly glancing will decrease polarization relative to somewhat less glancing. There is a optimal angle of polarization. Both more perpendicular and more glancing decrease polarization from that angle. Still, your overall point is correct in that under the right circumstances, a good part of the light coming off snow in front of you can be polarized, and polarized glasses help in that case.
Feb
10
comment Cycling in Ontario — do I need to worry about permission to access logging roads?
@Russell: Your edit was too heavy-handed. Knowing that the OP is coming at the question from being used to Allemansrecht as in Sweden is useful information. My answer would have been rather different, and probably less useful, if I had not known that.
Feb
10
comment Cycling in Ontario — do I need to worry about permission to access logging roads?
For large areas like national forests or logging reserves, I'd first dig around on their web site. They may get this kind of question enough to post their policy. If not, ask them. You may also be able to find out from biking web sites or those sites where people upload their personal GPS tracks. If a lot of bikers uploaded tracks, then presumably the road is open to them. For small private parcels, there really is no easy way to know ahead of time. Try to find a local biking or hiking club and ask them.
Feb
6
comment Pitching a tent in the rain?
If the thunderstorm only lasts 15-30 minutes, just wait it out and pitch the tent afterwards.
Feb
6
comment Can bears smell food inside dry sacks?
Black bears don't attack people to get at food the people are carrying.
Jan
28
comment Are there any sunglasses with prescription insert that does not alter depth sense?
Having perspective look a little off for a while until your brain adjusts is normal for any kind of corrective lenses. You should notice the same thing with your normal glasses. Do your normal glasses and the inserts have the same subscription? If not, that's the problem.
Jan
14
comment How to stay hydrated with minimum water usage
@David: You may not live or routinely hike in a desert but lots of people do. For many, it is the common case. Also, this is rebutting the OP's friend's blanket statement of 100 ml/h being enough, which supposedly covers all cases. It only takes a single example to prove it untrue. It is irresponsible for lots of cases, and borderline at best for the right circumstances.
Jan
14
comment How to stay hydrated with minimum water usage
@gerrit: I agree there are conditions, particularly rainy and cold but above freezing like you describe, where 1 l for a 10-hour hike is certainly possible. And, if you have regular access to water, then bringing a single 1 l bottle is fine. However, I certainly wouldn't recommend that for the general case, as the OP seems to be asking about.
Jan
5
comment Where in the US can I find green mountains to hike like in Scotland, such as Dalveen Pass?
You say GB and UK are used interchaneably, which confuses me. Isn't the UK a sort of association of countries, like England, Scotland, and a few others? For example, isn't Northern Ireland part of the UK, but not on Great Britain? Doesn't UK also include a few Carribean islands, and used to include a lot more? So how do you refer to the geographic island that contains Scotland, England, and Wales, in contrast to the political entity that is the remnants of the once far-flung empire which today is largely, but not exclusively, found on the island of Great Britain?
Jan
5
comment Where in the US can I find green mountains to hike like in Scotland, such as Dalveen Pass?
Nits: You meant to say same latitude. UK is a country. The island you are referring to is Great Britain.
Jan
2
comment What are the different methods to purify water?
By the way, I wrote the firmware for the SteriPen Ultra. It has a display that counts down the seconds so you know how long to keep it sterilizing for. If I remember right, it takes 90 seconds to serilize 1 liter of water.