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Or they will decide that the lockdown or other measures are no longer needed. (And if protective measures are terminated it will most likely explode again...) The ~2 week delay between exposure and hospitalization also makes it hard for many to connect actions and consequences. (The...

These data (and a lot more) for MA can be found at https://www.mass.gov/info-details/covid-19-response-reporting. Click on the "COVID-19 Dashboard" for today's date. It is updated daily. I haven't checked, but hopefully other states are also publishing similar data. (I've been tracking the...

I'm sure the wind is a factor. When I am near someone outside, I position myself so the wind is blowing at a right angle to the line between us so that our exhalation plumes blow away from both of us. (In other words, avoid being downwind of anyone else.) If you can feel the air blast coming...

Also in the senior group--tried that and I had to wait in a 40 minute line at my favorite supermarket. On the way home (~8am by now) I scouted out a different supermarket and found no line. Maybe I just need to frequent less popular supermarkets... Doug

A hockey mask probably is probably more effective at scaring other people than at filtering out the virus. On the other hand, enough people around here are sufficiently familiar with hockey masks that it might not work... Ski goggles are in demand by medical personnel so I guess they are...

I would expect that the number of troublemakers that you will meet is approximately proportional to time spent in the store times the number of customers in the store so 9x10min or 1x90min would probably have similar risks. (I aim for times with fewer people in the store if possible.) And one...

I can think of logic chains that point either way, but I don't have the knowledge or evidence to favor either. (While my reading on the topic may be more technical than that of most (non-medical) people, I have only have a layman's knowledge of the transmissibility of corona viruses and even...

Since it takes ~2 weeks on the average between infection and diagnosis and the virus can be spread by asymptomatic and pre-symptomatic* individuals this is not a guarantee that Lewis County is free of infected individuals. Particularly since surrounding counties have cases. * Average time from...

Many GPSes have an option for "shortest route" or "fastest route". Fastest route tends to choose highways, shortest route often chooses dirt roads, cow paths, etc. I also check my GPS routes before driving them... Doug

I expect that they did understand this--estimating forces on the gear is an important part of leading. As is dealing with trade-offs from different sources of risk. While the reports suggest that the cause of the accident was rapelling off the end of the rope, it may be worth noting that the...

Lowering a climber or catching a falling climber from a bottom belay have the same ratios of forces: Both the belayer and the climber are pulling down on the top anchor so the sum of the forces is greater than the climber's weight (or impact force if catching a fall). In a frictionless system...

Sometimes it's not that simple--one may not have enough gear to leave backups at each rapping point. Doug

Use a tripod and manual control for everything (focus, aperture, and exposure time)--the automation will not work in the dark. For terrestrial night photography, just use the above and: * shoot a range of exposures * shoot RAW for the greater dynamic range * be very careful to minimize...

I use lightweight windblocking fleece gloves (with leather-like gripping surfaces) to handle the camera in the cold. The dexterity is good and my hands stay warm enough. I just put the lenscap in a pocket. Be careful not to exhale on the camera. Also just holding it up to your eye can fog...

I've used a DSLR for astrophotography (AP) where one leaves the camera outside all night, so far down to 4F and have had no problems. By then end of the night all sky-facing surfaces can be covered with dew or frost--the key is to keep the moisture out of the system. For AP, I use a rain cover...

Having dropped a battery or two in the snow while changing them in the dark, I decided to carry at least 2 headlamps. If the first runs out of juice, I have the option of switching to the second or using light from the second to change the batteries in the first. All of my lights (and GPSes)...

The advice in this thread is still basically sound. A smart charger that charges the cells individually at a moderate rate is best for the cells. (Low charging rates may seem to be gentler but are not best for the cells. Too high a charging rate will overheat them.) FWIW, I have...

An all too common story: Lost the trail on the descent, no lights map or compass, called for help ~6pm. Found and escorted down. https://www.sun-sentinel.com/sns-bc-nh--hikers-rescued-20191027-story.html Doug

Interesting. There are some simpler (and probably less accurate) estimators in the 3rd edition of Freedom of the Hills (1974). It would be more accurate to break the hike into uniform-condition segments and add the expenditures of the segments rather than just looking the endpoints of large...

One can often find copies of old websites (including Mohammed's site) at the Internet Archive: https://archive.org/ Doug