Monday, August 31, 2009

Two-Step Disinfection

The lapse in blogs, and please forgive me, arose from classes starting back at Central Wyoming College where I teach. I was asked today about two-step water disinfection processes. There are several, but of specific interest this afternoon was the combo of filtering and adding chemicals. Which should you do first? No hard science tells us. Here are some thoughts: If you use your filter first, you'll remove quite a few "things," including larger germs, leaving your chemical with less demand being put on it. Speaking much more practically, it's simple to filter some water, say, out of a lake, and then add a chemical. Not so easy, it is, to collect water, add a chemical, and then, after waiting the appropriate amount of time, use a filter. But throw this into the mix: if your filter has a charcoal (carbon) stage, using the filter second will remove the unused chemical--and its taste and smell.

Sunday, August 16, 2009

How to Die

My newest book, How To Die In The Outdoors: 110 Grisly Ways to Croak, can be ordered pre-publication now at www.amazon.com. Here is an excerpt:

"One of America's greatest losses, bison (Bison bison) once flowed like a vast, hairy sea, numbering in the millions, from the Alleghenies to the Sierra Nevada, from southern Texas to the Great Slave Lake in Canada, wandering in search of grass and water. Resembling old world buffaloes, North American bison are a different species distinguished by massive, shaggy heads and shoulders and relatively small hindquarters. A mature bull may reach 6.5 feet in height and weigh in at more than a ton. Unmolested, they are a docile group, what remains of them, not given to harming humans.

Often viewed with pet-like affection by tourists to areas where they are protected, bison are sometimes pressed too closely by humans, arousing their sense of preservation, a survival instinct that has caused bison attacks in parks to outnumber bear attacks by more than four to one. Thundered into by the huge weight and muscle of a bison, you'll go somersaulting, coming to a stop battered, bruised, probably broken, and often dead. In addition, a horn or two will have gored you, in the butt if you’re running away, in the abdomen if you face the charge. Your day will really fall apart if you happen to disturb an old bull whose herd follows nervously after him. In such a case of trampling, depending on the size of the herd, what is left of you may be difficult to recognize and separate from the chips of dung that typically litter bison feeding grounds.

To Live: American bison rarely charge a human unless they approach to within 25 feet or less.

Monday, August 10, 2009

To Paste or Not

Leon Nelson, dentist and mega-avid backpacker, recently shared a few thoughts about toothbrushing, and I found them highly informative--and interesting. When thinking of your teeth, start by remembering that the source of all gum disease and tooth cavities is plague, a film of bacteria that forms on your chompers. Healthy teeth and gums require you to disorganize the plague at least once every 24 hours. To do this you do not need toothpaste--but you do need to brush, says, Leon, for at least four (4) minutes. And you do need to floss once a day. Brushing should be with a regular toothbrush, and you should clean the cheek side of your teeth for two (2) minutes and the tongue side for two (2) minutes. Flossing, continues Leon, should be up and down and not back and forth. But, hey, is it okay to use toothpaste? Sure, but leaving the paste at home you save weight, attract no bears with your minty white stuff, and the paste, according to Leon, does not make your teeth cleaner if you follow Leon's Dry Brushing Plan. He does further suggest, however, that a 30-second dry brushing now and then removes food sticking to your teeth, undoubtedly to some benefit--at least socially.

Monday, August 3, 2009

Stroke? Stick Out Your Tongue

A stumble and fall on the trail could have numerous causes including, more likely of course in older hikers, a stroke. Remember an individual can fall, rise up, seem fine (without a closer check), and collapse later. For years the first three letters of STRoke have served as a reminder of ways to check the patient for indications of stroke.
S: ask the patient to Smile.
T: ask the patient to Talk, to repeat a simple sentence such as "It's a sunny day today."
R: ask the patient to Raise both arms.
A fourth indicator of stroke should now be added to your checklist. Ask the patient to stick out his or her tongue. If the tongue goes to one side or the other, instead of straight out, if the tongue looks "crooked," you have another sign that a stroke has occurred. If any one of the four subtle indicators is present, the patient should be kept at rest and help should be summoned ASAP. The sooner the patient arrives at a hospital, the greater the chance of survival!