Hot answers tagged

15

As a beginning skier you will probably be falling down a lot. This means that you are likely to end up covered in snow even if the weather is nice. If you are wearing a soft shell, the snow melting from your body heat is more likely to penetrate the shell and make you cold and uncomfortable. Depending on the local climate, you may also have to worry about ...


14

As skin cancer is such a major issue in Australia, there is a huge range of products that shield the nose. From the Australian Cancer Council, see this one which clips onto your sunglasses as an example.


13

Zinc Oxide Paste Surfers use zinc oxide for the most burnable areas of the face, and it might work for you too. It's an opaque white paste that totally blocks harmful UV. It's not greasy like sunscreen, and it won't run when you sweat. A little dab on your exposed areas should keep them safe.


10

tl;dr I don't think you need spent big money on a new jacket just to go skiing if you have a serviceable soft shell. You can wear anything you want. I know when the ski season is coming to a close some people go skiing in little more than bathing suits on warmer days, and there are competitions where people try to cross/jump over pools of ice water. I skied ...


10

I'm going to assume that you are employing the SODIS method of water sterilization. To sum up the details of the process, this method is where you fill plastic pop bottles, (PET), up with rather clear water 3/4 full, shake them up, and let them sit in the bright sun for 5+ hours. The mechanism this works by is by utilizing the UV radiation in sunlight. ...


9

Ski goggles. They're made for just that - blocking UV - and allow you to wear prescription glasses underneath. Did just this on several summer cycling and kayak trips. All day in full sun ones, including pulling into Forks, WA at 95F on the city thermometer after an 80k ride. With glasses. Whatever unpleasantness was going on, the goggles weren't a big ...


7

Some face shields also include nose protection, e.g. (mirror): Another option is using a UV face shield visor, e.g. (mirror): Good feedback on it in the comment section: That fancy visor doesn't seem to be practical in a mild windy outdoor environment. – Pere 2 hours ago Ben Crowell claims most of us don't want to look that silly with a nose guard but I ...


7

If you neglect the influence of the terrain/buildings, the atmosphere and the height above sea level, both the time with and without sunlight is very close to 12 hours on the equator (other minor deviations may arise from the non-spheric form of the earth, non-constant rotational speed of the earth and probably some more minor influences). This is due to the ...


6

If I go skiing during sunny weather conditions, is it still recommended to use hard shells or could I get away with an insulated/soft shell jacket and pants? Yes you get away without hardshells in those conditions. Your main enemy will be relative wind speed (also because of your speed while skiing) and the cold. It can be could in sunny (dry) ...


6

You can quickly determine how much time you have until the sun goes over the horizon using your hands. Hold your hand out in front of you at arms length, parallel to the ground, palm towards you. Each hand span between the sun and where the sun sets on the horizon is approximately 1 hour. A finger span is about 15 minutes. One thing to keep in mind is that ...


6

Thinking practically, how about just putting a bandaid on there? Or buying surfer’s sunblock that really sticks for a long time.


6

This article has a list of what chemicals to avoid, why, and some good sunscreen choices. The three main points are below. Note that titanium dioxide falls under physical sunscreen but is still harmful! So saying physical is okay but chemical ones are not is FALSE. I personally have used Raw Elements and Stream2Sea before and been pretty happy with them. ...


5

Yes, mud would work to give some protection from the sun, this is in fact exactly what rhinos and hippos do to protect their sensitive skin in the African safari. If I recall correctly mud protects from the sun best while it is still wet, once it has dried it loses much of its protective quality


5

Parasols might be out of style in most countries, but they are still fairly popular in some Asian countries, where people try to get as little tan as possible. E.g. Japan and China. So I suppose they must be protecting from the sun, and possibly also from the heat. Almost all parasols I have seen were white or had other fair colors, which makes sence, since ...


5

Imagine for a minute that the Earth is perfectly spherical, that sunlight arrives "from infinity", and that any given spot is either lit or unlit. Then, at any given time, exactly half the surface is in "daytime" and the other half in "night-time". The line separating the two is a Great Circle - a circle with the same centre and radius as the solid sphere. ...


5

This did indeed happen to Robert Swan, who is the first man in history to walk to both the South and North Poles. His eyes turned from dark blue to light blue on his trek to the South Pole, which began in November of 1985 and ended at the Pole in January of 1986. (His trip to the North Pole was in 1989.) There are very credible sources, but the best one is ...


4

Certainly, what you are looking for is a backpacking solar stove. Here are some examples. SunFlair Solar Oven SOLTAC's CookSack Or if you really wanted to, you could attempt to build one yourself.


4

The question is really what you mean by sunny weather conditions ? Does it means the weather is hot or does it means the sun is shinning ? Because in winter, you can have a beautiful sunny sky and extremely low temperatures altogether. For instance in winter you can have 40°F in the resort and 0°F at high altitude. In my opinion the relevant question is ...


4

The OP asks: How do I attain the ultimate parasol experience? First, get a beautiful parasol, one that Madame Butterfly would be proud to carry. Second, develop your evasive techniques, raising and or tilting the parasol when you are headed for a close encounter. Third, remember that on scorching days, many people will envy you. You are a trend-setter: ...


4

This is a function of latitude and season. Apart from that, it depends on local landscape, weather, and your own eyes. On a rainy day in a dense forest, it may already be quite dark at sunset. On a clear day on a treeless plain, there's still plenty of daylight at sunset for most people, even though it's a lot darker than at midday. Civil twilight is ...


4

This could be effective. Anything opaque that blocks the sun's rays from reaching your skin will be effective at preventing sunburn, whether that's a hat, the shade of a tree, or a layer of mud smeared on your skin. Some animals, like pigs or elephants, will cover themselves in dirt or mud as a means of protecting themselves from the sun. I can't say how ...


4

As long as it still flexes you're good to go. Part of the strength of polyethylene kayaks is in their flexibility, apart from colour loss, the most significant aspect of sun damage to the plastics is that they become brittle. If pressing on the larger flatter sections causes it to flex elastically then the sun damage is not yet significant. This is more ...


3

"blinkers"/blinders (usually leather or plasic pieces that close the gaps at the side and top of sunglasses) effectively block diffuse, ambient, scattered and reflected light coming from the side (of all wavelengths). For the UV protection of the lens, check the description of the sunglass. Or measure/have measured the UV transmission spectrum. There is no ...


3

PET (Polyethylene terephthalate) bottles are not "special" containers, they are the most widespread containers holding potable water in the world, with more than 100 million used per day. Now, you don't necessarily need a bottle made of PET, but even a basic reading and understanding of how the SODIS process works should make it obvious why using anything ...


3

Protecting against UV is usually done with a covering like fur, feathers, scales, a hard shell, etc, or pigment. Our own species is a great example of the latter. It seems we emerged on the plains of central Africa where UV exposure is a serious issue. The first humans most likely had dark skin, as humans still do that stayed in that area. Those that ...


2

It seems to be that the only real requirement for solar cooking is sunshine and the more the better. There are a few disadvantage to cooking with solar energy. Disadvantages include: •weight, bulk •weather dependent •backpack versions tend to be very slow to cook (hour plus) •can't cook at night •must cook in the open away from ...


2

SPF and UPF both have very similar purposes. But the are metrics for different things - the first is for rating sunscreen creams, they latter is for apparel. The measurement method is different in both (one measures how much gets through, the other measures how much is filtered out). Sunrays have two types of UV rays (UV-A and UV-B, the former causes ...


1

I would just use a small Band-Aid. Easily removed when no longer needed.


1

It is very close to a 12 hour day of light every day in the Southern Philippines. The mountains behind were I live have some effect on shorter afternoon. & the sun rises over the S Pacific. We have about 5 months the sun is in the North side of the house. About 7 months the sun is south side. But on a boat at sea at the equator it could be done. But ...


Only top voted, non community-wiki answers of a minimum length are eligible