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Posts by uhoh‭

7 posts
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Q&A Has extended exposure to sunlight and UV in the arctic or antarctic ever caused someone's eyes to change color?

In Biology SE I have just asked Could being exposed to excess UV in the arctic lead to a human eye color change? If so, what is the mechanism? but comments there questioned weather Arctic hiker Rob...

1 answer  ·  posted 6y ago by uhoh‭  ·  last activity 6y ago by System‭

Question snow sun sunglasses
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Q&A Ways to desalinate water when "lost at sea"?

In recent news reports that all seem to be saying the same things: Jakarta Post Indonesian teenager survives 49 days adrift in Guam waters NPR: 19-Year-Old Survives 49 Days At Sea After Floating ...

4 answers  ·  posted 6y ago by uhoh‭  ·  last activity 6y ago by System‭

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Q&A Guidelines to reduce risk of exposure to, or infection from Naegleria fowleri? (brain-eating amoeba)

Deaths from the "brain eating amoeba" Naegleria fowleri are fairly rare but each is highlighted in the press, as headlines containing brain eating beget clicks. While it's not yet understood why t...

1 answer  ·  posted 6y ago by uhoh‭  ·  last activity 6y ago by System‭

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Q&A How do simple compass needles remain level instead of see-sawing with magnetic dip? Are they flat even near the poles?

This instagram post by Colin O'Brady (just hiked across Antarctica) shows his compass needle looking fairly level, but I can't see enough else to know if he's holding it level. A significant fract...

1 answer  ·  posted 6y ago by uhoh‭  ·  last activity 5y ago by System‭

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Q&A How did O&#x2019;Brady charge his electronic gear while hiking across Antarctica?

The Outside Online article How to Fuel for a Solo, Unassisted Antarctic Crossing starts with "Colin O’Brady thinks it’s possible—but just barely—to haul enough calories to traverse the continent. H...

1 answer  ·  posted 6y ago by uhoh‭  ·  last activity 6y ago by System‭

Question electronic-gear
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Q&A How to melt snow without fire or body heat?

Possibly not-crazy idea in certain cases If there is ice available somewhere, perhaps your tarp/bowl resulted in a convex lens-shaped extra bit of water, or you can (somehow) locate a frozen pond ...

posted 5y ago by uhoh‭  ·  last activity 5y ago by System‭

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Q&A Hot coffee brewing solutions for deep woods camping

Indonesian "mud" coffee works fine. If coffee beans are ground sufficiently fine, you can just put some together with near-boiling water, stir a bit, wait 3-5 minutes and all of the grounds will s...

posted 5y ago by uhoh‭

Answer