From Newsgroup: uk.rec.motorcycles

On 13/01/2026 00:50, geoffC wrote:

On 11/1/26 09:01, PipL wrote:

On 10/01/2026 19:30, wessie wrote:

PipL <pip@nowhere.nul> wrote in news:msfn4oFjq2kU1@mid.individual.net:

On 10/01/2026 19:05, wessie wrote:

What make of helmet are you using? I have Shoei and Nolan and I don't >>>>> have any problem with dark contrast when using the sun visor. In
fact, it has to be pretty gloomy for me to raise the sun visor.

It's a Neotec ... 2, I think. I'm also not a huge fan of sunglasses,
prefer a hat with a brim.

do you wear a sombrero when skiing?

Heh, no, but that's different: it's so much brighter, there's the UV
risk and I'm not generally trying to spot people or vehicles in mixed
shadow and bright, often low, sun.

I think there is always a UV component in all sunlight.

There is, even on a cloudy day. However, at altitude the air's clearer, there's a tiny bit less for the radiation to pass through and the snow strongly reflects it, so it's much worse.

I was surprised to read recently that polycarbonate is actually a
reasonable UV blocker - doesn't have to be tinted.

You're not safe in a car either: the glass absorbs UVB but lets UVA through.

UV destroys lots of> things including eye internals (eventually).

Less so the internals - it's the cornea and, OK, the lens, that bear the
brunt of UV. Near IR reaches and even slightly penetrates the retina (in
fact, it's used in tomography scans of the retina).
--

CHUMP #1 (CHarge Up Muppet)

Pip
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From Newsgroup: uk.rec.motorcycles

PipL <pip@nowhere.nul> wrote in news:msnq16F4bqU1@mid.individual.net:

On 13/01/2026 00:50, geoffC wrote:

I think there is always a UV component in all sunlight.

There is, even on a cloudy day. However, at altitude the air's
clearer, there's a tiny bit less for the radiation to pass through and
the snow strongly reflects it, so it's much worse.

I was surprised to read recently that polycarbonate is actually a
reasonable UV blocker - doesn't have to be tinted.

You're not safe in a car either: the glass absorbs UVB but lets UVA
through.

the film layer in a laminated windscreen will block UVA so it's only the
side windows to consider
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From Newsgroup: uk.rec.motorcycles

On 13/01/2026 21:52, wessie wrote:

the film layer in a laminated windscreen will block UVA so it's only the
side windows to consider

Well, well, every day's a school day.
--

CHUMP #1 (CHarge Up Muppet)

Pip
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