Re: pinhole sunburns

From: Paul Doherty (pauld@exploratorium.edu)
Date: Fri Jul 12 2002 - 14:34:53 PDT

• Next message: Gilles Poitras: "- Learning Studio - week of July7"
• Previous message: emuller@exploratorium.edu: "Hello Pinhole"
• In reply to: SKIRBY@aol.com: "sunburns"

Message-Id: <l03110705b954fbb1a186@[192.174.3.125]>
Date: Fri, 12 Jul 2002 14:34:53 -0700
From: Paul Doherty <pauld@exploratorium.edu>
Subject: Re: pinhole sunburns

Hi Sharon

While windows do reduce the amount of UV they do not block the entire
spectrum of UV. So a good fraction of the UVA radiation still comes through
the glass.

Thus with enough exposure you can still tan or burn through a car window.

Paul D

>I have always taught that you cannot get a sunburn in a car through a
>closed window. This summer while out west ( Utah, CO, NM) I got a burn
>and the windows were up. It was on my left arm and I was the driver.
>What gives?
>Thanks,
>Sharon Kirby
>PS I really missed the TI this summer. I hope everyone is having a
>wonderful time.
>
>---------------------------------------------------------------------------
>
>To unsubscribe from pinhole, send an email to requests@exploratorium.edu
>with the words 'unsubscribe pinhole' (without the quotes) in the SUBJECT
>of the email.
>
>To subscribe to the digest and only get 1 combined message a day, send an
>email to requests@exploratorium.edu with the words 'subscribe digest
>pinhole' (without the quotes) in the SUBJECT of the email.
>
>Check out what your colleagues have written on Pinhole in the Pinhole
>archives at: http://saturn.exploratorium.edu/ti/alumni/pinhole.html
>---------------------------------------------------------------------------

• Next message: Gilles Poitras: "- Learning Studio - week of July7"
• Previous message: emuller@exploratorium.edu: "Hello Pinhole"
• In reply to: SKIRBY@aol.com: "sunburns"

This archive was generated by hypermail 2.1.3 : Mon Aug 05 2002 - 09:21:43 PDT