Inge, if my understanding is correct, ozone protects us from ultraviolet radiation, not cosmic radiation. The Earth's magnetic field deflects cosmic radiation from regions where people live.

Incidentally, not long ago I read something about cosmic rays and their energies. I do not know what statistical distribution their energies follow, but one detected particle, an extreme case, had as much energy as a tennis ball as served.

Louis Hart

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Hernefjord Ingemar
Sent: Monday, February 02, 2009 3:23 AM
To: [log in to unmask]
Subject: Re: [TN] Vapor Phase Soldering

sorry, I hit the 'send' before I was ready. Furthermore, I'm fascinated by all the matters about the atmosphere. Obviously, our existence is much dependent of what happens up there. However, I don't use to accept everything without a little sceptical reflexion, and so is the  case even here, namely, the famous ozone layer. All this investigation and writing and fear...are we sure about the role ozone plays, I mean, is the thickness, variation and existence of the ozone layer really that critical? Ozone alone can't be the only catcher of cosmic radiation, can it? How can this tiny layer of O3 molecules retard or even stop the enormous velocity of those space particles? Well, you can see how ignorant I am. But as such, I also am willing to learn.
Thank you for taking you precious time to give answer.

Inge

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------