Due to spam, I have close the guestbook. Sorry.

Nice website! You rock.
Field, 2008-06-25 at 01:58:03 CET

he wanted to know how long a CD would last. so he put it on a string, outside, in the sun and in the rain. sometimes he would take it down and read it. it lasted 5 years. those German CDs---they're great! * :)
complexin, 2008-04-26 at 08:48:18 CET

I'm just having a look.. I read your website in Euler Project and I'm curious about the project members personal profile.... tschüss
DAVIDE TAGLIABUE, 2008-04-21 at 14:04:11 CET

It was fun talking to you last night.
Andrew Shell, http://blog.andrewshell.org/, 2008-02-29 at 13:53:40 CET

Thanks for your help Ilan. You saved my radiology group a lot of work. Talk to you soon. Kim:)
Kim Wyman, 2007-11-02 at 04:47:45 CET

Hi Ilan, fb page ...schade, dass Du aus W nicht qrv bist. 73´s Heiko, dl8qs
Heiko, 2007-10-12 at 07:25:19 CET

hey... nice page, i'm just a civil engineer fascinated by logical & mathematica... i would like contact you.. bye
Leandro, 2007-04-21 at 18:01:15 CET

Nice website. I love math and physics ... I'm wondering if i can contact you. Thanks.
Alejandro, http://kingmetal.blogsome.com, 2007-04-09 at 00:18:48 CET

Thank you so much for the ARU conversions. It saved my life (or at least my grade).
I., 2006-11-20 at 06:10:15 CET

I was looking for a conversion table for Atomic Rydberg Units for my project in google and stumbled into your website. I kinda panicked after not finding it in good ol' Wikipedia I reaaaaally can't thank you enough.
Aimi Abass, 2006-10-29 at 16:14:22 CET

Hey Ilan! I'm writing this with you and Mary in my room. Cool, huh? Bye.
Tim, http://nottingham.org, 2006-06-22 at 04:51:31 CET

I stumbled across your webpage while searching for fractals. Very interesting stuff! Nice job on the descriptions. I noticed you like to visit Madison, and I currently live in Madison so I wanted to sign your guestbook. :) Take Care!
Chanda Sonnleitner, Madison, WI USA, 2006-03-27 at 01:23:45 CET

It is really a cool page.
Bothina Hamad, Amman, Jordan, 2006-03-10 at 15:23:02 CET

Doing some undergrad Physics 'research' and stummbled on your site whilst looking at Fermi surfaces. Impressed that you had Elvis as a wedding guest!
geoff neilsen, SALFORD, England UK, 2006-01-26 at 14:18:28 CET

Hallo Ilan & Mary, wir waren eben auf eurer WebSite. Das habt ihr sehr schön gemacht.. bis bald mal.. schöne Grüße Rolf & Ute ( DL3BI und DL9BCQ )
Rolf & Ute, Grasberg , Germany, 2005-09-16 at 22:01:48 CET

Hello Ilan, congrats to your new guestbook! Ciao your Dad
Günter Schnell, Lilienthal, 2005-07-17 at 18:08:52 CET