User talk:Sjlegg

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[edit] Thank You!

hey, a quick thanks for the as physics wikibook, has been a huge help to me and my classmates. we're going into the exam tomorrow (22 may). any hope of seeing the A2 content on wikibooks? i said thank you in another page, but i think it was in the wrong place and it got deleted by some tightarse moderator. thanks again, benmatthews90 —Preceding unsigned comment added by Benmatthews90 (talk • contribs) 18:35, 21 May 2008 (UTC) (Moved here from my talk page on Wikipedia)

just want to say thanks for putting up your physics textbook - it saved my life tonight!! Hope you get the A2 stuff ready for when I start it in September! :D 86.147.242.144 (talk) 18:07, 18 February 2008 (UTC)

Your physics material is layed out quite well however you need to brush up on your knowledge of resistors in parallel. I noticed on the internal resistance page the answers to questions were incorrect because you left the resistance in 1/r form and didn't flip it back so the resistance was a lot smaller than it should have been. i have corrected this.

[edit] Image:Sonar Principle EN.svg

G'day, this image on Commons has been fixed so that it doesn't render with garbled text; the German text was still there with display:none, but apparently ImageMagick doesn't honour that style directive. I haven't changed your page to use the Commons SVG, however, as I notice you have also changed a variable name in your PNG version. Webaware ^talk 11:55, 9 April 2008 (UTC)

[edit] lemon123

I'd like to echo everyone's thanks for providing such a useful resource for my A level Physics course; the Advancing Physics textbook written by IOP is rubbish (as is my teacher), so your online textbook has made my life a lot easier. I just thought I should inform you of a major mistake you made in the section on radar and triangulation: you said that, for an electromagnetic pulse being transmitted, refeleted by an objected and receieved:

whereas it actually should be:

This kind of messed up everything on radar in that section, but I've corrected it all now.

Anyway, thanks again for producing this textbook.