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Comments:
<0> http://www.washingtonpost.com/wp-dyn/content/article/2006/12/29/AR2006122900398.html
<1> hi there!
<2> hello
<1> well I've got a litte question.. Cs-137 goes over in Ba-137 .. I've got 3 sources here, one says only beta-ray, the other says beta and gamma ray and the the third means beta, gamma and x-ray.. I think that beta + gamma is the correct version but is it really? do you know a source I may trust (the 3 were: roempp lexikon - WHO report on some radionucleids - wikipedia)
<0> Graf_Ithaka, interesting conundrum. I don't know but perhaps they are all sort of right if perhaps some of them are rarer than the others and not always included
<1> DanF_DrC: In a matter of fact there's a lot of beta-ray and just a little bit of gamma and even fewer of x-ray.. The WHO has reported very detailed about Cs-137.
<0> ok :)
<1> even if its a publication of 1983
<3> I am looking for a program with which I can capture the coordinates of a movement I recorded in a video.
<0> hi agai
<0> doh never mind
<0> berzoid, interesting problem. don't know a specific one but should be something like that somewhere
<3> used a program in cl*** to track the movement of a crash test dummt's head
<3> had to click the dot on his head, got registered as a coordinate in time and space and then do the same for the next frame, and so on
<0> I see
<3> getting a nice table with the time, x-coordinate and y-coordinate in the end
<0> what are you tracking?
<3> a bottle
<0> odd :)
<3> we have to do some kind of experiment to prove the law we found
<0> what law would that be?
<3> don't know how you call the in english, being a 17 year old Belgian
<0> impressive experiment at your age
<3> the trajectory of launched objects
<0> ok
<3> so now I have a video of a bottle beeing launched at an angle but I don't have any data I can work with
<0> how many frames? too much to do manually again?
<3> not really
<3> a 3 second clip
<0> you can list lens barrel distortion as an error source. also perspective
<0> if not compensated for
<0> since you only have 75 or so frames I think the smartest is to do it manually
<3> any idea about an application?
<0> also the frame rate of the camera may not be 100% reliable although it might be very good
<3> looking for an application allowing me to watch the movie frame per frame and giving me the coordinates of a point, I could then type those in my calculator, make graphs and other neat stuff
<0> manual? photoshop has an info window which tells you which pixel you are pointing at
<0> x,y
<3> found a screenshot of the program, don't know if you can access it though
<3> http://olve.smartschool.be/index.php?module=Documents&file=download&htm=0&courseID=270&docID=2588
<0> no, doesn't look like it
<3> -looks how to DCC files in GAIM irc-
<3> this should work
<3> ofcourse the teacher was kind enough to crop the screenshot so I can't see the name of the application
<4> ***ume f differentiable in the point x, c \in Re. Prove the function c*f differentiable in x and that (c*f)'(x) = c*f'(x)
<5> a ver si junciona...
<6> que cosa?
<5> I'm sorry, just testing /amsg command. :P
<6> haha ok
<7> bye #physics
<8> damn that was cold
<8> ;)
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