tag:blogger.com,1999:blog-5834252248412211498.post7135622780475981811..comments2023-10-02T19:15:59.038+10:00Comments on BIPH3001-Frontiers in Biophysics 2010: Measuring the Molecular Velocity DistributionMitch Ghttp://www.blogger.com/profile/12435777631824415803noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5834252248412211498.post-84198941363463022662010-08-09T09:46:24.268+10:002010-08-09T09:46:24.268+10:00To even add more complexity... how thick are the b...To even add more complexity... how thick are the box walls? How many times does a particle bounce in the hole? Are the walls of the hole bore elastic?<br /><br />Do these details matter if the distribution of velocities along orthogonal directions is independent? <br /><br />How would you change the experiment to test the independence of distributions in the x,y & z directions?Seth Olsenhttps://www.blogger.com/profile/09304457461800104790noreply@blogger.comtag:blogger.com,1999:blog-5834252248412211498.post-24167553220474426382010-08-08T22:40:07.291+10:002010-08-08T22:40:07.291+10:00Today I was reading a paper that discusses spectro...Today I was reading a paper that discusses spectroscopy experiments and it got me thinking that I tended to view instruments as a black box without physical reality and associated errors. The issues you raise would add to the error or uncertainty of the measurements - such as molecules lost to vacuum and molecules trapped between the two rotating wheels. If you can quantify and account for the error there is no problem with this. If the gas is kept at a low enough concentration(pressure?) this should help eliminate some of the error as it would minimise unwanted interactions.Calvin Lowehttps://www.blogger.com/profile/08534804973494602576noreply@blogger.com