You are correct Trev, I should have typed laser, as for the mass of the marble block, my comment was only a suggestion, I have finished with this part of the experiment and am moving on to the next phase.
On Thursday, May 15, 2014 7:56:05 AM UTC+1, Trev wrote: > > You mean Laser, John? I'm a bit out of touch with new products so have to > ask.. > Also if you need more stability or sensitivity, why not increase the > marble block anyway- it's not mega costly? > Interesting to see the device, anyway. > > On Wednesday, 14 May 2014 17:05:49 UTC+1, John Dawes wrote: >> >> >> >> I have attached here a photo of the device used to make recordings of the >> Hum. >> >> The light source is a small Lazar and the cell is a photo resister. >> >> >> -- You received this message because you are subscribed to the Google Groups "Hum Sufferers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/hum-sufferers. For more options, visit https://groups.google.com/d/optout.
