This is the perfect example of following the basic protocol of:JBogle wrote:And another
http://stardustathome.ssl.berkeley.edu/ ... 1&theY=369
Don't mean to be a bother but some of these are just like "really?!"
1. Zoom into the slide (i.e., focus down) until the surface features on the aerogel are in focus (or as good as you can get them). Now you know you are on the surface and zooming/focusing any further UP is of no use.
2. Zoom closer (i.e. continue to focus down) until you see a track. Note: some tracks start right at the surface!
3. Zoom closer still to determine the deepest part of that track you can get into focus (or see).
4. Click there!