I answered a calibration movie right but was scored wrong

[DanZ]

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?!"

This is the perfect example of following the basic protocol of:

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!

[laserphil]

If you focus down fast you can see the "in focus" point of the track move from left to right so the point to click is the furthest right(even if out of focus) on JBogle's last example.
My two cents worth.

Laserphil

[DanZ]

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?!"

Please see also the helpful pointer here.

Dan