In November 2008, the GMT's cube, polar axis and bearing mounts, declination axis and bell-shaped housing, north bearing quadrant, modern mirror cell
, and fragmented 50-inch mirror were retrieved from the incinerated building and trucked to Melbourne.
For example, Jason made Adrian's mirror cell
out of steel to the KB design.
I will have the mirrors recoated, purchase a new tube, and build a new primary mirror cell
and secondary mirror holder.
Ellison's skill as a mirror maker is undoubted, but his mirror cells
and tubes were less advanced.
You can read about his double-plate mirror cell
at his website, www.garyseronik.com.
At the back end I dispensed with a traditional Dobsonian's mirror box and simply attached the aluminum struts directly to the rear disk of the double-plate mirror cell
. The front ring, rear mirror-cell plate, and side bearings share the same 11-inch outside diameter, so I saved construction time by using just one setting on my router's circle-cutting jig.
"Its fully extended legs were just long enough for my scope's focal length, and they give the tube the collapsible trusses I wanted." At the mirror end of the scope the tripod legs bolt to a frame that holds the mirror cell
, while at the front end they attach to the metal ring of the secondary cage.
Lightweight Telescope Mirrors I'm building a 16-inch telescope and want to know if my design for the mirror cell
looks right to you.
The fact that the scope is short enough for you to look in the focuser while adjusting the collimating screws on the mirror cell
is one more benefit of the 6-inch f/5 optics.
It features over a hundred mirror cells
and interactive exhibits that bring to the fore the science and mechanics behind optical illusions, all while following a compelling storyline.
They also showed that specific subsets of mirror cells
increased their activity during the execution of an action but decreased their activity when an action was only being observed.
These neurons and another group located elsewhere in the premotor cortex have been dubbed mirror cells