Originally Posted by lerman I recently saw a gadget that will track an eyeball sized retroreflector and give its position within three thousandths of an inch in a 40 foot cube. (I believe I got those numbers right.)
Do you have a few hundred thousand spare dollars in your budget?
What precision are you looking for?
Ken |
No, I don't have a few hundred thousand to spare

I have only 2K$ in the budget for that specific assignment, but I don't need to buy the device only to use it.
Where did you read about it?
It sounds interesting even if a bit unpractical