h a l f b a k e r y
Fewer ducks than estimates indicate.
add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
or get an account
Please log in.
Before you can vote, you need to register.
Please log in or create an account.
Actuators, like elevators on rails, rise the mirrors to approximate position to form a parabola. Then, precise, computer-controlled magnetic field rotates the mirror bits sitting in vacuum bubbles (like light bulbs) precisely to form a parabola. with a focal point. A strong drone with stabilizer flies
to the focal point, carrying an ocular, and a CCD camera.
A hope: 0.5 kilometer-diameter telescope.
MIT Invents A Shapeshifting Display You Can Reach Through And Touch [Inyuki, May 13 2015]
Some-one's been on the NASA website again... [neutrinos_shadow, May 13 2015]
||If the mirrors are inside evacuated glass modules, then the
light will probably be distorted passing through the glass. It
can be compensated-for, of course, at the cost of making
each mirror more complex.
||[Vernon], I was just afraid of the winds, if they were suspended in magnetic field, and that's why evacuated glass modules.
||This might makes even more sense as a space
telescope. You don't have to worry about wind in
orbit. This could make the telescope expandable by
dividing the mirrors into several launches. Also, if it
gets hit by a piece of space debris, it might only
take out a couple mirrors.
||Of course it might be a lot harder to move the
whole thing to avoid space debris.