Look Out

Explore the changing world of optical aids from telescopes and beyond. But beware – you may have to look hard!

What has a jug with a likeness of Nelson got to do with a theodolite such as you would see a civil engineer peering into on a building site? From sextants and telescopes to binoculars, come on a trail and find out what people peer through and why.

Portable reflector telescope

This is a portable Gregorian (reflecting) telescope.


A theodolite is a surveying instrument with a telescope for measuring horizontal and vertical angles.