Optical table

An optical table is like a big, sturdy table that scientists and engineers use to do experiments with lasers and other optical equipment. It is very important to have a stable surface to work on, to prevent vibrations and other movements that might interfere with the experiments.

The table is made out of a special material, usually a kind of granite, that is very dense and heavy, so it won't move or shake easily. It is then covered with a layer of special vibration-damping foam, which helps absorb any vibrations that might happen.

On top of the foam, there is a grid of threaded holes, which allow scientists to attach various pieces of equipment and fixtures to the table. This lets them arrange and set up their experiments in just the right way.

Overall, an optical table is a tool that allows scientists and engineers to do advanced experiments with lasers and other delicate optical equipment, by providing a sturdy and stable surface to work on.