An astronomical calculator fit for a queen
Marconi's Marvelous Machine
A Magnificent Microscope owned by King George III (1738-1820)
Alice’s adventures through the camera lens
Many faces, one object
A curious specimen from Tradescant’s Ark
Steam and Sextants
Crystals and X-rays
Is it a star? Is it a comet?
Just a pile of cogs, or a proto-computer?