The year 1852 in science and technology involved some significant events, listed below.
Giffard airship
Ada Lovelace shortly before her death in 1852
The year 1843 in science and technology involved some significant events, listed below.
Ada Lovelace, computing pioneer
Plaque on Broom Bridge, Cabra, Dublin commemorating where William Rowan Hamilton inscribed his formula for quaternions
Cyanotype photogram by Anna Atkins