20 x 20 x 50 cm: glass, iron, aluminium, ceramic.
A LED torch sheds light on an incandescent light bulb
The light bulb was invented in 1802, and optimized for commercialization by Edison in 1878. The light bulb is still for sale in 2017. It is possibly the longest lasting technology in modern times
The LED was invented in the 1990ies, and gives the same amount of light as a modern light bulb, consuming about one tenth of the energy.
The distance in time between the lightbulb and the LED is about the same as that between the painting of William Turner and the photograph of Anais Tondeur, shown in the MAT.
email@example.com, via Leggiuno 32