"Jacob Cristoph Le Blon" returned 4 hits
1
Tables, and first world map showing lines of geomagnetism (isogons), used in work on finding longitude by means of magnetic variation. The tables give the world distribution of the variation, by latitude, along each of the meridians
Mediaitems:
Le Nautonier's geomagentic map, Modern re-creation of the magnetic equator after Le Nautonier, Le Nautonier portrait, Biographical sketch
Category:
Cartography
2
Invention of three-color printing
Mediaitems:
Le Blon biography, Origins of the art of colour reproduction, Color reproduction
Category:
Technology
3
Development of the use of polar coordinates for the representation of functions. Newton's Method of Fluxions was written about 1671, but not published until 1736. Jacob Bernoulli published a derivation of the idea in 1691 attributes the development of polar coordinates to Fontana, with no date.
Category:
Statistics & Graphics
4
First movie, with the cinématographe, using the principle of intermittent movement of film (16 fps), but producing smooth projection (first public film screening on December 28, 1895 at the Cafe Grand)
Mediaitems:
Images: Auguste et Louis Lumière, le cinématographe Lumière, Lumiere brothers portrait, Auguste and Louis Lumiere, Encyclopedia Britannica article, Lumiere Biography
Category:
Technology
