大事記 1895年 ： 廣東 南海 舉人 康有為 等人在 北京 發起 公車上書 ，要求改革。 出生 1947 – James Dyson , English businessman, founded the Dyson Company 1952年： 杜可風 ， 香港 電影 攝影師 。 逝世 1519年 ： 李奧納多·達·文西 ， 義大利 文藝復興 時期畫家。（ 1452年 出生） Leonardo da Vinci died # onthisday in 1519. This pen and ink drawing of a horseman fighting with a dragon was made as a preparatory sketch. The horseman (minus the dragon) was used in the background of a painting at the Uffizi Gallery. Leonardo da Vinci died # onthisday in 1519. As well as producing some of the most enviably neat 'mirror writing' we've ever seen, da Vinci was a painter, sculptor, architect and engineer. Here are some pages from his notebook – see his study for an underwater breathing apparatus, examinations of reflections from concave mirrors and drawings for the design of a mechanical organ. http://bit.ly/2qsUWXd ...