illustration of gold-leaf electroscope, charge being introduced with a resin rod, causing foils to s - 靜電 幅插畫檔、美工圖案、卡通及圖標金箔
high-sensitivity gold-leaf electroscope, a device invented by abraham bennet in 1786 and significantly refined throughout the 19th century - 靜電 幅插畫檔、美工圖案、卡通及圖標
victorian electric machine, an electrostatic generator, vintage illustration, 19th century, victorian - 靜電 幅插畫檔、美工圖案、卡通及圖標
historical illustration of electrostatic discharge from a leyden jar in 19th century france - 靜電 幅插畫檔、美工圖案、卡通及圖標
electrostatic induction machine, victorian, vintage illustration, 19th century, 1890s - 靜電 幅插畫檔、美工圖案、卡通及圖標
historical illustration of franklin's electrostatic experiment apparatus with metallic plates and discharge setup for scientific research in the - 靜電 幅插畫檔、美工圖案、卡通及圖標
a gold-leaf electroscope is an instrument used to detect and measure electric charge - 靜電 幅插畫檔、美工圖案、卡通及圖標
history science, an electrical fright, hair standing on end, victorian 19th century vintage illustration - 靜電 幅插畫檔、美工圖案、卡通及圖標
static electricity experiment, machine, young man and woman, french, history of science 18th century - 靜電 幅插畫檔、美工圖案、卡通及圖標
nineteenth-century scientific illustration of a homemade electroscope experiment using a glass jar and a balanced needle - 靜電 幅插畫檔、美工圖案、卡通及圖標
the wimshurst machine or wimshurst influence machine is an electrostatic generator capable of generating high voltages. it was developed between 1880 and 1883 by british inventor james wimshurst, victorian, vintage illustration, 19th century, 1890s - 靜電 幅插畫檔、美工圖案、卡通及圖標
inventor with early electric head lamp, victorian, vintage illustration, 19th century, 1890s - 靜電 幅插畫檔、美工圖案、卡通及圖標
lightning rod for weather protection, 18th century scientific instrument diagram - 靜電 幅插畫檔、美工圖案、卡通及圖標
