Figure 2 | Scientific Reports

Figure 2

From: Visualizing the electron’s quantization with a ruler

Figure 2

Visibly quantized steps of a levitated droplet as it gains electrons. (a) Screenshots of the droplet’s projection on the wall before and after steps a (+ 1e), b (+ 1e), c (+ 4e) and d (+ 6e). Black horizontal lines mark the displacement caused by a single electron addition and are set to the lower bright image of the droplet. The last image to the right shows a mm ruler that had been attached to the wall. (b) Real displacement of the droplet (green) calculated from the video of the displacement on the wall.

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