Figure 5.

(a) Spore jump in a wind tunnel (superposition of images at 0.4 ms intervals). The wind speed far away from the ground is 4.85 m s⁻¹, corresponding to a ‘gentle breeze’ of Beaufort number 3. The scale bar is 500 µm. (b) An elater was set into vibration using a tungsten tip mounted on a micrometric translation stage. High-speed recordings of the vibration at 121 000 images s⁻¹ were performed. The camera was recording a line of pixels (dotted line). Scale bar, 50 µm. (c) A spatio-temporal diagram showing six periods of oscillations is plotted.