燻紙上の液滴破裂

Abstract

(i) If we employ the smoked paper, to make a record of rain drops (experimentally: water or liquid drops), we will observe remarkable circular figures. (fig. 1, Pl. 3 fig. 1).(ii) S: soot, a: diameter, C: central spot (diameter: d), (Pl. 3 fig. 2), C': diameter of rain drops? v: volume, t: temperature, h: height of fall (experimentally). These values were measured. (fig. 2_??_fig. 7).(iii) Assuming the form of the drops is ellipsoid of revolution. (fig. 8). 2/A was calculated. (fig. 9).(iv) A few of these figures leaves a tortoise-shell pattern on the smoked paper. (fig. 11, Pl. 3 fig. 3, 4, 5).(v) a, c[=1/2(b-a)] and n (nos. of radial lines) were measured. (fig. 12_??_14).(vi) This tortoise-shell pattern is formed as shown ihfig. 17. (?). (vii) The figures on the it clined smoked paper (inclination=α) were studied. (fig. 18_??_23, Pl. 3 fig. 6, 7).(viii) θ (fig. 18, Pl. 3 fig. 7) is formed with the splashed small water drops.