Tuesday, 12 January 2021


From our infinitely engrossing antiquarian, JF Ptak Science Bookstore, not only do we learn the image for demonstrating the formation and oscillation of drops is the above titled optical toy or tool “wonder turner” that gives the illusion of motion and progression (see also here and here), moreover there is accidental poetry is addressing the airy gravity of the nature of bubbles and membranes. An excerpt from an early Nature article speaks to this: “He has studied the behaviour of big bubbles and of little ones, of bubbles in large and small tubes, of bubbles of air in a liquid, and of one liquid in another, of bubbles in heavy land in light liquids, of bubbles in liquids of various degrees of viscosity and with various degrees of surface tension at the surfaces.” Much more to explore at the link up top.