Liquid marbles Liquid marbles provide a new approach to transport liquid mass on the solid surface, which sufficiently transform the inconvenient glass containers into flexible, user-specified hydrophobic coating composed of powders of hydrophobic materials. Since then, the applications of liquid marbles in no-loss mass transport, microfluidics and microreactors have been extensively investigated. However, liquid marbles only reflect the water behavior at the solid-air interface, while there is no report on the water behavior at the liquid-liquid interface, as a result of the so-called coalescence cascade phenomenon. When a water droplet is in contact with a water reservoir, it will quickly pinch off
Jumping jack (toy) Jumping jack (toy) The jumping jack is a toy whose origins date back thousands of years. The jointed jumping jack figure is a cross between a puppet and a paper doll. The figures are generally made from wood and their limbs are jointed and tied to a pull string. When the string is pulled and released, the arms and legs move up and down. Although the jumping jack is popularly thought of as a European toy, ivory dancer figures made to spin by pulling their strings, which were found at the archaeological site El Lisht and date back to ancient