fluid dynamics

  • This Ultra-Light Glider Flies on Wings Made of Liquid Water

    This Ultra-Light Glider Flies on Wings Made of Liquid Water

    As a general rule, if you want to make a vehicle more fuel-efficient, you do everything you can to make it lighter. For planes, that usually involves using space-age composites to build the fuselage and wings, but one YouTuber has found a very unorthodox material for a simple glider’s wings: soap and water.


  • The Mystery About The ‘Coffee Ring Effect’ Continues

    The Mystery About The ‘Coffee Ring Effect’ Continues

    The “coffee ring effect” is that pattern you get when a single liquid evaporates and leaves behind a ring of previously dissolved solids. In the case of coffee, that would be the coffee grounds. A new paper in Physical Review E. demonstrates that we still have a lot to learn about this seemingly simple everyday…