There is an youtube video[1] by the excellent channel Huygens Optics which goes through trying to make a microscopic tesla valve. The valve does not work as a

There is an youtube video[1] by the excellent channel Huygens Optics which goes through trying to make a microscopic tesla valve. The valve does not work as a checkvalve (it is sufficiently small that surface tension and all that work differently than in a macroscopic system), but the author argues that it did satisfy the real goal of being a tesla valve -- which is to look sexy and high tech. [1]https://www.youtube.com/watch?v=gQnmP7UD_zk https://www.youtube.com/watch?v=gQnmP7UD_zk