See the smallest boat in the world, it is even thinner than a human hair
Researchers from Leiden University have just presented their work, which is probably the smallest boat in the world. The model, which measures just 30 microns in length, was 3D printed as part of a project to create micro-floats with very complex shapes. To take pictures of it, you had to use a scanning electron microscope, i.e. one used to observe and characterize organic and inorganic materials on a nanometric to micrometric scale.