There are plenty of hydrophobic coatings out there, but scientists have now etched tiny nanostructures onto the surface of metal to make it water-repellant for the first time.
We could watch these little water droplets bounce all day. Totally mesmerising.
Video produced in partnership with Futurism.
This is huge for those with PTSD.
"The increase in risk is striking."
This list might be easier said than done.
Some people are not happy.
Walk this way.
Just keep moving.