@Nathan6692 24 February 2021 more from that month

Slippery when frozen We take care when walking on ice. Why? Well, its surface has far less friction than, say, a carpet or wooden floorboards, which is why our feet can disappear from beneath us and send us skidding if we step out on a frozen pavement on a winter’s day. You’ve probably got the hang of this part by now - but scientists still can’t come up with a conclusive answer how this happens. It’s widely accepted that the reason ice is so slippery is due to a thin film of liquid on its surface. The mystery is why this layer forms at all. For many years, it was thought this was due to external pressure (such as an ice skater moving across it) melting the top of the icy surface. However, further research suggests that an ice skater would not be able to apply the appropriate amount of pressure to do this, even if their weight was concentrated on one skate. Recent studies suggest that surface ice does not fully transform into liquid water, but instead ends up in a mixed state between ice and water. The mystery of sliding on ice could thus be attributed to the viscous (or slimy) nature of this film. It could be - but it’s by no means a fact. #info #EverythingsInfo