That's pretty amazing! I've always wondered if you could have a device that detects ice (using lasers, or other optical methods) and place one looking down at

That's pretty amazing! I've always wondered if you could have a device that detects ice (using lasers, or other optical methods) and place one looking down at the road in front of each tire. Your car could then warn you when it starts seeing ice, and possibly even take measures to improve control. I know a lot of times the road will be wet and it will be below freezing but there's no ice, but it's scary to drive because you know you could encounter ice at any time.