If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. If you’ve got a car, or any vehicle really, an emergency ...

Ponder the red-backed poison frog. In nature, red can issue a warning to predators — stay away, the aposematic message reads. On the road, red can be a warning of its own, often flashing on emergency ...

Elon Musk has perpetually promised that self-driving cars are only a year away. However, today's relatively rudimentary autonomous systems are still making errors that most humans wouldn't make behind ...

Modern fire apparatus are covered with numerous flashing and blinking lights of various colors. The lights are designed to warn motorists of the need to yield the right of way when the unit is en ...

Passing your basic driving exam in the United States should, at the very least, include the knowledge that flashing emergency lights behind you mean that you should pull over. Whether you're being ...