It's a bird; it's a plane! You could use all of the following to signal them EXCEPT what?
Answer A laser pointer
While a pocket mirror, a flare, or a smartphone screen might alert a plane or ship to your location via reflection, you should never aim a laser pointer at a plane. This can blind the pilot, while a sun reflection can be seen up to ten miles away.
Last updated 4 years ago · 1.3K views · SOURCE
