Signalling mirror

[eastmidsprepper]

Mrs was emptying her purse last night and I spotted a super drug loyalty card which has a mirrored finish on one side ..... And there free!

[preppingsu]

Please explain how and when you might use that.
What code would you use?

[Malthouse]

Mirrors are useful for getting attention, though you could technically use Morse code it would be very hard to know that the recipient was getting every flash so really just restrict it to showing your location.

If signalling a pilot (spotter plane or rescue helicopter) be very careful not to flash him directly, (s)he will still see the light even though you are aiming for the fuselage.

To aim the reflected light hold your hand up next to the recipient, move the light from your hand to them and back again.

Plastic signal mirrors are not great, they bend and then the light gets diffused and won't travel far at all. Much better is a mirror polished piece of stainless steel.

[unsure]

i believe you can do the same with a CD , look through the hole in the middle till you find the target , be it a plane or person then you rock it slowly top to bottom .

[eastmidsprepper]

It's useful and free , not much more I can say......