Next time you have a hard drive fail, disassemble it and remove the disks. They are metal polished to a mirror finish and like a CD have a hole in their center which is great for sighting your signal target. I have disks from desktop drives (3 3/4″ diameter) and notebook drives (2 1/2″ diameter) in various kits and locations (cars, trucks, boats, etc.). A sealed sandwich bag protects the disk and allows for an instruction sheet to be kept with them.
Use a CD as a signal mirror? Maybe, maybe not. I’ve read that the light signal from plastic mirrors dissipates quickly rendering them almost useless for signaling. But a CD…I don’t know.
Geek Prepper Survival Skills when SHTF!
Next time you have a hard drive fail, disassemble it and remove the disks. They are metal polished to a mirror finish and like a CD have a hole in their center which is great for sighting your signal target. I have disks from desktop drives (3 3/4″ diameter) and notebook drives (2 1/2″ diameter) in various kits and locations (cars, trucks, boats, etc.). A sealed sandwich bag protects the disk and allows for an instruction sheet to be kept with them.
Use a CD as a signal mirror? Maybe, maybe not. I’ve read that the light signal from plastic mirrors dissipates quickly rendering them almost useless for signaling. But a CD…I don’t know.