Often times you'll run across a cache description or hint that states something like, "you're looking for a well-camouflaged blinky". Okay, fine. What does that mean? Am I looking for something that lights up, a reflector, or a traffic signal?
Well, after finding enough of these things, I finally figured out that a blinky is another name for a nano cache (I tend to be a little slow on the uptake). But I've always been bothered as to why that is. Well, I finally found a decent definition from GeoLex that satisfied my curiosity:
Blinky – Often used as another word for Nano. In reality, a “blinky” is a small light, using a button battery and micro LEDs. They are intended to be attached to clothing, or even as earrings. They come with a powerful base magnet, and a similar removable magnet, to allow it to be attached to clothing without the need of puncturing the fabric. The electronics and battery can be removed in order to create a Nano cache with a magnetic base.
Sounds like the perfect accessory from the 1980's. Glad to see they've found new life in the geocaching world.
(image courtesy of http://saminc.ca/tradingco/)