Free2BMe
IL PhotonicsPinholes might be small, but tiny #pinholes in your #OpticalCoating can have a huge impact on your system’s performance — causing light leakage, reducing durability, and leading to unexpected failures. An article explores the origins of pinholes, the different types that can occur, and why they’re a common challenge in optical coatings. Learn more: https://ilphotonics.com/protect-your-optical-system-from-the-hidden-threat-of-pinholes/
@dead_ball_era_baseball - Okay, to a true cartophilist what I am about to say may be deemed sacrilegious, but I love to encounter a card, like this one, with a pin hole. And I wonder long at why this card was pinned to some hidden, or not so hidden place, where it could be used as inspiration for a budding baseball player, or as a chance for a little secret swoon when a young girl`s fancy needed a gentle nudging to stay true to her heart`s desire.
