TIL that the red lights on top of tall buildings in cities are called “aviation obstruction lighting,” and are used to help pilots of low-flying aircraft avoid collisions with otherwise hard-to-see structures. en.wikipedia.org Submitted by bearjew64 t3_123n88j on March 27, 2023 at 1:39 PM in todayilearned 33 comments 77
[deleted] t1_jdvdjvn wrote on March 27, 2023 at 2:04 PM Reply to comment by Matchanu in TIL that the red lights on top of tall buildings in cities are called “aviation obstruction lighting,” and are used to help pilots of low-flying aircraft avoid collisions with otherwise hard-to-see structures. by bearjew64 [deleted] Permalink Parent −6−
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