Frox333 t1_jdvuwiq wrote on March 27, 2023 at 4:02 PM Reply to 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 In addition, stop signs are octagons that are colored red Permalink 9
Frox333 t1_jdvuwiq wrote
Reply to 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
In addition, stop signs are octagons that are colored red