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Hong Kong-based students, Sum Ming Wong and Kin Pong Li designed a door handle that uses light to always keep itself sterilized. The students were inspired by the SARS outbreak in the 2000s and figured that a self-sanitizing door handle is more effective than the chemical-based cleaning processes we are using right now. The handle is made of a glass tube with aluminum caps at each end and the entire handle is covered in a powdered photocatalytic coating made from a mineral called titanium dioxide. The bacteria is decomposed through a chemical reaction that is activated by UV light reacting with the thin coating on the glass tube.

E1rrw TIL the 2000 yr old Syrian soap industry finally returned to Aleppo. Their laurel soap is the oldest soap in the world.
GAN15 TIL there are 5 Chili's restaurants in Chile.
wLrwo TIL that in 2019, a mammoth tusk hunter found a perfectly preserved 32,000 year-old wolf head
N77BE TIL the longest running operation in the US Air Force is Operation Christmas Drop, which is a training mission where toys and treats are airdropped into Micronesia.
w4EP TIL in Hamburg, Germany, there is a Food Additives Museum dedicated to the emulsifiers, stabilizers, dyes, thickeners, preservatives, and flavorings in our everyday foods. The exhibits explains the history and current landscape of food additives in an informational rather than political way.