S21

From Wikipedia, the free encyclopedia

S21 or S-21 may be:

• S-21, la machine de mort Khmère rouge (S-21, The Khmer Rouge Killing Machine), a 2003 film by Rithy Panh
• Tuol Sleng Genocide Museum, at the site of Security Prison 21 (S-21)

S₂₁

• S-parameters S₂₁, forward transmission coefficient (gain)

transportation

• Hamburg S-Bahn S21, from Elbgaustraße to Aumühle
• San Diego County Route S21, the historic coastal highway
• Shin-Fukae Station, S21 on the Sennichimae Line (Osaka)
• Zürich S-Bahn S21, from the Zürich Main Station to Zug

vehicles and vessels

• HMS Onyx (S21)
• Brazilian submarine Tonelero (S21)