hand-held roller
1Roller chain — [ frame|right|Roller chain and sprocket] Roller chain or bush roller chain is the type of chain most commonly used for transmission of mechanical power on bicycles, motorcycles, and in industrial and agricultural machinery. It is simple, reliable …
2Roller derby — For the skate brand of the same name, see Roller Derby (brand). Roller derby Charm City Roller Girls (Baltimore, Maryland). Characteristics Contact Collision C …
3Inline roller skating tricks — A roller blade trick is a maneuver performed on roller blades. A general consensus of trick names exists, however, all are subjective to the individual and/or local popularity as they are all slang terms which are constantly debated over.… …
4El Toro (roller coaster) — Infobox roller coaster name=El Toro caption=El Toro, with Kingda Ka in the background location=Six Flags Great Adventure section=Plaza Del Carnaval type=Wood status=Open opened=June 11, 2006 manufacturer=Intamin AG model=Wooden Coaster… …
5Station (roller coaster) — A roller coaster s station is where the passengers board and alight from the trains. The station houses the coaster s control panel, and has devices for moving the trains in and out of the station and holding them in position, as well as devices… …
6Rock 'n' Roller Coaster — Infobox roller coaster simplified name= Rock n Roller Coaster caption= Rock n Roller Coaster logo location= Disney s Hollywood Studios, Walt Disney Studios Paris type= Steel Enclosed Launched status= Operating opened= July 29,1999 manufacturer=… …
7Wrist roller — The wrist roller (earliest referred to as York Wrist Developer) is a device designed for strengthening the wrists together in a rolling pulling motion. It consists of a bar of varying lengths, with a cord or rope attached, which the user rolls… …
8Nemesis (roller coaster) — For other uses, see Nemesis (disambiguation). Nemesis A Nemesis train travelling around the stall turn immediately after the vertical loop. Location Alton Towers …
9Tiffany glass — Girl with Cherry Blossoms illustrates many types of glass employed by Tiffany including elaborate polychrome painting of the face, drapery glass for the dress, opalescent glass for the blossoms, streaky glass in the border, fracture streamer… …
10photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
