helical rolling
21Gear cutting — is any number of methods used to manufacture precision gears.Gear hobbing is a method by which a special hobbing anto cutter and gear blank are rotated at the same time to transfer the profile of the hob onto the gear blank.Spur and other… …
22Hammerhead ribozyme — Taxobox | color=white name = Hammerhead Ribozyme image caption = Stylized rendering of the full length hammerhead ribozyme RNA molecule species = Catalytic RNAHammerhead RNAs are small self cleaving RNAs that have a conserved motif found in… …
23crystal — crystallike, adj. /kris tl/, n., adj., v., crystaled, crystaling or (esp. Brit.) crystalled, crystalling. n. 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallized quartz. 3. Chem., Mineral. a solid body… …
24Crystal — /kris tl/, n. 1. a city in SE Minnesota, near Minneapolis. 25,543. 2. a female given name. * * * I Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal s… …
25Folding@home — Original author(s) Vijay Pande Developer(s) Stanford University / Pande lab Initial release 2000 10 01 …
26Aerobatic maneuver — The UK Utterly Butterly display team perform an aerobatic maneuver with their Boeing Stearmans, at an air display in England. Aerobatic maneuvers are flight paths putting aircraft in unusual attitudes, in air shows, dog fights or competition… …
27List of rock instrumentals — The following is a list of rock instrumentals, including live performances and drum solos, organized by artist name. 0 9 =3= *Bramfatura =311= * Blizza * Cali Soca * Color ( Transistor ) * Dreamland ( Enlarged to Show Detail 2 ) * Old Funk *… …
28DRG Class E 18 — DB Class 118, DR Class 218 ÖBB 1018/1118 Number(s): DRG E 18 01–53 DB 118 002–055 Quantity: 55 Manufacturer: AEG, Krupp Year(s) …
29hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …
30Concert pitch — Pitch Pitch, n. 1. A throw; a toss; a cast, as of something from the hand; as, a good pitch in quoits. [1913 Webster] {Pitch and toss}, a game played by tossing up a coin, and calling Heads or tails; hence: {To play pitch and toss with… …
