these coils
1Transportation coils — The Transportation Coils series is a set of definitive stamps issued by the United States Postal Service between 1981 and 1995. Officially dubbed the Transportation Issue or Transportation Series , they have come to be called the transportation… …
2Tesla coil — at Questacon the National Science and Technology center in Canberra, Australia Uses Application in educational demonstrations, novelty lighting, as well as music Inventor …
3electric motor — motor (def. 4). [1885 90] * * * Introduction any of a class of devices that convert electrical energy to mechanical energy, usually by employing electromagnetic phenomena. Most electric motors develop their mechanical torque by the… …
4Spring (device) — Helical or coil springs designed for tension Compression sp …
5Mattress — For other uses, see Mattress (disambiguation). A pillow top queen size mattress. A mattress is a manufactured product to sleep or lie on, consisting of resilient materials and covered with an outer fabric or ticking. In the developed world it is… …
6electric generator — ▪ instrument Introduction also called dynamo, any machine that converts mechanical energy to electricity for transmission and distribution over power lines to domestic, commercial, and industrial customers. Generators also produce the… …
7Maglev — JR Maglev at Yamanashi, Japan test track in November 2005 …
8Maglev (transport) — MAGLEV, or magnetic levitation, is a system of transportation that suspends, guides and (usually) propels vehicles, predominantly trains, using magnetic forces. This method has the potential to be faster, quieter and smoother than wheeled mass… …
9Refrigerator — Fridge and Freezer redirect here. For other uses, see Fridge (disambiguation) and Freezer (disambiguation). For other uses, see Refrigerator (disambiguation). See also: Refrigeration A side by side refrigerator …
10Cerebral aneurysm — Classification and external resources Diagram of cerebral aneurysm. ICD 10 I …
