hot-air pipeline
21Technological and industrial history of Canada — The technological and industrial history of Canada encompasses the country s development in the areas of transportation, communication, energy, materials, public works, public services (health care), domestic/consumer and defense technologies.… …
22Calendar of 1998 — ▪ 1999 January January 1 At the stroke of the new year, the Russian ruble is worth a thousand times less than before as three zeros are removed from its value; about six new rubles equal one U.S. dollar. Foreign Minister David Levy… …
23Combined cycle — Thermodynamics …
24Aviation — This article is about aircraft. For the cocktail, see Aviation (cocktail) . Aviation NASA Gulfstream V C 37A …
25Engine — This article is about a machine to convert energy into useful mechanical motion. For other uses of engine, see Engine (disambiguation). For other uses of motor, see Motor (disambiguation). A V6 internal combustion engine from a Mercedes car An… …
26Dates of 2005 — ▪ 2006 January This is a unique case of a people under occupation being asked to hold free and fair elections when they themselves are not free.… It s an important internal test, and I think it s a turning point. Palestinian legislator Hanan… …
27Propane — Not to be confused with propene. Propane …
28Aircraft — An aircraft is a vehicle which is able to fly through the Earth s atmosphere or through any other atmosphere. Rocket vehicles are not aircraft if they are not supported by the surrounding air. All the human activity which surrounds aircraft is… …
29Bodyboarding — is a derivative of wave riding. The average board consists of a small, rectangular piece of hydrodynamic foam. The board can be shaped and adapted to different riding styles, and size of rider. Bodyboarding has been growing very rapidly over the… …
30List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
