concrete waterproof
41Tile — For other uses, see Tile (disambiguation). Decorative tilework in Sheikh Lotf Allah Mosque, Isfahan, Iran early 17th century A tile is a manufactured piece of hard wearing material such as ceramic, stone, metal, or even glass. Tiles are generally …
42Boat building — Boat building, one of the oldest branches of engineering, is concerned with constructing the hulls of boats and, for sailboats, the masts, spars and rigging.Parts* Bow the front and generally sharp end of the hull. It is designed to reduce the… …
43Geoffrey Pyke — Geoffrey Nathaniel Pyke (9 November 1893 ndash; 22 February 1948) was an English journalist; a spy and spy master; an educationalist and later an inventor whose clever, but unorthodox, ideas could be difficult to implement. In lifestyle and… …
44Canada's Worst Driver 3 — Infobox Television show name = Canada s Worst Driver 3 caption = Canada s Worst Driver Logo format = Reality television runtime = 60 minutes creator = developer = Proper Television producer = Blair Ricard executive producer = Guy O Sullivan… …
45painting — /payn ting/, n. 1. a picture or design executed in paints. 2. the act, art, or work of a person who paints. 3. the works of art painted in a particular manner, place, or period: a book on Flemish painting. 4. an instance of covering a surface… …
46Motorcycle safety clothing — To improve motorcycle safety many countries mandate the wearing of protective clothing by motorcyclists, especially a helmet. Other protective gear may include certain types of jackets, gloves, boots, and pants. Jackets meant for motorcyclists… …
47Sea kayak — A sea kayak on Valdes Island, British Columbia, Canada. A sea kayak or touring kayak is a kayak developed for the sport of paddling on open waters of lakes, bays, and the ocean. Sea kayaks are seaworthy small boats with a covered deck and the… …
48Safe — A safe (also called strongbox, coffer or kist) is a secure lockable box used for securing valuable objects against theft or damage. A safe is usually a hollow cuboid or cylinder, with one face removable or hinged to form a door. The body and door …
49Umiak — in Barrow, Alaska The umiak, umialak, umiaq, umiac, oomiac or oomiak is a type of boat used by Eskimo people, both Yupik and Inuit, and was originally found in all coastal areas from Siberia to Greenland …
50Silicone — Not to be confused with the metalloid chemical element Silicon. Silicone caulk can be used as a basic sealant against water and air penetration. Silicones are inert, synthetic compounds with a variety of forms and uses. Typically heat resistant… …
