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• Aluminium
  ...[[aircraft]] and [[rocket]]s as a result of their high strength-to-weight ratio. Aluminium readily forms alloys with many elements such as [[copper]], [[zi ...nium is used extensively in many places due to its high strength to weight ratio. However, a designer used to working with steel will find aluminium less we
  35 KB (5,288 words) - 22:04, 13 July 2007
• Automobile safety
  ...o be significantly more or less risky than white. At dawn or dusk the risk ratio for black cars jumped to 47% more likely than white, and that for silver ca
  22 KB (3,293 words) - 22:58, 15 November 2009
• Economy
  ...bout 2002, but is raising again because of slow growth. The deficit-to-GDP ratio is likely going to be higher than the EU limit of 3.0% in [[2005]], and est
  15 KB (2,062 words) - 12:58, 18 September 2009
• Bicycle
  ...er a narrow range of ''[[Cadence (cycling)|cadences]]'', a variable [[gear ratio]] is needed to maintain an optimum pedaling speed while covering varied ter ...ism the mechanical efficiency will be between 82% and 92% depending on the ratio selected. Which ratios are ''best'' and ''worst'' depends on the specific m
  53 KB (8,173 words) - 09:32, 25 September 2009

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