WThe ACA Hurricane was an electro-mechanical and rotating-directional, 130dB civilian defense siren, created and produced by Alerting Communicators of America. ACA began manufacturing the Hurricane 130 in 1967, and ceased production in 1981. The Hurricane 130 is very similar to the Federal Signal Thunderbolt series and was also meant to compete with the Federal Signal Thunderbolt.
WThe Z-score formula for predicting bankruptcy was published in 1968 by Edward I. Altman, who was, at the time, an Assistant Professor of Finance at New York University. The formula may be used to predict the probability that a firm will go into bankruptcy within two years. Z-scores are used to predict corporate defaults and an easy-to-calculate control measure for the financial distress status of companies in academic studies. The Z-score uses multiple corporate income and balance sheet values to measure the financial health of a company.
WThe combination jersey was the jersey in the Tour de France worn by the leader of the combination classification.
WThe Easter Bilby is an Australian alternative to the Easter Bunny.
WThe Honda Z50A is a small motorcycle with a 49 cc (3.0 cu in) single-cylinder four-stroke overhead cam engine and a semi-automatic transmission. It was made by Honda from 1968-1978 and it was the second generation of the Z50 Series of minibikes. The 1968-1971 Z50As were known as the "Hard Tail" because of their lack of rear shock absorbers. 1968 was also called a K0, a 1969-1970 is called a K1 and a 1970-71 are referred to as K2s. Rear shock absorbers were added to the Z50A in 1972 and it was referred to as a K3.
WRosa 'Angel Face' is a pink floribunda rose cultivar, developed by Herbert Swim & Weeks Rose Growers, and introduced into the United States in 1968.. 'Angel Face' is a cross between floribundas, and hybrid tea, 'Sterling Silver'. The rose was named an All-America Rose Selections winner in 2002.
WRosa 'Shropshire Lass' is a tall pink shrub rose cultivar, bred by British rose breeder David C. H. Austin, and introduced into the UK by David Austin Roses Limited (UK) in 1968. 'Shropshire Lass' was one of Austin's earliest shrub roses, and a precursor to Austin's English rose collection.
WIn economic science, the tragedy of the commons is a situation in which individual users, who have open access to a resource unhampered by shared social structures or formal rules that govern access and use, act independently according to their own self-interest and, contrary to the common good of all users, cause depletion of the resource through their uncoordinated action. The concept originated in an essay written in 1833 by the British economist William Forster Lloyd, who used a hypothetical example of the effects of unregulated grazing on common land in Great Britain and Ireland. The concept became widely known as the "tragedy of the commons" over a century later after an article written by Garrett Hardin in 1968.