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Gravity Hill – A hill that gives the illusion of objects rolling uphill
A gravity hill, also known as a magnetic hill (and sometimes a mystery hill or a gravity road), is a place where the layout of the surrounding land produces the optical illusion that a very slight downhill slope appears to be an uphill slope. Thus, a car left out of gear will appear to be rolling uphill. There are hundreds of gravity hill locations around the world. The slope of gravity hills is an optical illusion, although tour guides may claim natural or even supernatural forces are at work. The most important factor contributing to the illusion is a completely or mostly obstructed horizon; without a horizon, judging the slope…
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A Prestigious San Francisco-usa-luxury 4 Condominium Building on “the Square” Atop World Famous Nob Hill is for Sale
San Francisco, CA February 2, 2009 –In these uncertain economic times, there is still gold to be found in “them thar hills”. In this case the ”Hill” is Nob Hill-and the “gold” just might be 1130 Sacramento Street, the only four condominium, ultra-luxury building on “the square,” atop world famous Nob Hill in San Francisco, California. The property is being featured on the authority luxury real estate website www.Luxuryproperty.com which features unique luxury homes worldwide. These extra-ordinary manors of Nob Hill were built by19th century “Robber Barons,” Huntington, Crocker, Stanford and Mark Hopkins. One of the few recent additions is the 1130 Sacramento Street building which was built in 1993,…