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The Oregon Vortex is a roadside attraction in Gold Hill, Oregon, notable for its presumed paranormal properties, which are caused by a fascinating and convincing optical illusion of the gravity hill type. A roadside attraction is a feature along the side of a road, that is frequently advertised with billboards to attract tourists. ...
Gold Hill is a city located in Jackson County, Oregon. ...
Anomalous phenomena are phenomena which are observed and for which there are no suitable explanations in the context of a specific body of scientific knowledge, e. ...
An optical illusion is a type of illusion characterized by visually perceived images that are deceptive or misleading [1]. Information gathered by the eye is interpreted by the brain to give the perception that something is present when it is not. ...
A gravity hill (also known as a gravity road) is a place where the layout of the surrounding land produces the optical illusion that a very slight downhill slope is in fact an uphill slope. ...
It is said that a gold assay office built there in 1890 slid from its foundation, coming to rest at an odd angle. (This claim is readily disputed, because the boards have been cut at odd angles unnatural for a normal house construction.) Visitors to the structure subconsciously assume that its walls are vertical and its floor level, since those rules apply to every other building they have visited. This erroneous assumption provides the illusion of a localized gravity anomaly, as objects seem to roll uphill or balance at odd angles. The same phenomenon is demonstrated in Pennsylvania's Laurel Caverns. General Name, Symbol, Number gold, Au, 79 Chemical series transition metals Group, Period, Block 11, 6, d Appearance metallic yellow Atomic mass 196. ...
1890 was a common year starting on Wednesday (see link for calendar). ...
Gravity is the force of attraction between massive particles. ...
State nickname: The Keystone State Official languages None Capital Harrisburg Largest city Philadelphia Governor Ed Rendell (D) Senators Arlen Specter (R) Rick Santorum (R) Area - Total - % water Ranked 33rd 119,283 km² 2. ...
Laurel Caverns, formerly known as Dulaneys Cave and Laurel Hill Cave, is the largest cave in Pennsylvania. ...
Many of the "paranormal events" based on visual information are well known optical illusions. The most famous illusion involves two people changing in relative heights depending on where they stand. This effect is due to a distorted background which results in a forced perspective. It can be replicated with an Ames room. Forced perspective is a filmmaking technique employing to make larger objects appear smaller to the viewer or vice versa, depending on their relationship to the camera and each other. ...
An Ames room is a distorted room that is used to create an optical illusion. ...
Many believers claim that the site is truly paranormal. Some people find relief for back pain at the Vortex; others become dizzy. It is said to be at the intersection of ley lines, at the boundary of geomagnetic fields, and in an actual gravity anomaly. The effects are said to be strongest when the moon is full. Ley lines are alignments of a number of places of geographical interest, such as ancient megaliths. ...
The cause of Earths magnetic field (the surface magnetic field) is not known for certain, but is possibly explained by dynamo theory. ...
The Galileo spacecraft took this composite image on 7 December 1992 on its way to explore the Jupiter system in 1995-97. ...
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