Search results
Results from the WOW.Com Content Network
The keystone effect is the apparent distortion of an image caused by projecting it onto an angled surface. It is the distortion of the image dimensions, such as making a square look like a trapezoid, the shape of an architectural keystone, hence the name of the feature.
Colorado Street Bridge, an example of a false skew arch. The strength of a regular arch (also known as a "square" or "right" arch) comes from the fact that the mass of the structure and its superincumbent load cause lines of force that are carried by the stones into the ground and the abutments without producing any tendency for the stones to slide with respect to one another.
The bridge has an unusually great skew angle of 63°, [note 2] requiring a large skew span of 42 feet (13 m) for a bridge with a relatively small clear span of only 18 feet (5.5 m). [10] As the bridge is in open countryside and the line is curved near this point, it is unclear why such a difficult and expensive bridge was chosen, rather than ...
For example, if standing at a distance so that a normal lens captures someone's face, a shot with a wide-angle lens or telephoto lens from the same distance will have exactly the same linear perspective geometry on the face, though the wide-angle lens may fit the entire body into the shot, while the telephoto lens captures only the nose.
The Skew Arch Bridge in Reading, Pennsylvania, also known as the Askew Bridge and nicknamed the Soap and Whiskey Bridge, is an historic skew arch bridge that was completed in 1857. Its design enabled it to carry two tracks of the Philadelphia and Reading Railroad (P&R) at an angle over Sixth Street in Reading, Berks County , Pennsylvania .
A system of skew coordinates is a curvilinear coordinate system where the coordinate surfaces are not orthogonal, [1] in contrast to orthogonal coordinates.. Skew coordinates tend to be more complicated to work with compared to orthogonal coordinates since the metric tensor will have nonzero off-diagonal components, preventing many simplifications in formulas for tensor algebra and tensor ...
Kai's Power Tools 6 features a lens flare effect for precisely managing the type of glow, halo, streaks, and reflection. The addition of a library of preset effects helps to overcome this by allowing the user to choose a standard effect and then interactively position the flare in the image preview.
The Yalesville Underpass is a 30-degree skew arch bridge [1] carrying the railroad over Route 150 and Route 71 in Wallingford, Connecticut.Built in 1838 for the Hartford and New Haven Railroad by William MacKenzie, it is reported to be the first skew underpass in America. [2]