World Tour- Bonn

Bonn is a 2000-year-old city that has a wealth of sites to offer tourists. The Town Hall or the Baroque Alte Rathaus, the Kreuzberg Chapel, two-storied Schwarzrheindorf Church and a large number of other churches are worth a visit. The late 19th-century streets of the old "Südstadt" with their splendid facades, the Alte Friedhof, and the Rheinaue Recreational Park are the other main tourist attractions.

Tours Cathedral

The first cathedral of Saint-Maurice was build by Lidoire, évêque de Tours from 337 to 371 preceding Martin. Burnt in 561, it was restored by Grégoire of Tours and dedicated in 590. Its location, at the south-west angle of the castrum, as well as its west orientation makes its access in bayenet from the roadway crossing the city, and originally accessed through the late-antique surrounding wall. Such a configuration is quite rare.The cathedral was then rebuild during the second quarter of the Template:XIIe century and again burnt in 1166 during the conflict engaging Louis VII of France and Henri II of England (also count of Anjou, the neighboring region).

concert tour

A concert tour is a series of concerts by a musician, musical group, or some number of either in different cities or locations. Especially in the popular music world, such tours can become large-scale enterprises that last for several months or even years, are seen by hundreds of thousands or millions of people, and bring in millions of dollars (or the equivalent) in ticket revenues. Different segments of long-lived concert tours are known as "legs". Concert tours are often administered on the local level by concert promoters or by performing arts presenters

The Cannery

The Cannery Casino, Hotel is a locals casino located in North Las Vegas, Nevada on 28 acres. It is a joint venture between Millennium Management Group and Oaktree Capital Management and it is operated by Cannery Casino Resorts. Cannery includes 65,000 ft casino, 200 room hotel, pool, Jacuzzi, 24hour room services with four restaurants and two bars. It discovers variety of shops and galleries that filled with latest in objects and fashions.

The specialty of cannery is that it is a historic building with three levels of walkways, balconies and bridges, wrap around an inviting courtyard. People can relax under 100-year-old olive trees and can enjoy alfresco snack or an elegant meal entertained along by street performers. Here, live entertainment is featured daily.

Red and White Ferry

Red and white ferry located in San Francisco is one of the leading places of attractions in San Francisco. The red and white ferry san Francisco is founded in 1892, the family owned red and white fleet is legendary for its breathtaking san Francisco cruises. it is one of the two primary fleet operators offering tours of san Francisco bay including visits to Alcatraz islands and golden gate bridge.

There are three tours offered in red and white ferry, San Francisco and people can know well about the current prices and various special of the tourist spot. The tourists enjoy the amazing sunsets and appetizers aboard while relaxing the 2-hr in California Sunset Cruise. Most of Red and White Fleet's cruises depart from Pier 43½ in the heart of Fisherman's Wharf.

Wave theory

In the 1660s, Robert Hooke published a wave theory of light. Christiaan Huygens worked out his own wave theory of light in 1678, and published it in his Treatise on light in 1690. He proposed that light was emitted in all directions as a series of waves in a medium called the Luminiferous ether. As waves are not affected by gravity, it was assumed that they slowed down upon entering a denser medium.


Thomas Young's sketch of the two-slit experiment showing the diffraction of light. Young's experiments supported the theory that light consists of waves.The wave theory predicted that light waves could interfere with each other like sound waves (as noted around 1800 by Thomas Young), and that light could be polarized. Young showed by means of a diffraction experiment that light behaved as waves. He also proposed that different colors were caused by different wavelengths of light, and explained color vision in terms of three-colored receptors in the eye.

Another supporter of the wave theory was Leonhard Euler. He argued in Nova theoria lucis et colorum (1746) that diffraction could more easily be explained by a wave theory.

Later, Augustin-Jean Fresnel independently worked out his own wave theory of light, and presented it to the Académie des Sciences in 1817. Simeon Denis Poisson added to Fresnel's mathematical work to produce a convincing argument in favour of the wave theory, helping to overturn Newton's corpuscular theory.

The weakness of the wave theory was that light waves, like sound waves, would need a medium for transmission. A hypothetical substance called the luminiferous aether was proposed, but its existence was cast into strong doubt in the late nineteenth century by the Michelson-Morley experiment.

Newton's corpuscular theory implied that light would travel faster in a denser medium, while the wave theory of Huygens and others implied the opposite. At that time, the speed of light could not be measured accurately enough to decide which theory was correct. The first to make a sufficiently accurate measurement was Léon Foucault, in 1850. His result supported the wave theory, and the classical particle theory was finally abandoned.