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Internet Sites | ... Latitude and Longitude - A very beautiful page describing and diagraming the concepts of latitude and longitude. This would be a good place to show the bird's eye view of the latitude world to older students, especially 2nd-4th graders. ... Sunrise/Sunset Generator - A tremendous site designed for movie producers so they can schedule when to shoot scenes in various countries and cities around the world. ... The World Right Now - Live Internet-linked cameras around the world. ...

... На остальные 96% она состоит из субстанций с простыми, но звучными именами -- темная материя (23%) и темная энергия (73%). ... Затем выяснилось, что наша Галактика -- не единственная в Космосе, и даже не самая большая, а всего лишь один из многих миллиардов звездных островов, расположенный то ли на задворках крупного скопления галактик, то ли вообще за его пределами -- этакая глухая вселенская провинция, преисполненная сознания собственной важности, но безнадежно далекая от метрополии. ...

Sixty-five million years ago, about 70 percent of all species then living on Earth disappeared within a very short period. ... Paleontologists speculated and theorized for many years about what could have caused this mass extinction, known as the K-T event (Cretaceous-Tertiary Mass Extinction event). ... The Alvarez team suggested that the enhancement was the product of a huge asteroid impact. ... Sulfuric acid aerosols may have cooled Earth for years. ... Appendix C ...

... Meade Instruments Corporation . ... Choosing the Right Microscope . ... On most microscopes the specimen glass remains fixed while the microscope's objective lens and eyepiece move as a unit up or down to focus the image. ... Eyepieces of varying powers work with objective lenses of varying powers to yield a range of microscope magnifications. ... Magnification: The effective magnification of a microscope is determined by multiplying the eyepiece power by the objective lens power . ... about meade |...

Next: Advanced Architecture for the Infrared Science Archive . ... IPAC/SIRTF Science Center, California Institute of Technology, Pasadena, CA 91344 . ... The California Institute of Technology has been selected as the home for the SIRTF Science Center (SSC) . ... The Science Observations Data Base (SODB) is used at the SSC to hold all information submitted by the community, and will eventually encompass the project archival data bases as well. ...

... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...