This website focuses on the Channel Tunnel (or "Chunnel") in the UK. The News sections contains press releases, images, notes to the editors, and features. ...
This website provides an interesting history of the New York Subway as well as numerous other resources on subways. The home page boasts four random subway...
This website highlights subways around the world by presenting city subway maps from Amsterdam to Zürich. The site also includes pages dedicated to indexing ...
This interesting website reviews "lost subways," including photos, articles, and other historical information. The Tower Hill Subway was England's first tube...
This website from Federal Transit Administration reviews some of the challenges involved in subway design. On this page, visitors will find the aims of the...
Part of MIT's innovative OpenCourseWare Project, that provides materials from MIT classes to the public on the web, the materials on this site are from an...
AMSER is a portal of educational resources and services built specifically for use by those in Community and Technical Colleges but free for anyone to use.
AMSER is funded by the National Science Foundation as part of the National Science Digital Library, and is being created by a team of project partners led by Internet Scout.
As a moving ball shoves air aside, it transfers kinetic energy to the air. Since acceleration = force/mass, the ball must decelerate. That means the ball can't travel as far in the limited time available before gravity pulls it back to Earth.
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