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What is time?

Plusmagazine interviews experts on everything from the beginning of time to time travel.

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http://plus.maths.org/content/science-fiction-science-fact-what-time-0

Subrahmanyan Chandrasekhar

Subrahmanyan Chandrasekhar (1910 - 1995) In 1930 he showed that a star of a mass greater than 1.4 times that of the Sun had to end its life by collapsing into an object of enormous density unlike any ...

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http://www-history.mcs.st-and.ac.uk/history//Biographies/Chandrasekhar.html

National Earthquake Information Centre - Near real time earthquake list

Contains information on the most recent earthquakes around the world - less than 14 hours ago. Also data - predicted p-wave times for example. An excellent site for keeping abreast of the latest ...

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http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/quakes_all.php

Time

The Official Source of Time for the Department of Defense and the Standard of Time for the United States.

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http://tycho.usno.navy.mil/time.html

A Walk Through Time

How do you measure time? A guided tour of the history of the measurement of time from ancient calendars and sun dials to modern day atomic clocks.

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Hits: 2293

http://physics.nist.gov/GenInt/Time/time.html

International Standard Date and Time Notation

An outline of ISO 8601, the internationally agreed date and time format. It specifies the numeric representation of date and time.

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Hits: 543

http://www.cl.cam.ac.uk/~mgk25/iso-time.html

Calculation of the Reverberation Time in a Room

Input variables such as dimension of room, construction materials, type of furniture etc. and Sabine Reverberation Time, Eyring Reverberation Time are calculated.

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Hits: 839

http://www.kettering.edu/~drussell/Demos/RT60/RT60.html

Displacement-Time Graph and Velocity-Time Graph

This simulation shows two graphs where the user can vary initial displacement, velocity and acceleration and see the corresponding changes to the Displacement-Time and Velocity-Time Graphs.

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Hits: 1994

http://www.msu.edu/user/brechtjo/physics/plotXV/plotXV.html

Constant Negative Velocity

Shows, by means of simple animation, the displacement time, velocity time, and acceleration time graphs for an object moving at constant negative velocity.

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Hits: 2298

http://www.physicsclassroom.com/mmedia/kinema/cnv.cfm

Constant Positive Velocity

Shows, by means of simple animation, the displacement time, velocity time, and acceleration time graphs for an object moving at constant positive velocity.

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http://www.physicsclassroom.com/mmedia/kinema/cpv.cfm
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