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"A Slower Speed of Light is a first-person game prototype in which players navigate a 3D space while picking up orbs that reduce the speed of light in increments. Custom-built, open-source relativistic graphics code allows the speed of light in the game to approach the player's own maximum walking speed. Visual effects of special relativity gradually become apparent to the player, increasing the challenge of gameplay. These effects, rendered in realtime to vertex accuracy, include the Doppler effect (red- and blue-shifting of visible light, and the shifting of infrared and ultraviolet light into the visible spectrum); the searchlight effect (increased brightness in the direction of travel); time dilation (differences in the perceived passage of time from the player and the outside world); Lorentz transformation (warping of space at near-light speeds); and the runtime effect (the ability to see objects as they were in the past, due to the travel time of light). Players can choose to share their mastery and experience of the game through Twitter. A Slower Speed of Light combines accessible gameplay and a fantasy setting with theoretical and computational physics research to deliver an engaging and pedagogically rich experience."

"There are two types of information that one normally wishes to find from a velocity versus time graph. The first and simplest objective is finding the acceleration. The second is to find a position versus time graph that produced the velocity versus time graph. "

A great game to challenge understanding of position vs time and velocity vs time plots

Strange signals picked up from black holes and distant supernovae suggest there's more to space-time than Einstein believed.

The Interactive Learning Toolkit helps you implement innovative teaching ideas, such as Peer Instruction and Just-in-Time-Teaching, and to monitor your students' learning.

"Students will utilize conservation of mass-energy to explain how the annihilating collision of a proton and an anti-proton can produce a particle with six times the mass of either."

a game that is based on time dilation and relativity

Physics experiments/activities do not have to be costly in time or resources.  Teachers also do not need to limit their equipment purchases to "high tech" or specialty materials sold exclusively through science supply catalogs.  Many valuable data collection activities can be performed using inexpensive materials that may be purchased from local department, hardware, and/or toy stores. 

free version of old-time book with activities for kids.

The Astophysics package was published in 1997. It was written primarily to support modules currently available in the A level physics syllabuses at that time. Parts of package were also relevant to astronomical topics within International Baccalaureate and GCSE courses as well as to adult and continuing education.

ingenious way to measure time of contact between tennis raquet and ball. 

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