Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
The theory of relativity predicts that apparent mass of an object depends on the reference frame. The difference between apparent mass and rest mass is negligible at speeds much less than the speed of light . The value of the relativistic mass for unit rest mass is shown on the graph with a green disk. The radius of the disk is proportional to the value of the relativistic mass and does not mean to indicate that the actual volume of the object changes.
Contributed by: Michael Schreiber (March 2011)
Open content licensed under CC BY-NC-SA
Wolfram Demonstrations Project
Published: March 7 2011