Uploaded December 2017 | Updated September 2026, 1 week ago
demonstrations.wolfram.com/AstronomicalClock
The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.
This Demonstration illustrates the working of an astronomical clock. To visualize the movement of the Sun and Moon on the celestial sphere, astronomical clocks use stereographic projection. The Earth's projection is at the center of the clock, surrounde...
Contributed by: Erik Mahieu
Audio created with WolframTones:
tones.wolfram.com
demonstrations.wolfram.com/AstronomicalClock
The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.
This Demonstration illustrates the working of an astronomical clock. To visualize the movement of the Sun and Moon on the celestial sphere, astronomical clocks use stereographic projection. The Earth's projection is at the center of the clock, surrounde...
Contributed by: Erik Mahieu
Audio created with WolframTones:
tones.wolfram.com
![Comparing the Cook-Torrance BRDF Model with Diffuse Reflection Simulation
http://demonstrations.wolfram.com/ComparingTheCookTorranceBRDFModelWithDiffuseReflectionSimula
The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.
As Wolfgang Pauli said, [OpenCurlyDoubleQuote]God made the bulk; the surface was invented by the devil.[CloseCurlyDoubleQuote] This Demonstration illustrates the diabolical characteristics of surfaces in the case of reflection. In this specific case, ...
Contributed by: D. Meliga, S. Z. Lavagnino and G. Valorio
Audio created with WolframTones:
http://tones.wolfram.com Comparing the Cook-Torrance BRDF Model with Diffuse Reflection Simulation](https://i.ytimg.com/vi/RY4wIrQ8Gqc/mqdefault.jpg)





![Deutschs Algorithm on a Quantum Computer
http://demonstrations.wolfram.com/DeutschsAlgorithmOnAQuantumComputer
The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.
In 1985, David Deutsch [1] proposed a highly contrived but simple algorithm to explore the potentially greater computational power of a quantum computer as compared to a classical computer. Consider four possible functions of a single-bit (or basis qubi...
Contributed by: S. M. Blinder
Audio created with WolframTones:
http://tones.wolfram.com Deutschs Algorithm on a Quantum Computer](https://i.ytimg.com/vi/TZyTdgEOtsI/mqdefault.jpg)



![Extending the Rationals with the Square Root of Five
http://demonstrations.wolfram.com/ExtendingTheRationalsWithTheSquareRootOfFive
The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.
This Demonstration shows examples of arithmetic operations in the extended field ?(SqrtBox[5]), that is, in the field of numbers a+bSqrtBox[5], where a and b are rational numbers.
Contributed by: Izidor Hafner
Audio created with WolframTones:
http://tones.wolfram.com Extending the Rationals with the Square Root of Five](https://i.ytimg.com/vi/UCQthJpINJM/mqdefault.jpg)