There are wonderful scientific animations on the internet but it is many a times very hard to discern if they can be used anywhere you like without copyright infringements.
ISafeHQ is a project that was started in October 2019. The aim of this project is to build a database of high quality (mainly physics) illustrations, animations and demonstrations that educators/teachers/science-communicators can use for any purpose (class, lectures, talks, etc) for free under a Creative Commons Attribution 4.0 International License (click on the link to learn more about the licence)
Please attribute this project,as :” Source: ISafeHQ on cosmicnoon.com” wherever you decide to use these illustrations

This work is licensed under a Creative Commons Attribution 4.0 International License.
Progress:
- 50 illustrations reached (images: 18 , gifs: 26 , videos: 6 ) – December 31, 2019
- 75 illustrations reached (images: 26 , gifs: 40 , videos: 9) – January 18, 2020
- 100 illustrations reached (images: 32 , gifs: 55 , videos: 13) – April 10,2020
- 125 illustrations reached (images: 42 , gifs: 59 , videos: 24) – May 22,2020
Goal : 125 illustrations by June 2020 (Current progress – 129(images: 44 , gifs: 60 , videos: 25).
[update: October 2022] : Several of the following gifs have been released in video format on YouTube under the same Creative Commons Attribution 4.0 International License. You can find them here.
Contributors :
Keerthi Vasan GC
Guram Mikaberidze
. In all of the following images and gifs, the object is placed between two polarizers. One is placed on the camera and the other is placed on the source of light. Don’t find what you are looking for? Check out other similar Creative commons projects:Astronomy:
Electricity and Magnetism:
Optics: Reflection, Total Internal Reflection and scattering
Total Internal ReflectionOptics + Thermodynamics: Heat haze
Optics: Lenses
Optics: Mirrors
Optics: Diffraction and Interference
The “X” shaped diffraction pattern is expected from a spring since when we look at a spring headon looks like:
\
/
\
/
\
/
And each of the ‘/’ and ‘\’ contribute to the final diffraction pattern.Light: Near UV spectrum
Thermodynamics: Heat and Temperature
Thermodynamics: Convection
Thermodynamics: Lighters and Fireworks
Fluid Dynamics:
Fluid Dynamics: Instabilities
Fluid Dynamics: Pilot wave hydrodynamics
Quantum Mechanics:
Random Engineering:
Sound:
Special Topics : Plasma globe
Special Topics: Photoelasticity
Vibrations and Waves: