Internet-Safe Illustrations HQ(ISafeHQ)

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” wherever you decide to use these illustrations

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.


  • 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


Electricity and Magnetism:

Optics: Reflection, Total Internal Reflection and scattering

Optics + Thermodynamics: Heat haze

Optics: Lenses

Optics: Mirrors

Optics: Diffraction and Interference

Light: Near UV spectrum


Thermodynamics: Heat and Temperature

Thermodynamics: Convection

Setup for demonstrating Convection cells. Thermal camera is mounted to a smart phone and the images are captured from the top. Below are how the convection cells look like:

Thermodynamics: Lighters and Fireworks

Fluid Dynamics:

Fluid Dynamics: Instabilities

Fluid Dynamics: Pilot wave hydrodynamics

Quantum Mechanics:

Random Engineering:


Special Topics : Plasma globe

Special Topics: Photoelasticity

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.

Vibrations and Waves:

Chladni patterns of a square plate
An interesting phenomenon involving an onion peel and a milk frother.

Don’t find what you are looking for? Check out other similar Creative commons projects:

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