Aerospace engineering blog by Rainer Groh is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
This license means you can use the content however you see fit, as long as you’re not profiting from it commercially, and as long as you link back to this site or mention my name. However, I would appreciate if you asked permission before republishing essays on external sites.
With regard to the images on this site some of them are my own work and others are taken from third party work. I try to cite sources whenever required, i.e. images are not CC-BY-NC. If I have misused your content or broken any licences, please get in touch and I’ll try to rectify it ASAP.
My own diagrams and downloadable content are available under the CC-BY-NC license.