Healing Earth is an excellent book for older students and adults who are interested in learning more about eco-machines as well as the work of John Todd. Reading it was what inspired me to write The Story of Eco-Machines.
The following link takes you to an overview of Clatsop Community College's Living Machine, its components, and how it works. For tours, which can occur year-round by appointment, please contact Toni Middleton, 503-325-7962 or at email@example.com. https://www.clatsopcc.edu/wp-content/uploads/2019/05/Living_Machine_Tour.pdf
Use this link for a tour of “The Cape Cod Ark” by former New Alchemy staff members, Earle Barnhart & Hilda Maingay. Earle and Hilda currently live in and operate the "Ark". https://youtu.be/XQKFL-9PJ1A. Earle is the director of The Green Center which continues the work and research of The New Alchemy Institute and develop videos to illustrate their work. https://newalchemists.net/