New Google Group set up: https://groups.google.com/forum/#!forum/sewtha-second-editio... The welcome message is: -- This is a Google Group for discussions about updating David MacKay's "Sustainable Energy – without the…
New Google Group set up: https://groups.google.com/forum/#!forum/sewtha-second-editio... The welcome message is: -- This is a Google Group for discussions about updating David MacKay's "Sustainable Energy – without the…