I think most of us have heard about a few free-energy devices, invented by a handful of people. These inventions have been suppressed and kept from the market, because they rival the profits of the oil and fossil fuel giants, nuclear power industry, etc.
I was astounded to discover that, in A Practical Guide to 'Free-Energy" Devices, countless numbers of such devices have been invented. This PDF is 1731 pages long and is available for download here:
But one need only read the table of contents (pages 4 - 7) to appreciate the enormity of the free-energy technology already in existence. The table of contents is followed by an alphabetical listing of devices (pages 8 -10) and then by their inventors (pages 11 - 14). The guide is even illustrated with diagrams of the devices.
Wouldn't it be cool to build your own?