One of the biggest crises on the planet in the 21st century is clean water.

There are many working models out there, but without exception they use huge amounts of energy to purify the water.
Though Solar Water PLC has the best design, it is also restricted by location (land-based) and uses energy to purify the water, leaving the problem of disposing of brine.

The “Rainmaker” is solar-powered. The restriction would be location. It is water-based (ocean, sea) and would need to be 30° N/S of the equator for maximum heat from the sun.
The processes of evaporating steam, cooling to water and then flowing down a sloping pipe are natural.

Basically, the principle is exactly the same as a still used in breweries. The concept has been around for about thirteen hundred years.
It was first known to be developed by the Arab Alchemist Jabir Ibn Hayyan, and Aristotle (384-322 BCE) also knew of the process.

Please share this with anyone you think would build it. No license or patent needed.
I believe inventions that benefit humanity and our planet should not be allowed to restrict use or charge for it.