Solar Technologies Of Days Gone By — Solar Thermal Trains, Solar-Powered Ice Cream Makers, & Solar Steam Engines
April 22nd, 2018 | by James Ayre
Solar energy has been exploited in direct capacities, for various purposes, well before solar photovoltaic cell and module technology became the most prominent example of "solar energy technology." Solar stills, solar cookers, sunlight concentrators, solar furnaces, solar fire starters, et cetera, have a long history of use and/or suggestion of use. For instance, there's fairly good evidence (though disputed by some academics) that solar fire-starters have been in use in Central Asia for a fair many thousands of years
