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Pulsed Plasma Thruster A Pulsed Plasma Thruster (PPT), also known as a plasma jet engine, is a form of electric spacecraft propulsion. PPTs are generally considered the simplest form of electric spacecraft propulsion and were the first form of electric propulsion to be flown in space, having flown on two Soviet probes (Zond 2 and Zond 3) starting in 1964.

The VASIMR ion engine could - if powered by an onboard nuclear reactor - take astronauts to Mars in just 39 days (Illustration: Ad Astra Rocket Company)

Augustin Mouchot :Solar Energy Engines in the 19th Century Augustin Mouchot was a 19th-century French inventor of the earliest solar-powered engine, converting solar energy into mechanical steam power.

Augustin Mouchot :Solar Energy Engines in the Century Augustin Mouchot was a French inventor of the earliest solar-powered engine, converting solar energy into mechanical steam power.

knowledge and rumors | Hero of Alexandria 10-70 AD : Steam-Powered Device

the earliest steam-powered device -Josh Roman

Making its debut at the show this year is La Vecchia's Quant e-Sportlimousine, whose power system is somewhere in between the two--using a technology known as flow cells. It features a powertrain developed by nanoFLOWCELL, a German company with technical ties to Bosch. Breaking it down to simple characteristics, flow cells are like batteries, but share aspects of electrochemical accumulator cells with those of fuel cells.

Quant e-Sportlimousine concept supercar has been officially approved by the German certification group tüv süd in Munich for use on public roads

One kilometer solar road and 2,880 solar panels in the small village of Tourouvre-au-Perche in Normandy, France.

One kilometer solar road and solar panels in the small village of Tourouvre-au-Perche in Normandy, France.

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