Moray: the 37-meter-deep, open air Inca greenhouse. The lower terraces create their own microclimates. The site is about 3500 m.a.s.l. but the temperature inside the structure gets so warm, you could cultivate jungle fruits on the lower terraces.
The center screen displays road speed, engine RPM, gear selection, and the posted speed limit. The left screen displays the trip computer while the right screen displays the engine's operating temperature and the car's remaining range.
InStove rocket stove gas flow diagram... At the heart of these stoves is an advanced, insulated metal combustion chamber built from high-temperature 310 stainless steel and 601 nickel alloys. The “rocket stove” design concentrates heat and mixes combustion gasses to create operating temperatures in excess of 1100 degrees Celsius, which allows the stoves to literally “burn up the smoke.”
A Stirling engine is a heat engine operating by cyclic compression and expansion of air or other gas, the working fluid, at different temperature levels such that there is a net conversion of heat energy to mechanical work. Or more specifically, a closed-cycle regenerative heat engine with a permanently gaseous working fluid, where closed-cycle is defined as a thermodynamic system in which the working fluid is permanently contained within the system...