I've sent my application. I have a question: how are core-based technologies, such as carriages, powered? Do they run solely on the internal energy of the core? Or do they run on other forms of energy (electricity, internal combustion, etc.)? If the cores provide the power, and the cores have finite power, then are the cores like disposable batteries or rechargeable fuel cells?

Additionally, how accessible are core-based technologies? Are they used in common household appliances? Or are core technologies more expensive and are thus generally not found in residential use?