主权项 |
1. An apparatus comprising:
an aerodynamic housing including:
at least one ballast container having:
an electrically insulated and fire resistant envelop including:
a gas, a gas mixture, a gas-liquid mixture, a gas-solid mixture or a gas-liquid-solid mixture, anda plasma generating and heating assembly, where the containers provide lift by generating a heated gas, a superheated gas, or a plasma within the envelop. |