Abstract: The present invention, in the field of aviation, is a Vertical Take-Off and Landing (VTOL) vehicle comprising fuselage, vertical tail, four tilting wings, electric generator which uses liquid fuel, rechargeable electric energy storage devices, sensors comprising air flow sensors and an actuation and feedback control system. The four tilting wings may rotate, independently one from the other and in a controlled way, around two axes parallel to the pitch axis, one of these axis is in front of the center of gravity of the vehicle and the other behind it. All the four wings provide positive lift during forward flight. There is at least one electric motor in each wing which drives at least one thrust generator. The thrust generators wind streams interact with all the vehicle lifting wings during vertical take off and landing to reduce the possibility to stall at low vehicle speed.

Abstract: The present invention relates to a motor for the transformation of electrical energy into mechanical motion, comprising: • at least one subsystem called “inducer” which includes a sequence of individually controllable electromagnets and interspersed with non-ferromagnetic elements, • at least one subsystem called “induced” which includes ferromagnetic material, • at least one source of power supply to provide electric current to each electromagnet, in which “inducer” and “induced” subsystems or can rotate about at least one axis of rotation. The rotation is due to the torques generated in succession by the magnetic fields of the electromagnets in the neighborhood of the contact point or the minimum distance between the two subsystems. The direction and speed of rotation are determined by the direction and intensity of the current with which the electromagnets are powered.

Abstract: The electromagnetic radiation carries both energy and angular momentum. The angular momentum can be divided into the components “Spin Angular Momentum” (i.e. the polarization) and “Orbital Angular Momentum” (OAM). The use of radiation with OAM can allow a more efficient utilization of the radio spectrum for example by means of the re-use of the same radiation frequency with different OAM modes. The present invention concerns the definition of devices, systems and methods for the generation of OAM modes in the radiation. For this purpose it has been proposed the use of one or more lenses which have a suitable distribution of refraction properties in order to generate OAM in the radiation which passes through them. The proposed lens can be composed of standard dielectric materials or of metamaterials with predetermined physical characteristics or also of tunable metamaterials for an appropriate modulation of the lens properties.