An apparatus for magnetic field compression includes a toroid and a plurality of separate coils wound around the toroid. The coils are spaced about a circumference of the toroid and each coil generates a magnetic field in response to electric current flowing in the coil. The toroid and a group of the coils each include a size that respectively gradually decreases over a predetermined portion of the toroid. The magnetic field is compressed or has a highest magnetic flux density proximate a central region of the coils around the toroid.

In one aspect, the present invention is directed to a method of generating negative and positive gravity within thin walls that enclose a spacecraft's space or cavity, possibly with passengers. One wall generates weak negative Ricci curvature and another wall generates weak positive Ricci curvature in their centers. The machine achieves this by electric charge separation within at least two capacitors; each capacitor consists of two or more thin conducting layers and of one or more dielectric layers. In the case of 3 conducting layers, the rear capacitor's conducting middle layer is charged with negative charge while the front capacitor middle layer is charged with positive charge. In absolute value, the middle layers may have more charge than the sum of charge in the layers around them. In another embodiment of the invention, at least one of the capacitor layers in each one of the two capacitors is replaced by a rotating conducting curved plate or with a thin curved drum shaped coil in which electric current flows, in order to generate a dynamic component of the electric field. By using the capacitors alone, the Machine generates a very weak warp drive with negative and positive gravity which can be as low as 18 orders of magnitude less than required by an Alcubierre warp drive's classical (+, )10.sup.27 Kg. In that aspect of the invention alone without a dynamic field, the machine will not manifest any measurable propulsion. In another aspect, the layers are provided with a dynamically changing electric field that in addition to the static baseline of their electric field, the rapidly changing dynamic electric field is in high radio frequency or is in lower frequency but with high spike wave form. By the Harold White effect, this dynamic field dramatically reduces the amount of gravity and antigravity which are required in order to achieve feasible propulsion for space travel. In another aspect of the invention, the space between the two capacitors is enclosed by this dynamic field, which provides inertial shielding of the craft. The invention is aimed at harnessing gravity and antigravity which are generated by electric charges, and which are not part of the gravity expected from the Electromagnetic Energy Momentum Tensor in the Theory of General Relativity.

A magnetic field generating-apparatus for biostimulation including: a core formed by magnetic material; and coils wound around portions of the cores, wherein the core includes at least two pairs of leg portions which are juxtaposed each other, in which for the respective two pairs of leg portions, there are provided gap-portions which mutually cross each other, the coils include first coil portions and second coil portions forming a first magnetic-path and a second magnetic-path between the two pairs of leg portions and the gap-portions respectively; and wherein there is generated a magnetic field of first direction which lies on the first magnetic-path, there is generated a magnetic field of second direction which lies on the second magnetic-path, and depending on a magnetic field formed by synthesizing the magnetic field of first direction and the magnetic field of second direction, a living body is stimulated.

Key assemblies are disclosed herein that are retractable and/or that present a variable key assembly depression force to a user. In one example, one or more key assemblies may be provided that each employ one or more electro-permanent magnets (EPMs) together with permanent magnet and/or magnetically permeable (e.g., ferromagnetic) key assembly components to control key retraction and extension, and/or to control peak depression force (e.g., typing force) required to depress and displace a key assembly from an extended position to a lower position that causes the key assembly to produce a digital or analog output signal.

An improved long range coil and driver assembly for a magnetic field generator wherein the driver and coil generate a large magnetic field is provided. The coil and driver assembly includes a source impedance control network which includes a plurality of pairs of resistors and amorphous noise suppression devices, and a coil that utilizes a unique basket weave winding pattern to reduce the effect of the back EMF from one wire on the adjoining wires, thereby reducing the impedance of the coil. The reduced impedance and improved impedance control increases the current that can flow creating a larger field.

A magnetic sheet includes a magnetic layer, a heat radiation layer having a prominence and a depression formed in a surface and that faces the magnetic layer, and an adhesive layer disposed between the magnetic layer and the heat radiation layer, and including a heat radiation filler that has shape anisotropy.

A force feedback gripping device employs a mechanical gripper (23), an electromagnetic actuator (22) and a force feedback controller (21). The mechanical gripper (23) is operable to be actuated to one of a plurality of gripping poses for gripping an object. The electromagnetic actuator (22) includes a magnetorheological elastomer (MRE), wherein the MRE is operable to be transitioned between a plurality of shapes dependent upon a variable strength of a magnetic field applied to the MRE, and wherein each shape of the MRE actuates the mechanical gripper (23) to one of the gripping poses. The force feedback controller (21) is operable to control the variable strength of the magnetic field applied to the MRE based on an estimation of a gripping force of the mechanical gripper (23) and on a sensing of a load force of the object responsive to the gripping force of the mechanical gripper (23).

A single-turn coil and supporting structure for producing intense magnetic fields are described. Magnetic field and mechanical stress analyses aid in designing a magnetic coil assembly that can produce peak magnetic fields in excess of 10 Tesla in large cavities for more than 1,000 pulses.

A method of the producing artificial gravity in an electromagnetized environment is provided with a bodysuit, a corridor, a plurality of mobile electromagnets, a plurality of mobile inertial measurement units (IMUs), a plurality of first fixed electromagnets, second fixed electromagnets, and at least one computing unit. The first fixed magnets and the second fixed magnets are integrated throughout the corridor to continuously generate a uniform magnetic field through the corridor. The mobile electromagnets are integrated throughout the bodysuit to electromagnetically interact with the first fixed electromagnets and the second fixed electromagnets, which simulates gravity as the bodysuit moves through the corridor. The mobile IMUs are integrated to the bodysuit so that the mobile IMUs sends spatial positioning and orientation data to the computing unit. This feedback data allows for better gravity simulation because the computing unit can then directionally and magnitudinally adjust the electromagnetic field of each mobile electromagnet.

A coupling mechanism for coupling a light vehicle to a surface, the coupling mechanism comprising: a magnetic coupling device arranged such that it may be switched between a first mode and a second mode, wherein in the first mode the device generates an external magnetic field less than a first strength, and in the second mode the device generates an external magnetic field of at least a second strength, the second strength being greater than the first strength; and a surface detection unit, coupled to the magnetic coupling device, and arranged to determine when the light vehicle is within a predetermined distance of a surface, wherein in response to the surface detection unit determining that the light vehicle is within the predetermined distance, switching the magnetic coupling device from the first mode to the second mode, to secure the light vehicle to the surface.