Gravitational GPS ( reintroduced ) October 29th 2018
Tights	.

It is possible to create gravitational GPS system. It follows birds and fishes navigation system. System is based to the distance in between physical and magnetic pole. Animals and humans system is in the ears. It works with sense of balance. Humans have also navigational system. It works so that, when you navigate with it, you always end into place, from where you began. When you get lost in forest, without land marks you always return to place from where you began. You circle around. It is the same, when you get lost in big city without map. You often know and return to the place, where you noticed that you got lost.

- In NS direction magnetic pole is app 1 300 km west from pole, in EW direction magnetic pole is app 900 km north.
- local gravitational data says, that drag center is the center of earth. When you look at the local gravities, you cannot find shift to any direction.

For the system you need compass for getting angle to north  Then you need gravitational angle from a new sensor. North position and angle creates triangles, with what you can calculate current position. Magnetic north is on the surface of earth. 3D triangle system creates unique angles and triangle systems for all locations on earth.

With the system you can build GPS systems, which are fully functional all the time. You can for example build autopilots for ships and planes, which follows maps and-or given route. 

Additional magnetic fields are a small problem with system.  You can detect additional fields two needles. When there is an additional field or fields needles points to different directions. The magnetic field is different for both. With multiple needles you can define locations of the fields. With gravitational angle you find the pole from the calculated fields.

? For GPS system gravitational center must be researched with better precision. Balancer for tilt is one way to get the angle for drag center.

? Shaded inner of earth shows one fact from the molten core, from the inside the radiuses of lava and gas layers are stable. Heat and pressure spreads evenly. Physical slowness and rotation of earth mixes the lava and gases. Shapes of both lava and gas layers are near balls.

Acceleration, speed, gravity and G-force sensors ( derivates from old stolen horizontal x-y acceleration sensor and it's tech )

- In vehicles you can use common piston-spring sensors for measuring gravitational drag and actual drag ( G with atmospheric pressure-temperature system ). Gravitational drag sensor is sealed sensor, overall drag has open top. Both needs temperature correction formula, graph or constant.
- Non-wheeled speedometer can also be built with horizontal piston-spring sensor. You calibrate the speed sensor, when vehicle is not moving. Sensor needs atmospheric temperature-pressure for correcting the reading.
- It is also possible to build a piston sensor, which measures vertical acceleration, vertical speed. These sensors have two springs in the cylinder.
- With compass you get Gravitational GPS to the sensor. 

Push sensor for speed is smaller and more reliable than current rotating sensor. Pressure is singular phenomena. Difficult to find an easy way to separate wind pressure from speed pressure. You can get speed with GPS or radar-beacon point system. 

Vertical speed and acceleration can be corrected with additional sensors.

With add-on x-y acceleration chip you get all parameters for calculations. All sensors need G and temperature sensors for correcting the readings.

The described all-in-one sensor system has all kinds of usage. Sensor is essential for copter car.

The widely used stolen x-y sensor was very simple. There is small ball inside sensor, when you accelerate the ball moves inside the sensor. Cannot remember, what was the final solution for the move of the ball. Think that it has a ball, which rolls over rounded electrified surface. The sensor unit is small, about the same size than matchbox. Ball which hangs in rod provides the same functionality. In the above, you can use balancer ball for measuring x-y accelerations.

Alternatively you can build separate spring sensors for x and y acceleration. Spring sensor can capture movements from only one direction.

Idea was to separate suspension event forces from centrifugal tilt forces and tilt. Knowledge is needed for controlling suspension's stiffness with computer. Sensor can detect accelerations of a tilted vehicle. Support for tilt needs chip.