Abstract: A shoe or sneaker includes a hydromagnetic joint having a first joint part including a first magnetic element having a first magnetically charged surface, and a first buoyant element coupled with the first magnetic element. The first buoyant element overlies a surface of the first magnetic element that is opposite the first magnetically charged surface. The shoe includes a second joint part including a second magnetic element having a second magnetically charged surface that opposes the first magnetically charged surface of the first magnetic element, and a second buoyant element coupled with the second magnetic element. The second buoyant element overlies a surface of the second magnetic element that is opposite the second magnetically charged surface. A liquid is disposed between the first and second joint parts. The first and second joint parts are moveable relative to one another and are in fluid communication with the liquid.

Abstract: A hydromagnetic joint includes a first joint part having a first magnetic element with a magnetically charged surface, and a first buoyant element coupled with the first magnetic element, and a second joint part including a second magnetic element having a second magnetically charged surface that opposes the first magnetically charged surface of the first magnetic element, and a second buoyant element coupled with the second magnetic element. The hydromagnetic joint has a liquid disposed between the first and second joint parts. The first and second joint parts are moveable relative to one another and are in fluid communication with the liquid. The first and second magnetically charged surfaces have a common polarity and repel one another.

Abstract: An intervertebral implant includes a first part attached to a first vertebrae, the first part including a first magnetic element having a first magnetically charged surface and a first buoyant element coupled with the first magnetic element, and a second part attached to a second vertebrae, the second part including a second magnetic element having a second magnetically charged surface that opposes the first magnetically charged surface of the first magnetic element and a second buoyant element coupled with the second magnetic element. The implant includes a fluid body, such as a liquid or gel, disposed between the first and second parts, whereby the first and second parts are in fluid communication with one another through the fluid body. A flexible enclosure extends between the first and second parts for containing the fluid body therebetween, whereby the first and second parts are moveable relative to one another.