A terrestrial globe with a world-wide watch function according to a rotation of the globe. More particularly, it relates to the technology making feasible ultra high-speed logic operations while maintaining a small size and a low input power by utilizing a cross-phase modulation wavelength converter composed of semiconductor optical amplifiers in the form of a Mach-Zehnder interferometer with nonlinear characteristics. Owing to magnetic attraction between the magnetic elements, the organic tissues of the patient are drawn together to constrict tissues or to close or collapse a wound or vessel.