This paper presents the experimental demonstration of strong magnetic dipole resonance in spherical silicon nanoparticles with sizes ranging from 100 to 200 nm. These nanoparticles exhibit a unique optical response in the visible spectral range, which can be continuously tuned by varying the particle size. The magnetic dipole resonance is excited due to the circular displacement current of the electric field and oscillating magnetic field within the particle, similar to a split-ring resonator but with significantly lower losses. The resonance wavelength can be shifted across the entire visible spectrum from violet to red. The authors used laser ablation to fabricate the nanoparticles and employed dark-field optical microscopy to observe the magnetic light scattering. The experimental results are compared with theoretical predictions based on Mie theory, showing a good agreement. This work opens new possibilities for the design of low-loss optical metamaterials and nanophotonic devices.This paper presents the experimental demonstration of strong magnetic dipole resonance in spherical silicon nanoparticles with sizes ranging from 100 to 200 nm. These nanoparticles exhibit a unique optical response in the visible spectral range, which can be continuously tuned by varying the particle size. The magnetic dipole resonance is excited due to the circular displacement current of the electric field and oscillating magnetic field within the particle, similar to a split-ring resonator but with significantly lower losses. The resonance wavelength can be shifted across the entire visible spectrum from violet to red. The authors used laser ablation to fabricate the nanoparticles and employed dark-field optical microscopy to observe the magnetic light scattering. The experimental results are compared with theoretical predictions based on Mie theory, showing a good agreement. This work opens new possibilities for the design of low-loss optical metamaterials and nanophotonic devices.