The Discovery Plasma Orb is equal parts fascinating and educating! Watch as the colorful tendrils of light jump around on their own, then follow your touch or voice, responding to physical contact, speaking, or even music! Place your fingertip on the glass surface and watch the pink and purple strands of light gather around your finger in an amazing combination of science and art! The Discovery Plasma Orb teaches about physics and chemistry! The plasma floating around the orb is a mix of noble gasses and display the visible tendrils of light when the electrode at the center emits alternating electric currents. Placing your hand on the glass creates a discharge path with less resistance than the glass and plasma, hence why the light is drawn to your touch! Learn about noble gases and their interaction with electricity, The Tesla coil in the center emits high voltage alternating electric currents through the plasma, composed of noble gases, Place your fingers on the globe's surface and watch as the tendrils of light follow your touch, Orb emits electric currents that dance energetically around the inside of the globe. WHAT'S INCLUDED: Plasma globe, Power adapter. Model no. 1006213, Wall plug, 12.1"H x 6.4"W x 6.3"D, Recommended playing level: Intermediate, Age: 14 years & up, Weight: 1.45-lbs. Size: One Size. Color: Black. Gender: unisex. Age Group: kids. Material: NONE.