Plasma Ball Stock10 Leonardo da Vinci developed a

Leonardo da Vinci developed a range of innovative war machines that improved upon traditional medieval designs

the high contrast of the Super Plossl line is perfect for both deep sky and planetary imaging

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Travel around the world to uncover which bird laid the heaviest egg ever recorded

Plasma Ball Stock10 Leonardo da Vinci developed aThe Plasma Ball is a fascinating blend of science and spectacle. At its core, a Tesla coil sends high voltage alternating current through noble gas inside the glass sphere, causing escaping electrons to light up the gas and create glowing arcs of electricity that reach towards your fingertips when you touch the glass. It's a genuine, hands on demonstration of plasma the fourth state of matter, found in every star in the universe. The ball features two