"This globe (1000ml) was a complete surprise. After having great success with filling several green globes I decided that I wanted a large pure xenon globe. I run voltage on the plasma tubes when I am filling them but it only gives me an idea how things will look after I seal the globe and mount it. The fact that the globe is connected to a grounded metal vacuum system tends to distort the plasma effects.
After sealed and mounted this globe I was surprised to see a faint green spider that grew "legs" as the voltage went higher. It looks just like the spikes on ferrofluid with a magnetic field applied and I'd bet the physics is analogous.
This globe has 50 torr of xenon."
Welcome to Taming Lightning, I'm Percy Echols II. I'm the creator and host of Taming Lightning, as well as the emerging plasma tech at Pittsburgh Glass Center, where I'm researching and developing a space to explore Plasma and Neon Light as an Artist Medium.