This is xenon at low pressure in a very strong field. The movement is convection, but what decides where the ring is, maximum field strength? Is there a formula that says where that is, it just seems part way into the circle formed by the coil? 🧪

I love the look of Nixie tubes but I'm not sure that at this stage in life, with failing eyesight and shaking hands, was the time to start soldering them into circuit boards. What a pain!

This is the second time tatty has decided this wooden hide is a rival. Normally he ignores it or treats it as a love interest. 🧪🐍

What looks like a hornet and flies like a fly? A hornet fly!🌿🪳🧪

3 hummingbird hawk-moths on our buddlia.🪳🧪🌿

I made a coil for my magic Eye.