minus-squarerescla@feddit.nltoLemmy Shitpost@lemmy.world•They are watchinglinkfedilinkarrow-up7·edit-21 year agoThe bottom right one looks like a mercury arc valve: https://en.m.wikipedia.org/wiki/Mercury-arc_valve It reminded me of an old Photonicinduction video https://youtu.be/QY6V2syGnZA linkfedilink
The bottom right one looks like a mercury arc valve: https://en.m.wikipedia.org/wiki/Mercury-arc_valve It reminded me of an old Photonicinduction video https://youtu.be/QY6V2syGnZA