If you need a refresher on how GPS works, we can explain it. If you think the idea of a module containing rubidium is far-fetched, don’t forget you can already get them for precision clock work.

Car sized passenger capsules travel in 1.5m (5′) diameter tubes on frictionless maglev. Air is permanently removed from the two-way tubes that are built along a travel route.

News Viva Tubes, Easthampton supplier of vacuum tubes for vintage and high-end electronics, amps up with retro technology Published: Jan. 16, 2023, 2:48 p.m.