Presentations include “The Million Volt Tesla Coil” by Kenn Lonnquist at 11 a.m.; “The Physics of Music” by Ansel Foxley at ...

Recharging the Energi takes about 2½ hours on a 240-volt level 2 EV charger or up to seven hours on a standard 120-volt household power outlet. If that kind of operation sounds familiar ...