The load is now a boiler. (See Figure 4, page 20.) This wiring diagram shows 120 V coming from L1 of a circuit breaker, through a switch, powering a boiler control and returning through L2, back to ...

For more than a century, cars have meant freedom, escape and self-reinvention to Americans. Now Tesla’s forthcoming Cybercab makes us ask whether we can have the romance of the open road without ...