Abstract: Docks for directly charging portable electronic devices, without need for media content communication across the dock-based connection, may be implemented in manually accessible wall socket arrangements and convenient power strips. Accessories such as connector cables and plug-in docks are not required. Direct-charging docks recessed for accepting the base of a device such as a handheld electronic device may have, in the recess, a male connector for snug electrical engagement to the device. Other connectors for such devices are implemented without recessed device docks but are surrounded by a rim to prevent injury that might result from inadvertent contact with the connector.

Abstract: A plurality of cylindrical rollers are embedded in a roadway over which wheeled vehicles move such that the vehicle wheels rotate the contacted rollers. A shaft transverse to the roadway supports the rollers and turns with them to transfer power from vehicle contact to an electrical generating apparatus. Power accumulating apparatus, such as a water or hydraulic fluid reservoir, may intervene between the shaft and the generator to smooth the power flow when vehicle travel is intermittent. Alternate apparatus may directly link the shaft to an electrical generator which may, in turn, charge batteries or pump water upwardly to accumulate power for response to later demand. The rollers may be housed in a metal or concrete trough and cross one or more lanes of traffic to a median power collector such as a spider and bevel gear arrangement that is capable of receiving rotating motion from four right angle directions at once.