Abstract: There is disclosed in one example a method of observing continuous daylight adjustment (CDA) time, including: commencing at a first transition date observing an annual spring-forward period including lengthened social seconds, wherein a lengthened social second is longer than a standard scientific second; commencing at a second transition date observing an annual fall-back period including shortened social seconds, wherein a shortened social second is shorter than a standard scientific second; and computing and electronically displaying in a human-readable format a current social time different from a current scientific time.

Abstract: There is disclosed in one example a method of observing continuous daylight adjustment (CDA) time, including: commencing at a first transition date observing an annual spring-forward period including lengthened social seconds, wherein a lengthened social second is longer than a standard scientific second; commencing at a second transition date observing an annual fall-back period including shortened social seconds, wherein a shortened social second is shorter than a standard scientific second; and computing and electronically displaying in a human-readable format a current social time different from a current scientific time.

Abstract: Described herein is an additive manufacturing apparatus that is well-suited for constructing piezoelectric sensors. The additive manufacturing apparatus includes an extrusion nozzle formed of a conductive material such as aluminum. The extrusion nozzle has a channel by way of which printing material exits the extrusion nozzle, wherein a build plate is configured to receive the printing material responsive to the printing material exiting the extrusion nozzle. An arc suppressor formed of a semiconductor is coupled to the extrusion nozzle and is configured to dissipate excess charge that would otherwise exist on the extrusion nozzle when a relatively high bias voltage is applied to the extrusion nozzle. Thus, the arc suppressor mitigates arcing between the extrusion nozzle and the build plate. Arc suppressing gas is also optionally introduced into a printing region, thereby further mitigating arcing between the extrusion nozzle and the build plate.