- Daniell cell some of the history (Golding Bird and John Dancer)
- Henry Letheby part on interrupter circuit
- Electric current, the section about the symbol
- Stethoscope Early history and Golding Bird
- Electrode array, resistivity and diagram of Wenner array
- Electrical element
- Fifteen puzzle
- Voltage multiplier
- Black box
- Antimatter
- Copper
- Oliver E. Buckley
- Equalization filter
- South Devon cattle
- Devils Tower National Monument
- Twisted pair
- Shunt (electrical)
- YUV
- Frame-dragging (small contrib but proud I was even able to mess with that article at all)
- Airport
