By Richard Bammer
Earnest and focused, working quietly in a somewhat noisy multipurpose room, Edesiri Mushale, 15, and Mackensie Murphy, 17, made minor tweaks to a robot named Loki.
Hovered over the ’bot Thursday at Sierra Vista School, the two Vanden High students, members of the Fairfield schools robotics team, the RoboVikes, worked on the metal, motorized machine during Press Day at Sierra Vista School in Vacaville.