Dan Karmgard leading a tour Sunday during Sciencefest. He is talking about a prototype fusion rocket being developed in this lab at Tibbar Plasma Technologies, Inc. at 274 DP Road. Photo by John McHale/ladailypost.com

Young visitors check out a 3D printer Sunday at Tibbar Plasma Technologies, Inc. Photo by John McHale/ladailypost.com

John Martinez sits in front of a flow cytometry, which he helped develop. The cytometer is an instrument for making measurements in biological samples. Photo by John McHale/ladailypost.com

Tibbar CEO Richard Nebel speaks about the company and its mission before a tour of the facility Sunday during ScienceFest. Tibbar Plasma Technologies, Inc. is a research company dealing in plasma physics and controlled fission. Photo by John McHale/ladailypost.com

The glow in this device is plasma. Photo by John McHale/ladailypost.com

A 3D printer at Tibbar Plasma Technologies, Inc. creates a dinosaur, which was given as a handout to visitors during Sunday’s event. Photo by John McHale/ladailypost.com