Inside of a student's laboratory in a physics school for the students to research. Metal tubes.

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Keywords: chemistry, college, danger, education, energy, equipment, examine, experiment, explore, field, intelligence, interior, iq, knowledge, lab, laboratory, laser, learning, metal, optics, physics, power, protective, quantum, research, researcher, result, school, science, scientist, source, student, students, studies, study, tech, test, tools, tube, tubes, university