Three scientists discuss scientific subject

---

Size: 5000px × 3535px
Photo credit: © VIACHESLAV ZHELUNOVYCH / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: background, blackboard, board, business, chalk, chalkboard, class, classroom, concept, confused, confusion, crazy, drawing, education, equation, formula, formulas, idea, inventor, knowledge, learn, mathematical, mathematics, men, number, people, person, professor, resear, research, school, science, scientist, seminar, student, teacher, test, university, white, young