Ur logical thinking is highly superb sir.Ela sir meeku elanti logics vastunnai sir enni videos ki ela logic ga cheppadam chala kastam sir. physics and biology topics tet syllabus elane logic ga videos cheyandi sir.Tq sir.
Janatha garrage movie lo vaallu mechanic work chestharu , scientist name lo kooda mech(mechanic) ani undhi soo alaa gurthupetkovachu sir ladies aithe . chaala useful video sir thnq soo much sir🙏🙏🙏🙏🙏@rajitha devasani