This free App on Radar & Sonar Engineering covers most important topics in simple English and diagrams for a quick study and revisions at the time of Exams, Viva, Assignments and Job interviews.
It is the most useful App for last minute preparations. The best app for school, college and work. If you are a student It will help to learn a lot.
This useful App lists 170 topics in 5 chapters, totally based on practical as well as a strong base of theoretical knowledge with notes written in very simple and understandable English.
Consider this App as a quick note guide which professors use in a classroom. The App will help in faster learning and quick revisions of all the topics.