Black Hole Time Machine

This story is one scientist invents one time machine to bring whose one student to go to future time journey. It is my first science fiction novel written and a science comedy, a time travel science story. This scenario of this series takes place in four stages of journey.
The first journey indicates the Boston University lecturer, Jim's time travel machine invention and who invites the student, Johnny to enter this big circle time machine to go to future time travel together.
The second journey indicates Johnny go to the future court judgement journey alone. Johnny will meet himself in the future Boston city US court in the future time.
The third journey, the time journey traveler Johnny who will enter the time machine to discover whether who will do what kind of job in Boston University.
The end of story final journey, he will describe who is one human development science subject lecturer and he can see himself who is teaching in one large lecture hall as well as who can listen what his is teaching in the lecturer hall. Thus, he will know what he will teach and he will write all notes to remember to prepare his teaching in the future.
This time machine science story concerns one lecturer invents one time machine to help the main actor his student Johnny to catch his time machine to go to the future time and go back the present time travel. His student Johnny's surprising journey will be described in this fiction.