I had made the greatest scientific discovery to man, but no one except me would ever know. It was too dangerous in the hands of anyone else. I had made time travel possible and I already knew what I had to do: fix the past. Time travel required something from that time line so traveling to the future was nearly impossible.
I, Sheldon Lee Cooper have to stop my best friend from ruining so many lives.
I inserted my best friend's high school graduation tassel to the watch sized device. The device shot out 3 different colored ribbons of light that swirled to create a vortex/ portal at the door way. My findings were that the white ribbon represented the future which is ever changing while the black is the past with grey being the present.
As a I walked into the portal, I took a step from a doorway that existed in the past. Doorways somehow stabilized the portals.