Since no one has created a machine capable of traveling through time that we know of, I can only draw inferences of what a time machine of this nature would function like from my imagination, and my knowledge of sci-fi films and novels. I imagine that the machine would hover above the surface of the ground, and shutter excessively for a little while, and then, somehow, channeling more energy than you could possibly fathom, it would disappear instantaneously with a blinding flash of light. It glides effortlessly though the distorted dimension of time, hurtling you through a series of intricate passageways that projected images depicting the universe throughout the course of time. It pulses a strange, multicolored energy from its exhaust pipe that evaporates into the “atmosphere” as the bulky piece of machinery continues to catapult you through the vortex of time. The control panel is equipped with an advanced artificial intelligence program, that voices the warning, “50 years until you’ve reached your desired time period” and you gaze the phantasmagorical world of time as it desintegrates before your eyes. Finally, you’ve arrived.
The correct way to punctuate is seen in b: <span>To whom it may concern: </span> In formal settings and when you don't know the exact identity of the person a dresses it is usual to use a colon in this situation.
A sentence fragment is a incomplete sentence like, one that doesn't fully explain its self. fragment = came to the house, complete = Lilly came to the house to visit.