You are not exactly an amazing scientist.
You basically work out of your apartment, you have no funding, no materials, no credibility and no skill in anything apart from completely stupid theories that have been proven impossible several times. All the other scientists say that time travel is impossible, and that dimensional travel is slightly less stupid if still hard to do. You know this isn't true, because you... No, you have no proof at all. As you tinker with the scrap of metal lying on your desk, you start wondering how many months have passed with this stupid bloody obsession. You remember the landlord trying to force you out with a shotgun, and several estate agents wandering in with families only to see you cooped up in the dark, pale as a dead body, still working on the shapeless pointless scrap of metal you have, and running away. You still wonder what the hell you are supposed to do when a SWAT team is sent in to get you out of this apartment and into a mental asylum.
After having a break of popcorn and some TV watching, you come back to your obsession. This idiotic scrap of metal that could change everything.
You sit down, and stare at it. Hey, what happens if you hammer this part of it...
The machine's lights turn on. It starts to whir. The touchscreen from an Iphone you found turns on, and some numbers appear on the screen.
"DATE: 22nd of May, 2011, 4:42 AM."
You fiddle around with the date with your fingers, and it changes. Hm. What date would you like to go to?