If you're relaxing in a chair right now, happy to not have to be moving around, I have some bad news.

If you are at the equator, you are spinning about 1000 miles per hour, with the rotation of the earth. If you are in American Fork, Utah, where I am, at about 40 degrees latitude it isn't as bad, but you are still jetting along at 800 mph. Good thing most things on the surface are moving right with us. But if you traveled instantly back in time just one minute, if you weren't tied to your place of origin, you'd appear about 17 miles west of where you started. In my case, deeply embedded in Table Top Mountain, near Cedar Fort, Utah.

It gets worse. Earth is moving around the sun at 67,000 mph. If you time traveled back just one day, you'd appear in empty space over 1.5 million miles from the earth's location when you punched the time machine's button. Oops! And I won't even talk about how fast the solar system is moving relative to its galaxy.

So sit back in your chair, but hold on to the arms a little tighter. And maybe give up on that whole time travel thing.

Anyone more scientifically inclined that wants to correct my assumptions, feel free.