The adventurer adored dinosaurs so much he decided to pay them a visit.
He got himself a clock, a calendar, sand, springs, mirrors, foil, and a net to catch himself in case the land isn't where it currently was.
It was perfect.
He taped his time machine together and set the clock and calendar to the correct time and date and then he waited.
Occasionally he prised open the door of his box and discovered his wife still sitting there, staring.
He couldn't tell if she was getting any younger.
He didn't dare ask.