Will Sheldon give up physics to work on a railroad?
What happens when Sheldon is given the opportunity to be a train engineer for a day?
Who needs a fancy guidance system?

Credit: Sonja Flemming/CBS
This guy wants to work on the railroad all the livelong day.
The unit has been approved.
Why would they start completely over?
Say hello to a $4,000 solution to getting Sheldon out of their hair!
Leonard presents Sheldon with a special gift: a ticket for the ultimate train experience.
Amy listens as Sheldon drones on and on about his locomotive agenda.
Will they stay in the caboose?
Can he perform track maintenance?
Who gets to memorize a very thick manual?
Dr. Cooper, thats who!
While Sheldon learns hand signals, Leonard and Howard bask in the peaceful ambiance of their Sheldon-free lab.
He suggests they get the kid with two shirts to work out the math.
They leave the baby in the questionably capable hands of Raj and Stuart.
I say questionable because I dont think Bernadette should have to tell Stuart not to drink her breast milk.
When they arrive at the club, Penny is annoyed to find that its now a bookstore.
But Penny is ready to call it a night.
Penny feels like she and Leonard are stagnant since they dont have a house or a baby.
Pennys spirits lift just as Amys plummet.
She starts crying because her boyfriend doesnt even think about marriage.
This makes Penny cry, which makes Bernadette lactate.
Weve come a long way on this show, havent we?
Hes no longer a physicists.
Something clicked, then something clacked.
Now hes an engineer.
Not a goofy one like Howard.
Leonard gets the brilliant idea to recreate the formula with nonsense as the solution.
He even adds Charlie Browns hair squiggle into the mix.
Leonard figures Sheldon will be so mad that hell fix the formula himself.
They present the board to Sheldon, who deems it a hot mess.
Leonard asks him to like work the math, and Sheldon draws Charlie Browns entire face.
Leonard and Howard may be his friends, but they are blockheads.
The final minutes were so epic that I almost bumped up the episode grade.
Amy has a daydream about Sheldon all sweaty and dirty as a train conductor.
In so many ways.
Jim Parsons arms definitely deserve an Emmy nod.
We would have the standard and miniature, but not toy or teacup.
PENNY: You guys ready to get crazy?AMY: Well, the bra under here aint beige.