"Here we are!" Pinkie Pie announced, parking herself in front of what appeared to be a large building or home built into a tree.
Sheldon wobbled forward, finally stopping next to his temporary guide, "I think I've gotten the hang of walking with four legs," he boasted, "I guess I'm a natural."
"That's great!" Pinkie said with a smile, oblivious to the fact that if he were a pony he would have been walking with four legs for many years by now. "Come on, let's go see Twilight!"
"Yes, of course," Sheldon said, taking shaky steps towards the doors of the building. Pinkie Pie knocked on the door, and another pony opened it, one that has a purple coat of fur, and an even darker purple mane. She also had a bone protrusion above her brow, jutting out of her forehead. Sheldon gasped in surprise, "A Unicorn...!" he marveled, "I don't believe it!"
The unicorn, who must have been this, 'Twilight Sparkle' looked puzzled, "What, you've never seen a Unicorn before?"
"No, no I haven't!" Sheldon said, stepping closer to Twilight (purely for investigative purposes), and examining the horn, "Amazing. How did, in this parallel universe, Pegasi and Unicorns manage to evolve? What function does the horn play? Is there any social discrimination between ponies that have or lack wings and/or horns?" He asked in quick succession.
"Okay, you're going to need to slow down," Twilight instructed, gently pushing Sheldon away. She turned to Pinkie Pie and asked, "Who is this?"
"This is..." Pinkie Pie trailed off, realizing she hadn't caught her new friend's name.
Sheldon took the chance to introduce himself, in his own, prescripted style, "My name is Dr. Sheldon Cooper, Senior Theoretical Physicist at Caltech University, currently researching M theory, or, in laymen's terms, String Theory," he rattled off flawlessly.
Twilight looked at him for a moment, then said, "What?"
"I said," Sheldon quickly answered, "My name is Dr. Sheldon Cooper, Senior-"
"No, no, no," Twilight interrupted, "I heard you, but...what?"
"He's not from here," Pinkie whispered.
That much is certain. Sheldon thought, then returned to the business at hand-er, hoof, "Twilight," he started, "I'm not from here, and Pinkie Pie here says you're the smartest pony she knows; I was hoping you could help me get back home."
"Of course!" Twilight assured, always eager to help, "How can I help?"
"I need to build a wormhole generator," Sheldon said.
Twilight looked at him blankly, "A what?"
"Now," Sheldon said, gesturing for her to stay calm, "I know this must be far, far ahead of your own technology, but don't worry, I'm sure you can learn."
Twilight slowly nodded, still confused, "Alright...what will you need?"
"Let's see," Sheldon started, thinking back to his original designs and formulas, "I'm going to need a few electron lasers, a vacuum chamber, a quantum flux manipulator, a few superconductors and quantum cooling chambers, a supply of hydrogen gas, mechanical pieces such as resistors and capacitors, any type of metal or other substance with which I could construct it, and a fixed point in relative spacetime. Though I'm sure I'm forgetting some things right now, they'll resurface in the engineering process."
Twilight said nothing for a moment, "Are you sure you're still speaking Equestrian?"
Sheldon was getting antsy, "You mean you don't even have a vacuum chamber on this planet?"
"Okay," Twilight said, gesturing for him to calm down, "Sheldon, you're staring to worry me here, did you hit your head?"
"Possibly," Sheldon conceded, "But that's not prominent right now; in fact it's note-worthy that head injuries are actually not that oftenly correlated with impaired judgment or memory loss, not so much as other causes such as substance abuse."
"Fascinating." Twilight said, "Now-"
"I didn't say it was fascinating," Sheldon interrupted, "I said it was note-worthy."
Twilight made a face, "Noted," she corrected herself, "Now Sheldon, maybe it would help if you told me where you're from."
"I'm from a parallel universe," Sheldon said instantly, not feeling any sort of reason as to why he should conceal that truth. In fact, why did characters conceal their origins in the movies? Wouldn't they receive help sooner if they were honest? And besides, Sheldon was a terrible liar.
"A what?" Twilight repeated.
Sheldon was fed up with their lack of scientific knowledge. "Alright, forget I said anything; I'm going to ask you a few questions, and you answer them to the best of your ability."
Twilight said nothing, utterly confused.
"What causes the sun to rise and set?" Sheldon started, giving her an easy one. According to his own research, no matter what universe you were in, the laws of physics were uniform. That was one thing he liked about the multiverse; his knowledge was applicable everywhere. He was a genius anywhere he went.
"Princess Celestia raises the sun every morning, of course!" Twilight answered.
"Oh dear," Sheldon said, losing all hope of receiving help, "You mean your society still believes that deities control the processes of nature?"
"Excuse me?" Twilight asked.
Sheldon sighed, "Never mind," he dismissed, "Next question. How many elements are there?
"Uh, you mean the Elements of Harmony?" Twilight clarified, "Six; loyalty, honesty, kindness, generosity, laughter, and magic."
Sheldon just closed his eyes, his hope for this universe dwindling fast. "Oh..." he whined, "Oh no..."
Twilight was quickly growing not so friendly towards this stranger. He just acted so arrogant! "Excuse me!" she objected.
"Next question," Sheldon said, ignoring her. "Why is the sky blue?"
The correct answer was the refraction of light through nitrogen gas in the atmosphere, but Twilight said what Sheldon had been fearing to hear, "It reflects off the ocean."
"Alright," Sheldon said, shaking his head, "I can see that you are no help to me, I'm sorry I tried,"
Twilight made a sound of objection, "What did I say that was wrong?"
"Everything," Sheldon said bluntly.
Twilight frowned angrily, "Well then, what do you say makes the sun rise, and the elements, and the sky?"
"The sun doesn't rise, the planet rotates beneath the sun," Sheldon answered, "There are one hundred and thirteen elements, out of which everything in the universe is made, and the sky is blue due to the refraction of light through one of these elements, nitrogen."
Twilight looked at him like he had bananas growing out of his ears. She shook her head and turned away, "I'm sorry Sheldon, but I can't help with whatever craziness you're talking about."
"It's not craziness," Sheldon objected, "It's science!"
Twilight rolled her eyes, "Sure," her horn suddenly started glowing, and so did a book on a shelf five feet away. The book suddenly jumped up and floated over to Twilight, flipped itself open, and Twilight began reading it.
Sheldon was astounded, "How did you do that?" He inquired.
Twilight looked at him out of the corner of her eye, "Do what?"
"You moved the book without touching it," he explained, and walked over to the book still floating in mid air, inspecting it from all angles. Nothing seemed to be supporting it, "How are you doing that?"
"Magic," Twilight explained obviously.
Sheldon looked at her for a moment, then started, "Was that sarcasm?"
Twilight rose a brow in confusion, "No," she answered.
"Darn," Sheldon remarked, "Wait a minute, it had to be!" He stood up and looked Twilight in the eye as he said this.
"And why is that?" Twilight asked.
"Well because magic isn't real!" Sheldon explained.
Twilight frowned and her brow furrowed. Her ear twitched.
"Get out!" Twilight screamed, slamming the door shut behind Sheldon, sending him flying forward and just barely catching himself before he went sprawling.
Sheldon steadied himself and dusted himself off, calling back through the door, "It's a miracle you ponies managed to build anything like this!" He turned around to see Pinkie Pie standing at his side, "You're still here?"
"I'm going to be your friend," Pinkie Pie assured with a smile, "No matter what crazy stuff you say."
Sheldon looked at her, momentarily wondering what pony law constituted as a homicide, then clearing his head and said, "Alright then. Perhaps you can be more useful than that Twilight character. Where can I find any sort of mechanical technology?"