The package from Bell Labs was small, about the size of a regular teacup, and was tightly taped.

After laboriously removing the protective outer packaging with scissors, Evan and Layton saw the single crystal of germanium they had been dreaming of, a silvery-gray crystal smaller than a fingernail.

Seeing this, Evan's eyes lit up blindly, and he slapped Layton on the shoulder and said, "Good, now we can get to work." ”

Leyton, who was only looking at Evan Ma, was equally excited, and after rubbing his shoulders indifferently, he asked, "What's next?"

"What else can it be, of course, to find evidence that germanium as a semiconductor can amplify electric current," Evan said. ”

Bell's experiment gave very little germanium, and every bit of Evan had to be used on the blade. Evan decided to skip some of the pre-exploratory work and go straight to the point-contact transistor first. Anyway, the principle part of Bardeen has almost done it, and he is not afraid that he will not be able to explain how it works when the transistor is made. The reason why Bardeen and others at Bell Labs failed to do it in one step was that the researchers had a habit of trying to figure everything out, and second, the design of a working transistor required a flash of inspiration, so it took nearly a year from the time they observed the amplification of germanium at the beginning of the year to the actual design of a working transistor (in another world).

The point contact transistor that Evan intends to make is very simple, and the materials required include a single crystal of germanium, gold leaf, a spring, a screw, a triangular plastic wedge, and a frame made of plastic in the shape of a "bang".

It takes a lot of time and money to prepare these materials, the most expensive of which are germanium and gold leaf.

After carefully putting away the germanium crystals, the two began to prepare for the next step.

The two made a division of labor, and Evan was responsible for getting the plastic parts (this was required by Evan himself, this thing magic7 can do it, as long as there is a mold.) and the rest are the responsibility of Leiden.

Although Evan is desperate to get everything done in one day, the world is material and does not change because of Evan's will.

After communicating your request to magic7, the rest can only wait quietly.

Evan regretted it at this point.

Knowing that the germanium single crystal was so smooth, he should have asked the magic7 to make plastic parts at Christmas. At that time, the factory was on holiday, and the injection molding machine could be used as you pleased, without affecting the factory.

……

The next day, Friday, in the evening, Evan returned to the cabin in the woods.

Today is a special day, January 17th, the birthday of Evan's body.

On this day, Evan himself didn't particularly care, and he didn't even realize it.

It wasn't until he walked into the house and saw the new decoration and the streamers that Virginia and Audrey sprayed left and right that Evan remembered that it was his birthday.

"Happy Birthday!"

"Happy Birthday!"

Virginia and Audrey each give Evan a hug, and Audrey gives her a kiss.

Then, Audrey dragged Evan to the dining room, where a twelve-inch chocolate cream cake was placed on the table, with the words "Happy Evan's 18th birthday" written in chocolate on the surface of the cake, and a circle of candles on it.

There are also several delicacies around the cake.

"Here!" Virginia handed over a lighter.

Audrey said, "Light the candle, I made this cake myself." ”

Evan took the lighter and lit the candles one by one.

"Alright, let's make a wish!"

Evan put the lighter on the table, gently scratched Audrey's nose, and smiled: "Is it my birthday or your birthday, how do I feel that you are more anxious than me?"

"Oh! I see, you can't wait for chocolate!"

"You snack!"

Evan's words made Virginia laugh out loud, and Audrey blushed, and then urged: "Make a wish, make a wish!"

Evan closed his eyes, and after a few seconds, he opened them again, then took a breath and blew on the candle, which went out.

Virginia and Audrey applauded, and then one of them held a gift box and handed it to Evan.

"Happy birthday, Evan!"

"I really envy you, I bought a bowl of cake at home at that time, even if it was my birthday. ”

Virginia said jealously.

Evan replied, "Thanks, Virginia. ”

"You don't have to envy me, if you find a boyfriend, you are guaranteed that someone will celebrate your birthday every year. ”

As he spoke, Evan smiled and looked at Audrey beside Virginia.

Virginia deliberately shook her body, looking unbearable, and then gave up her position to Audrey.

"Happy birthday, Evan!"

"Thank you, Audrey!"

Audrey shook her head and said, "It's okay!"

"Why don't you open it and take a look?"

"Of course you have to open it!" Evan said as he tore open the packaging on the outside of the gift box, "If I don't like it, can I return it?"

"Of course...... No way!"

The two women said in unison.

Virginia's gift was two small things, a Parker pen and a tie clip.

Seeing that Virginia gave her two pieces, Evan gave her a strange look.

Audrey gave her a Tiffany watch with a golden dial.

Evan picked up the expensive gold watch, glanced at Audrey, then reached out and untied the Hamilton watch on his left hand and put the new watch on.

After Evan put on the watch, he raised his hand and lit it up in front of the two women, and said shyly, "How is it, worthy of me?"

Audrey nodded incessantly.

Virginia ignored him, sat down at the table, beckoned to Audrey, and said, "Audrey, sit down and divide the cake!"

Evan also said: "Yes, yes, yes, hurry up and eat, otherwise the dishes will be cold." ”

Audrey is a foodie with a sweet tooth, and in the end, most of the cream and chocolate on the cake went into her stomach.

A little over an hour later, Virginia left the cabin in the woods. Audrey is cleaning up the mess in the kitchen.

Evan was in the living room answering the phone.

On the other side of the phone were Sacramento's younger siblings, and Nina sent birthday wishes to Evan.

After that, as if it had been an appointment, people who knew about Evan's birthday today called one after another.

First Carl, then Davidson, Orville, the chairman of the Blacker House, and finally ...... Linda.

Instead of mentioning why she didn't come with Virginia to celebrate his birthday today, Linda asked, "Do you like that Parker pen?"

Evan rubbed his temples with a headache, I see, I said how Virginia sent two things.

"I love pens...... Linda" Evan just wanted to say something more: "...... Toot ......"

The microphone comes out with a tone indicating that the call is dropped.