Timeline by Michael Crichton

“Go in there?” Marek pointed to the tube. Seen up close, it looked more like a white coffin.

“Just remove your clothes and step inside. It’s exactly like an MRI — you won’t feel anything at all. The entire process takes about a minute. We’ll be next door.”

They went through a side door with a small window, into another room. Marek couldn’t see what was in there. The door clanged shut.

He saw a chair in the corner. He went over and took his clothes off, then walked into the scanner. There was the click of an intercom and he heard Gordon say, “Dr. Marek, if you will look at your feet.”

Marek looked down at his feet.

“You see the circle on the floor? Please make sure your feet are entirely within that circle.” Marek shifted his position. “Thank you, that’s fine. The door will close now.”

With a mechanical hum, the hinged door swung shut. Marek heard a hiss as it sealed. He said, “Airtight?”

“Yes, it has to be. You may feel some cold air coming in now. We’ll give you added oxygen while we calibrate. You’re not claustrophobic, are you?”

“I wasn’t, until now.” Marek was looking around at the interior. The dull strips, he now saw, were plastic-covered openings. Behind the plastic he saw lights, small whirring machines. The air became noticeably cooler.

“We’re calibrating now,” Gordon said. “Try not to move.”

Suddenly, the individual strips around him began to rotate, the machines clicking. The strips spun faster and faster, then suddenly jerked to a stop.

“That’s good. Feel all right?”

“It’s like being inside a pepper mill,” Marek said.

Gordon laughed. “Calibration is completed. The rest is dependent on exact timing, so the sequence is automatic. Just follow the instructions as you hear them. Okay?”

“Okay.”

A click. Marek was alone.

A recorded voice said, “The scan sequence has begun. We are turning on lasers. Look straight ahead. And do not look up.”

Instantly, the interior of the tube was a bright, glowing blue. The air itself seemed to be glowing.

“Lasers are polarizing the xenon gas, which is now being pumped into the compartment. Five seconds.”

Marek thought, Xenon gas?

The bright blue color all around him increased in intensity. He looked down at his hand and could hardly see it for the shimmering air.

“We have reached xenon concentration. Now we will ask you to take a deep breath.”

Marek thought, Take a deep breath? Of xenon?

“Hold your position without moving for thirty seconds. Ready? Stand still — eyes open — deep breath — hold it. . . . Now!”

The strips suddenly began to spin wildly, then one by one, each strip started to jerk back and forth, almost as if it were looking, and sometimes had to go back for a second look. Each strip seemed to be moving individually. Marek had the uncanny sense of being examined by hundreds of eyes.

The recorded voice said, “Very still, please. Twenty seconds remaining.”

All around him, the strips hummed and whirred. And then suddenly, they all stopped. Several seconds of silence. The machinery clicked. Now the strips began to move forward and back, as well as laterally.

“Very still, please. Ten seconds.”

The strips began to spin in circles now, slowly synchronizing, until finally they were all rotating together as a unit. Then they stopped.

“The scan is completed. Thank you for your cooperation.”

The blue light clicked off, and the hinged door hissed open. Marek stepped out.

:

In the adjacent room, Gordon sat in front of a computer console. The others had pulled up chairs around him.

“Most people,” Gordon said, “don’t realize that the ordinary hospital MRI works by changing the quantum state of atoms in your body — generally, the angular momentum of nuclear particles. Experience with MRIs tells us that changing your quantum state has no ill effect. In fact, you don’t even notice it happening.

“But the ordinary MRI does this with a very powerful magnetic field — say, 1.5 tesla, about twenty-five thousand times as strong as the earth’s magnetic field. We don’t need that. We use superconducting quantum interference devices, or SQUIDs, that are so sensitive they can measure resonance just from the earth’s magnetic field. We don’t have any magnets in there.”

Marek came into the room. “How do I look?” he said.

The image on the screen showed a translucent picture of Marek’s limbs, in speckled red. “You’re looking at the marrow, inside the long bones, the spine, and the skull,” Gordon said. “Now it builds outward, by organ systems. Here’s the bones” — they saw a complete skeleton—” and now we’re adding muscles. . . .”

Watching the organ systems appear, Stern said, “Your computer’s incredibly fast.”

“Oh, we’ve slowed this way down,” Gordon said. “Otherwise you wouldn’t be able to see it happening. The actual processing time is essentially zero.”

Stern stared. “Zero?”

“Different world,” Gordon said, nodding. “Old assumptions don’t apply.” He turned to the others. “Who’s next?”

:

They walked down to the end of the corridor, to the room marked TRANSIT. Kate said, “Why did we just do all that?”

“We call it prepacking,” Gordon said. “It enables us to transmit faster, because most of the information about you is already loaded into the machine. We just do a final scan for differences, and then we transmit.”

They entered another elevator, and passed through another set of water-filled doors. “Okay,” Gordon said. “Here we are.”

:

They came out into an enormous, brightly lit, cavernous space. Sounds echoed. The air was cold. They were walking on a metal passageway, suspended a hundred feet above the floor. Looking down, Chris saw three semicircular water-filled walls, arranged to form a circle, with gaps between large enough for a person to walk through. Inside this outer wall were three smaller semicircles, forming a second wall. And inside the second wall was a third. Each successive semicircle was rotated so that the gaps never lined up, giving the whole thing a mazelike appearance.

In the center of the concentric circles was a space about twenty feet across. Here, half a dozen cagelike devices stood, each about the size of a phone booth. They were arranged in no particular pattern. They had dull-colored metal tops. White mist drifted across the enclosure. Tanks lay on the floor, and heavy black power cables snaked everywhere. It looked like a workroom. And in fact, some men were working on one of the cages.

“This is our transmission area,” Gordon said. “Heavily shielded, as you can see. We’re building a second area over there but it won’t be ready for several months.” He pointed across the cavernous space, where a second series of concentric walls were going up. These walls were clear; they hadn’t been filled with water yet.

From the gangway, a cable elevator went down to the space in the center of the glass walls.

Marek said, “Can we go down there?”

“Not yet, no.”

A technician looked up and waved. Gordon said, “How long until the burn check, Norm?”

“Couple of minutes. Gomez is on her way now.”

“Okay.” Gordon turned to the others. “Let’s go up to the control booth to watch.”

:

Bathed in deep blue light, the machines stood on a raised platform. They were dull gray in color and hummed softly. White vapor seeped along the floor, obscuring their bases. Two workmen in blue parkas were down on their hands and knees, working inside the opened base of one of them.

The machines were essentially open cylinders, with metal at the top and bottom. Each machine stood on a thick metal base. Three rods around the perimeter supported the metal roof.

Technicians were dragging a tangle of black cables down from an overhead grid and then attaching the cables to the roof of one machine, like gas station attendants filling a car.

The space between the base and the roof was completely empty. In fact, the whole machine seemed disappointingly plain. The rods were odd, triangular-shaped, and studded along their length. Pale blue smoke seemed to be coming from under the roof of the machine.

The machines didn’t look like anything Kate had ever seen. She stared at the huge screens inside the narrow control room. Behind her, two technicians in shirtsleeves sat at two console desks. The screens in front of her gave the impression you were looking out a window, though in fact the control room was windowless.

“You are looking at the latest version of our CTC technology,” Gordon said. “That stands for Closed Timelike Curve — the topology of space-time that we employ to go back. We’ve had to develop entirely new technologies to build these machines. What you see here is actually the sixth version, since the first working prototype was built three years ago.”

Chris stared at the machines and said nothing. Kate Erickson was looking around the control room. Stern was anxious, rubbing his upper lip. Marek kept his eye on Stern.

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