Лю Цысинь - Ball Lightning

Once again, we looked at each other uncertainly. It was a common expression for us when Ding Yi was around.

“That’s right. I’ve got a plan. We can capture an unexcited ball lightning and store it.”

“Is that possible? We can’t even see them!”

“Listen to me. While you’ve been flying, I’ve been reading the background on these,” Ding Yi said, pointing at the two superconducting batteries next to him.

“What’s that got to do with ball lightning?”

“They can store unexcited ball lightning.”

“How?”

“Simple. Contact the thunderball with a superconducting lead, no thicker than half a centimeter, drawn from the battery’s anode, and it will be conducted into the battery and stored like current. It can be released from the cathode in a similar fashion.”

“Ridiculous!” I exclaimed. Ding Yi’s tricks had become intolerable, and I now regretted inviting him.

“It won’t be easy to do,” Lin Yun said, entirely serious. “We can’t see the bubbles, so how are we supposed to contact them?”

“Major, you’re a smart person. Maybe you should think about it a bit?” Ding Yi said with a sly grin.

“Maybe like this? We can see ball lightning in its excited state, so if we extend the lead to that position at the moment it vanishes, we’ll contact the bubble.”

“You’ve got to be quick, though, or the bubble will float away,” Ding Yi said, nodding. The sly smile remained on his face.

It took us a moment to realize what Lin Yun meant. “That’s risking death!” someone shouted.

“Don’t listen to his crap, Major,” Captain Liu said, pointing at Ding Yi.

“Captain, Professor Ding is a world-famous physicist and a CAS fellow. He deserves respect,” Colonel Xu said sternly.

Ding Yi laughed and waved a hand. “Doesn’t matter. I’m used to it.”

“Oh, I’ve got an idea! Dr. Chen, I’ve got to take you someplace right away,” Lin Yun said, leading me off.

Lin Yun said she wanted to take a look at something called a “feeler defense system,” and that the strangely named system would solve our safety problem. We drove four or five hours in the direction of Zhangjiakou and arrived at a dusty mountain valley crisscrossed by tracks in the ground. She told me this was the proving ground for the Main Battle Tank 2005.

A major wearing a tank soldier’s uniform ran over and told Lin Yun that the person in charge of the feeler defense system research group was temporarily indisposed, and asked us to wait.

“Please, have some water!”

He wasn’t carrying any. The water came by tank, two glasses held on a tray on the gun muzzle. As the huge vehicle crept slowly toward us, its barrel remained level regardless of how the tank’s body rose and fell, as if a powerful magnet was pulling it by the muzzle. Not a drop of water spilled out of the glasses. The armored corps officers nearby laughed merrily at our surprise.

The MBT 2005 was quite different from the tanks I had seen in the past: flat, angular, with practically no curves. The turret and body were stacked flat oblongs that gave an impression of indestructibility.

In the distance, a tank was firing as it moved. The blasts of its shells were painfully loud, and though I wanted to cover my ears, when I saw Lin Yun and the officers joking beside me, as if the loud noise didn’t even exist, I was too embarrassed to do so.

Half an hour later, we met the project director for the feeler defense system. He first took us to watch a demonstration of the system. We arrived at a small multi-barrel rocket launcher, where two soldiers were loading a rocket into the uppermost slot.

The project director said, “Anti-tank missiles cost too much to use for a demonstration, so we’ll use this instead. Properly pretested, it’s sure to hit the target.” He pointed to the rocket’s target, an MBT 2005 off in the distance.

A soldier pressed the launch button. Out roared the rocket, leaving a cloud of dust and smoke behind us. It trailed a flat arc of white tail smoke behind it in the air as it headed straight for the target. But just as the rocket was around ten meters above the tank, it appeared to have suddenly hit something, and its heading changed at once, veering off to smack headlong into the dirt less than twenty meters away from the tank. Since it wasn’t loaded with a warhead, it merely kicked up a small cloud of dust.

I found my surprise hard to express in words, but asked, “Is there some sort of protection field around the tank?”

Everyone burst out laughing. The project director said through his laughter, “Nothing so outlandish. You’re talking about something that’s only in science fiction stories. The principles of this system couldn’t be any more basic.”

I didn’t understand what he meant by “basic,” so Lin Yun explained: “The principle can be traced back to the time of cold weapons. Cavalry wielded lances that could block the enemy’s arrows, if struck correctly.”

Seeing that I still didn’t get it, the project director said, “We’re too far away, and it happened too fast, so naturally you didn’t see it clearly.” He led me to a nearby display and said, “Take a look at the high-speed camera.”

On the screen, the moment before the rocket struck, a thin pole shot like lightning from the top of the tank, like a long fishing pole. It precisely tapped the rocket’s nose and diverted its path.

The director said, “In combat, it’s sometimes possible to divert an incoming object, but that may cause it to detonate early. For low-speed anti-tank missiles and air-dropped bombs, the efficiency of this defensive system is excellent.”

“What an idea!” I said wholeheartedly.

“Hey, this wasn’t our idea. The concept of the feeler system was proposed by NATO weapons experts at the end of the 1980s, and the French first tested it successfully on their next-generation Leclerc tank. We’re only following in their footsteps.”

Lin Yun said, “Even though the principle of the system is simple, its target sensing and positioning system is highly advanced. Not only can the feeler hit the target in the shortest possible time, but it can select the optimum angle. It’s basically an intimate scale theater missile defense.”

Now I clearly understood Lin Yun’s intent. It was like the thing had been custom-made for us.

The project director said, “Major Lin gave us the details of your situation yesterday, and our superiors instructed us to cooperate closely with you. To tell you the truth, in the past I wouldn’t have given your research a second thought, but things are different now. When I was first exposed to the idea of the feeler system, I thought it was ridiculous, nothing more. I never imagined the success we’ve had. On the battlefield of today, only the stubborn will survive.”

Lin Yun said, “The biggest problem now is the length of the feeler. How long can you make it? It’s very dangerous for the helicopter to get too close to the thunderball.”

“The longest the feeler can be at present is ten meters. Any longer and it won’t be strong enough. But, for your purposes, there’s no strength requirement for contact, and your speed requirements might be one to two orders of magnitude less than ours. In my crude estimation, the feeler could be as long as twenty-five meters. But there’s one more thing: it can carry the superconducting lead you need, but apart from that you can’t affix anything to the tip.”

Lin Yun nodded. “That’s basically enough.”

On the way back, I asked her, “Do you really intend to do it? Isn’t that betting too much on Ding Yi?”

“We’ve got to give it a try. I think Ding Yi really is the person to make a breakthrough in ball lightning research. We’ve said before that this mystery won’t yield to conventional thinking. Now we’ve got some unconventional thinking, but you won’t accept it.”