"Good. I'll get right on it and have Grigorii make a drawing as well." When Bernie had arrived at the dacha, he had been introduced to a secretary and an artist. Grigorii Mikhailovich was the artist whose job it was to take Bernie's descriptions and very rough sketches and turn them into usable drawings.

"Brandy can probably find out what I've done wrong. It's a darn good thing your brother stayed in Grantville. When I've finished the letter, I'll take a look through the books and stuff he sent. Maybe I can figure out how to explain gravity."

"Seriousness?" Natasha's voice was curious. "Don't they know what seriousness is?"

Bernie groaned. Then headed back to face the brain cases.

"Bernie Janovich, what is the center of gravity?" Pter Nickovich had been waiting impatiently while Bernie was out of the room. His English was not good and the discussion of gravity was more confusing than helpful. He knew there was something there because the notes he had received on flight mentioned gravity regularly. Center of gravity, specifically. He sat and thought, giving no sign how much it hurt him not to understand about gravity and how to fly. Finally, Bernie returned with the letters and Pter asked his question before the sewer system could distract them again.

"Hey, I actually know that one." Bernie grinned at Pter. "Cars need a low center of gravity for stability."

Pter just looked at him. As usual, Bernie hadn't explained anything.

Bernie lost his grin. "Okay. Try it this way. Bend over." Bernie bent over. "As your head moves forward, your rear end moves backward, otherwise you fall on your face. That's to keep your center of gravity over your feet." Bernie stood up again. "Try to balance something on one finger. It's the same thing. To keep it balanced you have to keep your finger under the center of gravity."

"You mean that center of gravity just means the point of balance?" Pter couldn't help his look of shock.

"The place where you would place the fulcrum?"

The outlander shrugged. "Pretty much."

Pter considered, then asked. "Then why does how high the center of gravity is matter?"

"There is other stuff besides gravity. Centrifugal force and stuff."

"Explain that, if you would." Pter tried not to grit his teeth. He knew he was close to something but wasn't sure what. He listened to Bernie's rambling explanation. It was there he knew, if he could just grasp it. The secret to everything. It came in bits and drabs . . . gravity was a force like centrifugal force.

Then another piece when Bernie squared his stance and had someone push from the side. The person pushing on him to try and over balance him was a force. The key came when he asked why they used rockets to get to the moon. "Why not wings?"

"No air in s.p.a.ce."

"Why not?"

"Gravity, dude," an obviously frustrated Bernie insisted.

Pter froze. He could see it in his minds eye. "How much does air weigh?"

"I don't know." Bernie shrugged. "It's pretty light; we can look it up. Uh . . . maybe not, but we can writeVladimir about it."

The outlander didn't realize. Howmuch air weighed didn't really matter. What mattered wasthat air weighed. That it had weight. It was pulled down to the ground by a force; water was, too, but more so.

They wouldn't have to look the weight of air up, Pter could think of several ways to work it out. Looking it up might be easier if it was in one of the books. The important point was that air had weight. That was how the balloons worked. That was how it all worked.

Vesuvius erupted. Russian words spewed forth. Bernie didn't understand. Didn't want to understand after he caught the Russian words for idiot and uncultured repeated several times. At least this time everyone was an uncultured idiot, not just Bernie. Which was a relief. Everyone, Pter included, everyone from Adam to Aristotle . . . especially Aristotle. Everyone in the entire history of the world, both histories. Only two exceptions could be made: G.o.d and Sir Isaac Newton. G.o.d for creating such a complex world from such beautiful simplicity and Sir Isaac Newton for understanding it.

"Don't you understand, you uncultured outlander? We can fly."

"What in blazes are you talking about?" Filip Pavlovich was not one to accept being called an idiot by much of anyone. "Of course we can fly, once we know how. If the outlanders from the future could do it we can learn to do it." He froze then. "You know how?"

"It's all forces don't you see . . . d.a.m.n Aristotle to the worst region of h.e.l.l. Innate desire. Natural tendency. Bah . . . it's forces. Water is heavy, air is light, the force of gravity works better on heavy than light, that's what makes it heavy."

Jeez, Bernie thought, you'd think he just found out that Jennifer Lopez was a sure thing.Bernie left the geeks to their talk. Somehow he couldn't stop grinning. These guys got such a charge out of this stuff.

Now if only he could get the plumbing to work.

That night, instead of the studying, Bernie watched as Gregorii Mikhailovich drew out another Rocky and Bullwinkle episode for Daromila. One of the other letters was one from her, pestering him about it.

And he had promised, after all. It was kind of hard, sometimes. Gregorii didn't like the dress the Natasha of the cartoons wore. He even blushed a bit.

The older he got, the less he slept. Filaret stalked around his room, thinking. They were on a dangerous path and he didn't think Mikhail realized just how dangerous it was. Mikhail was a good boy, but too gentle for the real world. Still, something he'd said kept coming back to Filaret.Knowledge, freely given.

Filaret had started the only print shop inMuscovy . Like most things, it was a royal monopoly. He had also been instrumental in starting schools in monasteries. Again a monopoly, this time of the church.

Giving things away didn't come naturally to him, especially something as valuable as knowledge. Freely giving knowledge had its drawbacks, didn't it?

But the more he thought about it, the better it sounded.Freely given. Charity. A gift to the poor. Alms of knowledge? What an interesting idea. The agreement with the Yaroslavich family was that the government could do what it wanted with the knowledge from the Dacha. It wouldn't do to give everything away. But some of it. . . . Things that would help a lot of people and would cost a lot to administer.A gift from the czar, granted freely to every citizen and serf inMuscovy . The right to make the turning plow. One of the new plows produced by the Dacha. And, of course, the Yaroslavich family could still sell the right to make the plow to anyone who would buy what had already been given them for free. It would serve as a reminder to the Yaroslavich family who was Czar. At the same time, it would remind everyone that even knowledge was the czar's to give and withhold at his will.

Boris stared. A flying ship. Not a little one that they talked about in Grantville, but something the nerds-Boris liked that word-at the Dacha were calling a half blimp. There were drawings, still rough sketches, rough estimates of carrying capacity, all of which seemed to agree that bigger was better to the extent that they could build bigger. Everyone in the section would have seen it by now. The rumors would be flying faster than the half blimp could travel. And he had to come up with a recommendation. How was he supposed to know if it would work? Meanwhile, he had dozens of requests for things he knew they could make. And suddenly hundreds of requests for transfers to his section. "Pavel, get in here."

Pavel came quickly enough. Boris smiled. Pavel looked nervous, as well he should. "You will be missing dinner at home again." Boris handed him the report. "Go out to the Dacha and find out about this."

"But, Papa," Pavel started to complain.

Boris cut him off. "I know all about the party at the Samelovich house. They want you to get their little Ivan a job in the section, but he doesn't speak English and the only thing I've heard he's good at is getting drunk. Make your apologies, but get out to the Dacha."

Boris put the rest of the reports in his case and headed for home.

Daromila was snickering again. Boris looked up, a bit bleary-eyed from reading reports. "Woman-" he put on his "stern patriarch of the family" voice. "-what are you on about this time?"

She snickered again. "Nothing, dear. Just a letter from Berna."

"Oh ho!" Boris puffed out his chest. "I shall have to have words with him. Stealing my wife's affections from me. That's what he's doing."

Daromila gave him a telling look. "Boris, dahlink," she said, using the same sultry voice Natasha occasionally used when she was teasing. "You know you are the only man for me."

Boris groaned a bit. Daromila and Natasha both teased him about the inept spy Bernie spoke of. "I never should have brought him here," he said mournfully. "I knew he was going to be a bad influence."

Daromila grinned. "Possibly more than you know." Then she wouldn't say more, just began writing another letter.

"So what is this Bernie like?" Czarina Evdokia took a sip of strong Russian tea.

"I'm not sure. He knows many things. He drops ideas without being aware of it, but . . ." Natasha hesitated. "I guess I was expecting some great philosopher. He is just a man. A workman. Much like the craftsmen on either of our estates." Natasha and the czarina were having a quiet lunch together.

Evdokia nodded. "That sounds like the little I saw of him at court. I find the possibilities of the future amazing." She stopped a moment. "Do you believe they sent someone to walk on the moon?"

Natasha considered. "Yes. I do believe it."

"Why?"

"Partly becauseVladimir confirms it in his letters, but mostly because Berna talks about it the way we would speak of Ivan the Terrible or the Mongol rule. Not a fantastic tale, just something that happened."

"Can you imagine? And women went, too. Russian women."

"Valentina Tereshkova.Vladimir wrote about her and Yuri Alekseyevich Gagarin. Berna didn't remember her name but didn't dispute that the first man and the first woman in s.p.a.ce were Russian."

Natasha paused and looked at the czarina. There was a look in Evdokia's eyes. A dreamy, hungry look.

To Natasha the fact that the first man and woman in s.p.a.ce were Russian was an interesting piece of information and made her feel good about being Russian. For the czarina, it seemed more somehow.

"I have always dreamed of flying," Evdokia's voice had a soft faraway tone. "Since I was a little girl.

Floating up to the clouds and looking down to see the whole world spread before me." She visibly pulled herself back from dreams of flight, but a bit of the smile lingered. "Child's dreams, but it warms me somehow that it was done, and by Russians first."

"Who knows?" Natasha offered. "What they, those people from the future, could do, we can learn to do. Pter Nickovich says we can fly. He thinks he understands gravity. You may fly yet."

Evdokia laughed a bit sadly. "Even if we learn to fly, it will not be allowed." Then she grinned with more joy. "It is a pleasant thought, though. Now tell me of the progress of the Dacha."

Natasha grinned as she began her report. "As I said, Pter Nickovich thinks he understands gravity.

Fedor is not convinced . . ." These weekly lunches were interesting. She would give a very unofficial report on the doings at the dacha. Then there were the letters from Grantville. Natasha almost always had a new one to share.

"Thank G.o.d," Bernie said when Natasha handed him the latest batch of letters. "There wasn't anything about plumbing in those books. I hope I've got an answer to that problem." Natasha had made a rare foray into the kitchen, searching for him. He was having his usual sandwich lunch.

Dear Bernie, Vic Dobbs says you left out the vent stack for your plumbing, that's the problem. Without the vent stack you get a build up of pressure in the septic system and it forces the dirty, yuck, water back up. He made a drawing to show you what you did wrong. He also said you'd probably never seen one, since they're usually inside the walls, so don't feel bad about it. This ought to fix the problem. Just in case,Vladimir has contracted to have several books on plumbing that Vic recommends scanned and reprinted. A couple had already been copied. They're included in this shipment and the others will be coming in the next batch.

I saw your father in town yesterday. He said to tell you h.e.l.lo and wants to know can he sell your car?

It's in the way, he said. He also said you should write him and your sisters. They want to hear from you, too.

Old Grantville is rocking along just fine right now. We've got, I swear, thousands and thousands of people around here now. It's so different from before.

Vladimirsays you're doing pretty well. I hope so. I bet it's a lot different than working on cars was. But then, who'd have ever dreamed I'd wind up working in a research center, of all things?

Well, gotta go. I need to have this done before I get to work so it can go in Vlad's pouch. Just let me know if you need any more information. Oh, and I hope you get this before the house blows up.

Best, Brandy * * *

"You have wood in your hair." Natasha grinned like she had caught him out. "Quite a bit of wood. What have you been doing out there in that shop of yours?"

Much to Natasha's surprise, Bernie went outside to shake off the wood shavings. "Sorry about that," he said when he came back to finish his lunch. "I didn't realize. I brushed myself off, but didn't know I had it in my hair. We were working on the pattern lathe. Finally got the setup for that connecting piece Ivan the Tolerable wanted." Bernie had gotten into the habit of giving various people at the Dacha nicknames.

"Now I need to talk to the guys about this vent stack thing. Maybe we can get the bathroom back in operation." Bernie gulped down the last of his sandwich and beer and rose from the table again. "Excuse me. I really want to get this fixed."

After Natasha left the kitchen the cook, Marpa Pavlovna turned to her a.s.sistant (and niece) Anna Stepanovna. "Did you see that? Have you ever seen one of 'them' worry about dropping anything on the floor? He may be a little strange in some ways, but he's not one of 'them.' How is your English coming, Anya? The quicker you learn, the sooner you'll be able to understand."

Anya shrugged. "Better. I understood nearly all he said, that time. I will be able to report it nearly word for word."

Marpa frowned. "He seems a good young man."

Anna stirred the contents of a pot and shrugged again. "Because he acts like a peasant?" At Marpa's look she continued. "The n.o.bles don't worry about mud on the floor because the servants can't box their ears for it. He seems much like any other man to me. Just not used to having power. He'll be just like the rest, given a little time."

Marpa began clearing the table. Anya was a hard one. Which was probably all to the good. They had a job to do, after all, and little choice about doing it. Their family's debts had been taken over by a man neither of them knew. Through his agents, that man had a.s.signed Anya the task of finding out everything she could about Bernie. It was not the first time Anya had been given such an a.s.signment. She was a very pretty girl with hair like spun gold and deep blue eyes. The very picture of innocence. Anya hadn't been innocent since the day she was born.

"Could you light a couple more candles?" Bernie smiled at the cook's a.s.sistant. "I can't tell you how much I miss good lighting, I really can't."

Anya decided to try it. It was late at night and almost everyone else was asleep. She had been about to lay down on the ma.s.sive stove when Bernie had stumbled in to the kitchen with a single candle and disturbed everyone. She nodded, and went for the candles.

The outlander went to another room and sat down at a table with a book. She knew that he thought sleeping on stoves was strange, but it made sense in a Russian winter. The amount of wood it took to heat the whole house was too much, a serious expense even for the wealthy and impossible for the poor.

Even with the improvements Yuri had suggested based on the books from Vladimir Petrovich Yaroslavich, it was still a lot of wood. Not as much, though. The Dacha now had cold air come down one side of the chimney, so it was warmed before it entered the house. The main rooms were warmer now.

Anya took Bernie Janovich more candles and lit them for him. "Good lighting?"

Bernie Janovich grinned. "You speak English? Wow, that's great."

"Only little." Anya struggled with the words a bit more than was really necessary. "I learn. You wish beer? I get beer."

"Just one for me, please. I'm going to study a bit more, then I've got to get some sleep. And have one yourself, if you like."

Anya wondered for a moment if she should, but decided she might as well. She went to the kitchen, poured two beers and placed one in front of Bernie Janovich when she got back.

He motioned toward a chair. "Have a seat. I get lonesome sitting by myself. And even if you don't understand everything I say, you're company." When Anya hesitated, he urged, "Come on. Have a seat."

Shrugging, she complied. Bernie Janovich was an important person even if he didn't know it. A complaint from him might anger her employer, both her employers. Besides, she was supposed to get close to him. He took a good look at her. Anya lowered her head and peeked at him from under her lashes. She wanted to show interest but not appear too easy to get. She needed him to work at seducing her. Throwing herself at him as some of the girls in the Dacha did would not get her what she wanted.

Then what did he do? He buried his nose in the book. What was wrong with the fool?