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Message three. "Yes Mr. Clemons, this is Angela Landry with the credit union. We noticed a lot of traffic on your debit card in St. Louis and then in Maryland over the past week and we just wanted to make sure it was authorized. Please contact us at your earliest convenience." End of message three. 

Message four. "Hi, Dr. Clemons. This is Colonel Ames from the BPP Workshop. You left before we got to talk further. Could you please contact me? My contact info is on the BPP website and in the agenda for the meeting. It was nice meeting you. Okay, bye." End of message four. 

Message five. "Hey Anson. Do you believe that crap about cutting the BPP? You bugged out of Goddard pretty quick man. I wanted to know what you thought. Didn't you tell me that you thought it would be good to get an astronaut as the BPP director? Boy, were you wrong. Oh well, call me. By the way, this is Matt Lake." End of message five.

Message six. "Son, this is your mother again. Where are you? Do you just not return your calls anymore? It wouldn't hurt you to come see us every now and then you know! Oh well bye for now. Call us when you get home." End of message six. 

Message seven. "Anson, have you gotten home yet? This is Rebecca. Jim is about to die to show you what he thinks we've done. He told me about your ribs. Hope you're okay. Call us when you get in. B'bye." End of message seven. 

Mom always did that when I was gone. I told her I would be out of town, but she still acts like I never told her about it. She does that every time. For a while I thought she might have Alzheimer's, but then I realized she just like stirring things up.

Matt Lake is a colleague of mine from New Mexico State University. We had collaborated on some papers before and were presently working on one. I was supposed to meet Matt for dinner after the meeting at Goddard. "I should get in touch with him and explain why I left," I thought out loud. Friday looked up as if I were talking to her. I just smiled back at her and reassured her that she was the prettiest cat in the whole universe. You have to do that. Cats are pretentious and need constant ego stroking.

I didn't know which message to respond to first. So, I replayed the fourth one six times more. Just to be sure.

CHAPTER 3

I picked up the phone. Then I put it back down. "Where is that damn agenda?" I said to myself. "Didn't she give me her business card on the plane?" After some scrambling through my bags and nearly knocking my copy of "MTW" (or Gravitation as it is so titled) off the coffee table and onto Friday, I found it. Friday looked at me like I was an idiot and then rolled over onto her other side. Once again, I reassured her that she was queen of all felines.

I started to pick up the phone again. It rang. I nearly jumped out of my skin. My ribs were getting better, but they still didn't like sudden moves. It rang again. Composing myself, I answered the phone.

"Uh, hello?"

"Anson, it's Jim."

"Yeah what's up? I just got yours and Rebecca's messages by the way."

"After you said something Sunday about having to suck the energy right out of spacetime itself for the warp field, I got to thinking. I went straight to the lab and haven't gone home since. I designed a couple of nanodevices that Rebecca is depositing in the vacuum chamber right now. It should be done and ready to test by the time you get here."

I wasn't sure what the hell Jim was talking about. I barely remember the hospital, much less a conversation about vacuum energy physics.

"Jim, slow down. What does this device do? And what -con-versation are you talking about?"

Jim gulped, or at least it sounded like he did over the phone.

"Anson, are you okay? It does just what you said it should do. Don't you remember talking about miniature pistons and such in the cab on the way from the hospital to the hotel?"

"No I do not!"

"Oh, well, you did and I paid close attention. Thank goodness. Anyway, it's a microscopic well to trap vacuum energy as an electric charge generated by a nanosized two-cycle piston system." I still wasn't sure what all this was about.

"Are you telling me that you have a design that will actually let you acquire energy from the vacuum using the Casimir effect?"

"Yes, uh, well, I think so. I calculate that it will capture about a microjoule per second."

I ran some numbers in my head real quick. "Let's see, a microwatt—and we need ten to the twentieth watts. That's ten to the twenty-sixth of these nano things. How small can you make them, Jim?"

"The prototype is about ten nanometers on a side."

"That's a cube one hundred meters per side!" I cried, excitedly. I calmed slightly and continued, "That's way too big! You couldn't get it in the Shuttle. It would have to be constructed in space. If it really works, we will have to either make them about twenty times smaller or figure out how to make them capture more energy. I will be there in about forty-five minutes. I want to take a shower first. I've been flying all day." I hung up the phone and turned toward the bedroom.

"Oh yeah, bye," I yelled over my shoulder at the already hung up receiver.

The twenty-minute drive to the lab gave me some time to think. The Casimir effect: an interesting phenomenon named after the guy who thought of it. The idea is that there is this vacuum energy all around us all the time at every possible wavelength. It behaves like normal electromagnetic radiation except that we don't notice it. It is kind of like a fish in water. The fish probably never notices the water around him, but he sees the things in it. We never notice the spacetime around us, but we see planets and stars and people and fish all around us. We pay no attention to the spacetime just like the fish pays no attention to the water.

Anyway, this spacetime around us consists of all this electromagnetic energy at all different wavelengths. This bright guy Casimir suggested that if somehow we could get two conducting plates and put them very close together. Say, less than some of these wavelengths, then the area between the two plates would shield out any energy that had wavelengths longer than the distance between the two plates. But, outside the plates, all of the energy at all of the bands would remain. In other words, there would be more energy outside the two plates than between them. Because of this, Casimir suggested that the two plates would be pushed together. The force pushing them would come straight out of the vacuum of spacetime itself! Cool, huh?

As micromachining became more developed over the past fifteen years or so, people started noticing that their machine parts (if they were made small enough) would stick together for some reason. Most of these guys attributed this "stiction" to static electricity; the same way a white sock sticks to your dress pants in a place that you don't notice until you see people pointing at you as you are walking down the street with a sock stuck to your butt or hanging out your pants leg. Jim and I had long thought that the "stiction" might be due to the Casimir effect instead of static electricity. So had a few of the other BPP scientists.

As I pulled into the parking lot of our lab at Research Park, I realized that I never returned Tabitha's call. "Oh well, wasn't sure what she wanted anyway," I muttered. When I got to the lab Rebecca was pacing outside the door to the lab. "Did you finish?" I asked.

"It's done. Did Jim tell you this is the fourth one I've sputtered today? No, he didn't, did he? Did he tell you neither one of us has been home in thirty-six hours? No, he didn't, did he?!"