Nathan Lowell - Quarter Share

“Actually, it does, but we don’t have a separate filtering system for it. Not like the water. There’s a simple electrostatic field that the air is passed through when it first comes into the system. It snags all the dust and other particulates out of the air. Technically, that’s not a filter because a filter is a physical barrier, like when you make coffee. The weave in the paper has holes that allow the infused water to pass without permitting the grounds themselves. It’s the same idea with the water system although the chemical processing is a bit more complex.”

I nodded. “And because the air is passed through a field, and not a physical barrier, you call it scrubbing instead of filtering?”

“Exactly.” She nodded and smiled. “The scrubbers also grab any odd gases that make their way into the system. Those are usually byproducts from work on the ship like trace amounts of free esters, ozone, and so forth. The goal is to keep the proportions of oxygen, nitrogen, carbon dioxide, and trace gases consistent. The air coming into the system is high on carbon dioxide and low on oxygen so we feed it into the wet algae matrix where the algae absorb the carbon dioxide and produce oxygen. Have you ever noticed that the berthing areas don’t smell like a locker room?”

I nodded.

“The algae loves the stuff that makes that smell. It would reek if not for that.”

“Right, thanks, that helps.”

“Come on.” She turned and beckoned me to follow with a wave of her hand. “I’ll give ya the half-cred tour.”

For the next stan, she showed me the inner workings that kept our air and water clean. I expected to be disgusted by some of the processing. Sewage isn’t exactly appealing, but I found myself fascinated by the way the air and water systems intertwined on the ship. There was a certain amount of unrecoverable waste, but almost ninety-eight percent of the air and water was recycled. At each port, we topped off the elements that got lost, used up, or destroyed. I even got a perverse bit of entertainment out of the notion that coffee was continually recycled through the crew’s kidneys, down to environmental, and back to the mess deck where it started the cycle anew.

When we got to the algae matrices, the-makes-it-all-brown part of the doggerel became apparent. According to The Handbook , the algae were a blue-green variety but when they were wet, exposed to light, and healthy, it wasn’t green at all, but a kind of reddish-brown. The matrix itself, was actually a synthetic film that held each little alga suspended to maximize its surface exposure. My preconceived notions about tanks of blue-green pond scum were blown away.

I laughed out loud and she turned a quizzical eye in my direction. “I don’t know why, but I had this idea that I’d find big vats with bubbling slime.”

She grinned. “That’s a common misconception. The bacterial recovery tanks are the closest thing we have to fit that impression, but they don’t bubble. We actually have to aerate them to keep the aerobic bacteria alive, not the other way around.” She looked pensive. “Now if we could just find a use for the sludge…”

“Sludge? What do you do with it now?”

“We press it into blocks, freeze dry it, and give it away to planets that need terraforming material. It’s not worth selling, and we’re prohibited from jettisoning it.”

That struck me so oddly that I laughed again. “Are they afraid the galaxy will fill up?”

She shook her head. “No, actually, back in the thirty’s it was okay to just drop ’em out the airlock. The problem was that one wound up splattered across the main viewing port of a passenger liner.” She did a good job of keeping a straight face, better than I could have. “Rumor is that several members of the CPJCT Steering Committee were aboard at the time and didn’t fancy having their view ruined by streaks of spacer sludge.”

“Thanks, Brill. This has helped a lot.”

My break was over and I needed to head back to the mess deck so we said our goodbyes and she gave me a friendly wave as I headed out.

For the rest of the day I kept chanting, “Filter the water and scrub the air down, mix water and algae to make it all brown,” over and over in my head. Two days later, I took another practice test and passed. Not perfect, but it was the first passing mark I received on the engineering materials. I felt jubilant.

Darbat Orbital

2351-October-22

The final docking at Darbat Orbital was just as uneventful as leaving Neris. It felt rather strange that after spending practically my whole life on Neris I was going to visit a different planet-or at least its orbital. I confess I had a certain level of excitement at the prospect, although rationally I knew it couldn’t be all that different.

We set navigation detail right after lunch. Everybody got a good meal into them before we started the process and we spent the afternoon watch doing the actual docking maneuvers. We didn’t need bento-box lunches so there was no extra work. All Pip and I had to do was the normal post-lunch clean up and hang out until the ship was secured. Cookie planned for a small meal at 18:00 but he would need only one of us.

Cookie smiled when I asked about it. “If there are more than three people left aboard for dinner, besides the watch section and the first mate, I’ll be very surprised. First night in port is usually the quietest. You gentlemen split it up. We’ve got a four day port stay. Work it out between you and post it on the duty roster so I know who to look for.”

I was excited about docking, not because I planned to leave the ship, other than a stroll around to stretch my legs and see the sights a bit, but because it would feel good to have the relatively relaxed duty that came from having most of the crew ashore.

Finally, the announcement came, “ALL HANDS, SECURE FROM NAVIGATION DETAIL. SECURE SHIP FOR PORT OPERATIONS. THIRD WATCH HAS THE CONN.” We looked at each other and Pip grinned. I knew he was thinking about the bottles of Grishom in his locker. Cookie waved us out and we headed for the berthing area just in time to hear, “NOW, LIBERTY, LIBERTY, LIBERTY. HANDS NOT ON DUTY MAY LEAVE THE SHIP ACCORDING TO STANDING ORDERS AND ESTABLISHED PROCEDURES. NOW LIBERTY.”

A hooting cheer came from the berthing areas and we stumbled into a maelstrom of half clothed bodies, grinning faces, loud plans, brags, and general teasing. Pip and I jumped onto our respective bunks to free the floor space and plan.

“You go, Pip. I’ll take the duty tonight so you can get your business taken care of.”

“Thanks, Ish. I’ll come back for dinner tomorrow and you can take the next twenty-four?”

I nodded. I was in no particular hurry and I knew he needed to finish this deal and line up the next one. Of course, I was pretty sure he had another deal already in mind, but I didn’t pry.

I dug into my studies, but with so much noise in the berthing area, it was all but impossible to concentrate. I checked the cred balance on my tablet and saw that I’d been paid, and it looked like the right amount minus charges for dues, taxes, shipsuits and my running shoes. It didn’t seem like a lot for almost seven weeks’ work, but the share amount was half again more, so I couldn’t really complain. The share amount offset the deductions with a bit to spare, but I could see where doing a bit of private trading might pay off.

At 16:00 I went up to the mess deck to help Cookie with the evening meal. He really didn’t need me, but it gave me something to do away from the still noisy berthing area. I took a certain satisfaction draining out the two partial coffee urns, leaving the full one for dinner. It would be great to have an urn last for more than three stans at a time. I remembered my trip down to engineering with a grin as I thought about the filters below processing the black liquid that I drained away. Filter the water and scrub the air down…