Lightspeed: Year One

(Later) The techs were astonished, ecstatic. I demonstrated a pull of 90 kilograms. I know if I’d actually given it a good yank, I could have pulled the stress machine out of the wall. I’ll give them 110 tomorrow and inch my way up to 125.

Obviously I must be careful with force vectors. If I put too much stress on the normal parts of my body I could do permanent injury. With my metal fist I could certainly punch a hole through an airlock door, but it would probably tear the prosthesis out of its socket. Newton’s laws still apply.

Other laws will have to be rewritten.

24 September 2058

I got to work out with three waldos today. A fantastic experience!

The first one was a disembodied hand and arm attached to a stand, the setup they use to train normal people in the use of waldos. The difference is that I don’t need a waldo sleeve to imperfectly transmit my wishes to the mechanical double. I can plug into it directly.

I’ve been using waldos in my work ever since graduate school, but it was never anything like this. Inside the waldo sleeve you get a clumsy kind of feedback from striated pressor field generators embedded in the plastic. With my setup the feedback is exactly the kind a normal person feels when he touches an object, but much more sensitive. The first time they asked me to pick up an egg, I tossed it up and caught it (no great feat of coordination in lunar gravity, admittedly, but I could have done it as easily in Earth-normal).

The next waldo was a large earthmover that Western Mining uses over at Grimaldi Station. That was interesting, not only because of its size but because of the slight communications lag. Grimaldi is only a few dozen of kilometers away, but there aren’t enough unused data channels between here and there for me to use the land-line to communicate with the earthmover hand. I had to relay via comsat, so there was about a tenth-second delay between the thought and the action. It was a fine feeling of power, but a little confusing: I would cup my hand and scoop downward, and then a split-second too late would feel the resistance of the regolith. And then casually hold in my palm several tonnes of rock and dirt. People standing around watching; with a flick of my wrist I could have buried them. Instead I dutifully dumped it on the belt to the converter.

But the waldo that most fascinated me was the micro. It had been in use for only a few months; I had heard of it, but hadn’t had a chance to see it in action. It is a fully articulated hand barely a tenth of a millimeter long. I used it in conjunction with a low-power scanning electron microscope, moving around on the surface of a microcircuit. At that magnification it looked like a hand on a long stick wandering through the corridors of a building, whose walls varied from rough stucco to brushed metal to blistered gray paint, all laced over with thick cables of gold. When necessary, I could bring in another hand, manipulated by my right from inside a waldo sleeve, to help with simple carpenter and machinist tasks that, in the real world, translated into fundamental changes in the quantum-electrodynamic properties of the circuit.

This was the real power: not crushing metal tubes or lifting tonnes of rock, but pushing electrons around to do my bidding. My first doctorate was in electrical engineering; in a sudden epiphany I realize that I am the first actual electrical engineer in history.

After two hours they made me stop; said I was showing signs of strain. They put me in a wheelchair, and I did fall asleep on the way back to my room. Dreaming dreams of microcosmic and infinite power.

25 September 2058

The metal arm. I expected it to feel fundamentally different from the “social” one, but of course it doesn’t, most of the time. Circuits are circuits. The difference comes under conditions of extreme exertion: the soft hand gives me signals like pain if I come close to the level of stress that would harm the fleshlike material. With the metal hand I can rip off a chunk of steel plate a centimeter thick and feel nothing beyond ”muscular” strain. If I had two of them I could work marvels.

The mechanical leg is not so gifted. It has governors to restrict its strength and range of motion to that of a normal leg, which is reasonable. Even a normal person finds himself brushing the ceiling occasionally in lunar gravity. I could stand up sharply and find myself with a concussion, or worse.

I like the metal arm, though. When I’m stronger (hah!) they say they’ll let me go outside and try it with a spacesuit. Throw something over the horizon.