The handshake
Two hundred and twenty-five kilometres above the Atlantic Ocean. The seventeenth of July, nineteen seventy-five. Two ships are about to meet.
One is called Союз. It was built outside Москва, in a town named Королёв. On board: Алексей Архипович Леонов, commander, the first human being ever to leave a spacecraft and float free in space. With him, Валерий Николаевич Кубасов, flight engineer.
The other is called Apollo. It was built in Houston, Texas. On board: Thomas P. Stafford, commander. With him, Vance D. Brand, command module pilot. And Donald K. "Deke" Slayton, docking module pilot — one of the original Mercury Seven, who had waited sixteen years on the ground for his first flight, because of a heart murmur the doctors finally cleared.
The two crews had never met in person. They had trained together only through translators, through letters, through the slow exchange of recordings. The Союз crew kept a notebook in Russian; the Apollo crew kept a notebook in English. The notebooks held the same drawings, traced from the same agreement, in different hands and different alphabets.
The two workshops had never stood beside each other either. They had never shared a hallway, a canteen, a coffee pot. In Королёв the engineers wrote мм after their numbers; in Houston they wrote in. In Королёв the technical drawings were stamped СЕКРЕТНО along the bottom edge; in Houston they were stamped CONFIDENTIAL. They drew with different pencils, on different paper, in different cabinets, in different cities, on different sides of an ocean. They tightened bolts in different directions. They breathed different air pressures inside their ships. The doors opened the other way. The words for bolt and door and air were different words.
But the work was the same work. The work was the work of getting people into space and bringing them home. It is one of the oldest trades on the planet — older, in spirit, than the engineers who do it now. It belongs to a guild that has no membership card and no headquarters, only a question that every member asks: can we get there, and can we come back. Королёв and Houston are two workshops of that guild. There are others. There will be more.
The two workshops had decided, three years before the flight, that on the seventeenth of July, nineteen seventy-five, their ships would meet in space.
So they sat down to talk.
They could not bring much with them. They could not bring drawings — drawings would have been a hundred crates each, and most of what they contained had nothing to do with the meeting. They could not bring instruments. What they could bring was a question.
The question was this. If your ship and our ship are going to dock in space, what do they need to agree on?
They wrote down the answer. The list was very short.
The two docking rings would have to be the same diameter, give or take half a millimetre. The rings would have to lock together by turning in the same direction. The hatch would open into a small chamber where the air pressure could be slowly equalised before either side opened their inner door, because if one ship's air rushed into the other ship's air, somebody would die. The hatch handles would have to be reachable from both sides. The chamber would have to be big enough for a person to float through, even a tall person.
That was the whole agreement. Five things.
Inside that agreement, both sides were free.
Королёв could keep its millimetres. Houston could keep its inches — as long as the ring still measured what the ring had to measure. The metals could stay different. The languages could stay different. The cabin pressures could stay different — as long as the chamber in the middle could equalise them. The textbooks could stay different. The food in the canteen could stay different. The histories of the two workshops could stay everything they were. None of that was on the list. None of it had to be.
Both sides went home. Both sides built their half of the ring. Both sides tested their half against a model of the other side's half — a small wooden crate carrying a small metal disc, sent across the ocean in the post. The crates were small. The discs were small. The agreement was small.
The ships were enormous. The achievement was enormous. The history behind the achievement was enormous. None of that mattered, because the agreement was not about ships or workshops or histories. The agreement was about the place where they would meet.
In the place where they would meet, both sides were the same shape.
That was enough.
At 16:12 UTC, the rings touched. They locked. A small light went on inside Союз. A small light went on inside Apollo. The chamber pressure equalised, slowly, the way the engineers had agreed it would. The first hatch opened. Then the second. Tom Stafford floated through into Союз. Алексей Леонов was waiting on the other side. They shook hands.
The handshake lasted three seconds. It was televised in two countries and watched in many more. In Houston it was the middle of the morning. In Королёв it was late evening. In both rooms, and in many quieter rooms in many other cities, the people watching went quiet at the same moment. There was nothing to say. The work had succeeded. The two workshops had become, for that evening, one room.
This was not a miracle. This was an agreement. Five things, written down, kept exactly.
The same agreement, in smaller forms, holds at every smaller scale on the surface of the Earth.
The thread on a water tap, in any kitchen on any continent, is one of two sizes. The plumber who installs your tap can come from any country and any decade. The tap she puts on your sink will fit your pipe. She will not know who made the pipe. She will not need to know. The thread is the agreement.
The plug on a USB cable will fit any port that calls itself USB, anywhere on the planet, at any time since the year nineteen ninety-six. The phone in your pocket and the printer in your office and the keyboard on your desk and the camera on your bookshelf were built by different workshops in different cities in different decades, and not one of them knew that the others would exist. They all agree on a small piece of plastic at the end of a wire. The plug is the agreement.
The track of a railway, in continental Europe, is one thousand four hundred and thirty-five millimetres between the rails. Trains built in France can run on tracks laid in Poland. Tracks laid in Spain do not match — Spain chose differently, a long time ago, for reasons that made sense at the time, and Spain has been paying for the choice ever since. The gauge is the agreement, where it holds. Where it does not hold, you can see the cost.
A shipping container, on any port in the world, is one of three lengths and one width. The crane that lifts the container in Rotterdam fits the same corner as the crane that lifts it in Singapore and Shanghai and Cape Town. The corners are agreed. Inside the container, anything. Outside the container, the agreement.
Each of these things — the docking ring, the tap thread, the USB plug, the railway gauge, the container corner — is a place where strangers meet. The strangers do not know each other. The strangers do not need to know each other. They have agreed on the shape of the place where they will meet. Inside that shape, they are free. The shape is the agreement.
The shape does not say what to ship. The shape does not say where to go. The shape does not say who you are or what you are carrying or why you are carrying it. The shape only says: at this point, where my edge meets your edge, we are the same.
That is enough. That has always been enough.
The trade is older than its tools. The plumber who fits your tap belongs to a guild that runs back through every kitchen in every house on every street in every century since people first ran water through pipes. The shipwright in Rotterdam belongs to a guild that runs back to the first wooden hulls. The engineers in Королёв and Houston belong to a guild that began the day someone first looked up.
None of these guilds has a membership card. None of them has a headquarters. They have agreements. Small ones, written down, kept exactly. And inside those agreements, every workshop on the planet is free.
Somewhere, while you are reading this, a phone in a pocket and a printer on a desk are meeting for the first time. They have never seen each other before. They were built in different workshops in different decades. The phone holds a photograph the printer is about to print.
A small piece of plastic at the end of a wire is the place where they will meet.
The plug fits the port. A small light goes on. The work begins.
Nobody is in the room.