Then machines at ground level sent spurts of - plastic?

"The machine that's here today can send a message back to itself yesterday," Murdoch said.

Abe figures out that the machine can send an object back in time.

But experts worried about the spread of the bomb say the proposed machine could send a bad international signal.

"Let the machine send this smell over and over," she said.

We no longer understand what the machines are sending to each other, and the rate of transmission has been increased two hundred times.

The list was looped, so the last machine would send the packet back to the first.

That machine finally sent the message to me, at the computer at which I composed it.

For instance, if one machine was sending a large file, the other end would only send back a small amount of information, the and messages.

They might also have a machine send energy (radiation) into the breast.