Visual, interactivo, modular. El libro de texto multimedia para aprender la tecnología de la ESO. Más información.
Si quieres ver una miniunidad de muestra, haz clic en la imagen. Se cargará la miniunidad "El transistor" del capítulo "Electrónica analógica". Podrás utilizar la versión libre (avanzar o retroceder sin impedimentos) o la versión dinámica (tests intercalados). Al final de cada miniunidad hay un cuestionario que los alumnos pueden contestar por escrito.
“The countdown?”
A long pause. Then: “A weapon. Deployed by the Eurydice Accord, seventy years ago. They buried it out there in case someone figured out how to break the barrier before we were ready.”
The signal wasn’t static. It was a countdown. Someone—or something—had reactivated the Blocker remotely. When it fired, it wouldn’t just stop ships from going faster than light. It would collapse every active warp field within a hundred light-years. Instantly. Every colony ship in transit. Every courier drone. Every explorer lost between stars would blink out of existence. Billions of souls, gone between one heartbeat and the next. lightspeed blocker
But as the alarms faded, he noticed something strange. His neural interface was still receiving data from the Blocker’s final transmission. Not a distress call. A message, repeated on a loop, in a language older than human civilization:
“Override attempt detected. State your authorization.” “The countdown
Kael drifted toward the access hatch. His suit’s clock showed 47 minutes left.
“What was it keeping in ?”
He called his supervisor, Maven Croix. She answered with the rasp of someone who hadn’t slept in days.
