La vida antes de la tecnología moderna
Desde los mapas de papel hasta los relojes ferroviarios, descubre cómo las herramientas de otras épocas moldearon el trabajo, los viajes y la comunicación.
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Questions with solutions-
1. Elige la respuesta correcta.
What was the role of the road signs?
Before satellite navigation, a driver used a paper map and road signs to follow an unfamiliar route.
- To help the driver match the surroundings to the map.
- To update the printed map whenever a road changed.
- To automatically adjust the mapped route when traffic increased.
Think about how the driver knew which town or intersection they had reached.
Show solution
- To help the driver match the surroundings to the map.
Signs provided names and directions that drivers could compare with their maps. The drivers still had to track their own progress.
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2. Elige la respuesta correcta.
¿Con qué conectaba principalmente el número de teléfono a la persona que llamaba?
A family's landline phone rang inside their home. Whoever was there could answer, but a family member who was out could not.
- A person wherever they traveled.
- A particular home.
- The public telephone closest to the family.
Piensa en lo que permanecía en un solo lugar.
Show solution
- A particular home.
El número de teléfono fijo de una casa estaba vinculado a un lugar, en vez de a un dispositivo que alguien llevaba consigo.
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3. Elige la respuesta correcta.
¿Cómo podía un lector encontrar libros sobre jardinería sin conocer ningún título ni autor?
Library catalogs once used drawers of cards organized by author, title, or subject. The cards gave details about books and their shelf locations.
- Look through the author cards for the librarian's name.
- Look through the title cards for a shelf number.
- Look through the subject cards under gardening.
El lector conoce el tema, pero no un libro en particular.
Show solution
- Look through the subject cards under gardening.
Las entradas por tema ofrecían una forma de descubrir libros según su temática. Los catálogos digitales siguen usando esta idea básica de organización.
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4. Elige la respuesta correcta.
¿Qué ventaja práctica ofrecía el papel carbón?
An office typist placed carbon paper between sheets. Pressing a typewriter key then left a mark on more than one sheet.
- Copies could be made while the original was being typed.
- Errors could be removed from every sheet without retyping.
- The document could reach another office as soon as it was typed.
Concéntrate en lo que ocurrió con las hojas que estaban debajo de la hoja superior.
Show solution
- Copies could be made while the original was being typed.
La presión transfería las marcas a las hojas inferiores, lo que evitaba un paso adicional de copiado. El papel carbón no enviaba documentos ni corregía errores automáticamente.
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5. Completa el espacio en blanco.
Before electric motors, some factories powered their machinery with waterwheels. These factories depended on ___ to keep the wheels turning.
- steady winds
- flowing water
- burning coal
Piensa en la fuerza que impulsó la rueda.
Show solution
Before electric motors, some factories powered their machinery with waterwheels. These factories depended on flowing water to keep the wheels turning.
El agua en movimiento proporcionaba la energía. Por lo tanto, el acceso a ríos adecuados influyó en dónde se construyeron estas fábricas.
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6. Elige la respuesta correcta.
¿Cómo afectaría esto a un viajero que planea continuar su viaje?
On long voyages, sailing ships depended heavily on wind. Calm weather could delay a ship even when its crew was ready to sail.
- They could predict arrival from the distance alone.
- They could treat the advertised arrival time as guaranteed.
- They would need to allow extra time between connections.
Considera si el viajero podía contar con una hora de llegada precisa.
Show solution
- They would need to allow extra time between connections.
El tiempo adicional reducía el riesgo de perder la siguiente etapa del viaje. Las condiciones del viento hacían que los horarios de navegación fueran menos predecibles.
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7. Elige la respuesta correcta.
¿Qué tipo de mensaje fomentaba este sistema de precios?
Telegraph services commonly charged senders by the word. News could travel quickly, but longer telegrams cost more.
- A brief message containing the essential details.
- A detailed message with plenty of background.
- A message that repeated each point for emphasis.
Cada palabra adicional aumentaba el costo.
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- A brief message containing the essential details.
Los remitentes a menudo omitían los saludos y los detalles adicionales. El desafío era mantener la brevedad sin perder el sentido esencial.
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8. Completa el espacio en blanco.
A photographer took pictures on film, with no digital preview. To check whether the finished pictures were sharp, the photographer usually had to wait until ___.
- the camera had been turned off
- the lens had been cleaned
- the film had been developed
Tomar una fotografía y poder verla eran etapas separadas.
Show solution
A photographer took pictures on film, with no digital preview. To check whether the finished pictures were sharp, the photographer usually had to wait until the film had been developed.
Normalmente, era necesario revelar la película fotográfica antes de poder ver los resultados. Los problemas podían hacerse evidentes solo después de que ya hubiera pasado la oportunidad de volver a tomar una foto.
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9. Elige la respuesta correcta.
¿Qué más tuvo que suceder para mantener las cuentas correctas?
A bookkeeper recorded sales figures and totals in a paper ledger. When a sales figure was corrected, the written totals stayed unchanged.
- Only the date beside the corrected sale had to be changed.
- Any totals affected by the correction had to be recalculated.
- The unchanged totals had to be copied onto a fresh page.
Piensa en qué cálculos usaron la cifra original.
Show solution
- Any totals affected by the correction had to be recalculated.
El papel conserva lo que alguien escribe; no actualiza los cálculos relacionados. Una hoja de cálculo puede hacerlo cuando sus fórmulas están configuradas correctamente.
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10. Elige la respuesta correcta.
¿Qué cambio en el control sobre el trabajo ilustra esto?
Many home-based weavers organized their work around household routines. In factories, workers shared a workplace and followed hours set by the employer.
- Workers gained more freedom to choose individual starting times.
- Workers could fit factory production entirely around household tasks.
- Employers gained more control over workers' daily schedules.
Fíjate en quién decidía cuándo comenzaba y terminaba el trabajo.
Show solution
- Employers gained more control over workers' daily schedules.
Los horarios de las fábricas ayudaban a coordinar a los trabajadores y la maquinaria, pero a menudo reducían el control individual sobre la jornada laboral.
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11. Elige la respuesta correcta.
Why did railways encourage the use of a shared standard time?
Towns once set their clocks by the local position of the sun. Railways connected towns, so one journey could involve several slightly different local times.
- To coordinate departures and arrivals across towns.
- To make noon match the sun's position exactly in every town.
- To make every train depart at the same moment.
Think about a timetable covering more than one town.
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- To coordinate departures and arrivals across towns.
A shared time system made schedules easier to understand and compare. It did not mean that every train left together or that every town had the same solar noon.
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12. Elige la respuesta correcta.
What does this comparison tell us about accuracy?
A printed newspaper usually had to wait until the next edition to publish a correction. An online report can be corrected much sooner.
- A report that can be edited needs less checking before publication.
- Faster correction does not guarantee that the original report is accurate.
- Editing a report ensures that all its earlier readers learn about the correction.
Separate the ability to fix an error from the ability to avoid one.
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- Faster correction does not guarantee that the original report is accurate.
Technology can speed up corrections, but checking facts remains important. People who saw the original report may never return to read the corrected version.