7 · en
Short, simple sentences with “device”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
A traffic light is a mechanical or electrical device used to control traffic.
The nurse handed him a steel device that looked like a small car jack.
Reasonably effective compasses and a device for measuring latitude called an astrolabe came into European hands from the Middle East around 1400 as well.
With the other hand, he takes a special device and imprints a tattoo on the animal's ear so that the investigators can follow the animal's movements. Finally, he weighs the specimen (an impressive 12 kilos) and releases it.
Patented by the American Thomas Alva Edison (inventor of the phonograph), the marvellous device was called a kinetoscope. It had been on sale for several months and cost a whopping 6000 francs (more than 120,000 francs today)!
Morse Code thus enabled the first modern mass communication device. This was the first time a message could travel faster than a messenger on horseback, greatly increasing the speed with which information could be shared and disseminated.
The ultrasound scanner, the diagnostic device so common today, with which obstetricians investigate the morphology of the foetus in the pregnant woman, is exactly that, a sonic eye, although in general the image leaves something to be desired and requires interpretation by a specialist.
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