Chronometer

A precision clock. Electronic chronometers often use a highly accurate and stable crystal oscillator, followed by a string of multivibrators to reduce the crystal frequency to an ...

chronometer

Jewelry; General jewelry

A watch whose timekeeping has been tested and certified for maximum accuracy according to standards set by the Swiss Official Chronometer Control (Contrôle Officiel Suisse des ...

chronometer

Boat; General boating

A timekeeper accurate enough to be used to determine longitude by means of celestial navigation.

Robojelly

Science; General science

Robojelly is a hydrogen-powered robot desgined in the United States that moves through the water like a jellyfish. The robot is made of artificial muscles that when contracted, ...

titanoboa

Science; General science

Titanoboa is a genus of snake that lived approximately 58-60 million years ago. It is the largest snake ever discovered, reaching a maximum body length of 12-15m (40-50ft), ...

space

Science; General science

The area in which the whole Universe exists.The planet Earth, the Sun,the Moon, the stars are in space and this region is outside of the Earth's atmosphere.

space station

Science; General science

A large spaceship on which astronauts can live for a long time and that is designed to orbit the Earth like a satellite.

sunspot

Science; General science

They are cool places on the sun's surface caused by changes in the sun's magnetic field.

broadcast

Science; General science

To send out signals in the form of electromagnetic waves. Radio and television signals are broadcast by transmitters.

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Received pronunciation

Received Pronunciation (RP), also called the Queen's (or King's) English,[1] Oxford English,[2] or BBC English, is the accent of Standard English in ...