The diameter of the earth may me measured by telescopes on opposite sides of the Earth, at the time of an observable phenomena, such as the transit of (say) Venus across the Sun's disk.
This was an important aim of James Cook's voyage to the South Pacific in the 18th century.
It is a seismograph
A barometer is an instrument used to measure atmospheric pressure.
Magnetometer
A seismometer.
It may have been the Chinese inventor's Zhang Heng's seismoscope .
A set of calipers.
Vernier caliper
A manometer instrument is used to check the alignment of two shafts.
Astronomers use a variety of instruments such as telescopes and radar to measure the diameter of planets. One commonly used instrument is a laser range finder, which can be used to determine the size of a planet by measuring the time it takes for a laser beam to bounce back to Earth after being pointed at the planet's surface.
Kilometers are typically used to measure the diameter of Earth, as it is a larger unit of measurement that better represents the size of the Earth. The diameter of Earth is approximately 12,742 kilometers.
The instrument used to measure the diameter of spherical objects is called calipers.
A Vernier caliper, or a micrometer can measure diameter real well, and from that it's easy to calculate area.
A vernier caliper or a micrometer can be used to measure the internal diameter of a beaker. These tools provide accurate measurements of dimensions, including internal diameters, with precision.
A seismometer is the instrument used to measure waves, such as seismic waves, within the Earth. This device detects and records the vibrations caused by seismic events like earthquakes. Seismometers are essential tools for studying the structure and properties of the Earth's interior.
Calipers measure the internal or external dimensions of something.
No. The instrument used to measure wind speed is an anemometer.
The instrument which is used to measure snowfall is called a snow gauge.