1 mole of carbon

Exactly 12 grams of pure carbon-12 powder is ...

Wharenui

Wharenui is the Māori word meaning ‘big ...

Matariki (Pleiades) star cluster

Wayfinders have used the stars as a compass ...

A simple thermometer

Thermometers are used to measure the ...

A simple barometer

A barometer is designed to measure air ...

International prototype kilogram

The international prototype kilogram made of ...

Relationship between units

Table showing how five of the seven base ...

Huka Falls on the Waikato River

Waterfalls are often formed along faultlines ...

Dr Chris Sutton

On the 14 October 1999, as the Director of ...

Measurement

Leonardo Da Vinci’s Vitruvian Man is based on ...

Interacting cycles affect the ...

The climate system is extremely complicated ...

Historical units of measurement

This derivation of the Vitruvian Man by ...

Badge of BIPM

The badge of the International Bureau of ...

Grid cells

Three- dimensional climate models divide the ...

Satellite in space

Satellites collate information received from ...

Public standards of length

This plaque shows British imperial standards ...

A simple anemometer

Anemometers measure wind speed. The faster ...

Measuring luminosity

Luminosity can be represented in lux (lx) ...

BIPM brochure

Cover image from the brochure The ...

Weighing experiment

A watt balance experiment, consists of two ...

IPK housed in nested bell jars

The IPK (international prototype kilogram) is ...

Measuring electric current

1 ampere is the current in two very long ...

A simple rain gauge

This simple rain gauge can be constructed by ...

Improved resolution in climate ...

As computer processing becomes more powerful ...

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