Have you ever wanted to know the answers to the most popular questions about measurement or physics? What is the difference between metrology and measurement? Why is the science of measurement important? What are the laws of physics? What is physics and why is it important? How is physics used in everyday life?
An occasional leap second adjustment ensures our clocks reflect the Earth's rotation speed as accurately as possible.
Find out moreThe UK has committed to bringing all greenhouse gas emissions to ‘net zero’ by 2050, but what does this mean?
Find out moreGreenhouse gases in the Earth’s atmosphere are increasing. So how do we define and measure the greenhouse effect?
Find out moreMany aspects of the earth’s temperature can be measured, each with their own relevance and techniques.
Find out moreWhat role does ocean colour play in measuring climate change?
Find out moreNMIs realise, maintain and develop their country’s primary measurement standards.
Find out moreBoth are fundamental to human activity, but what’s the difference?
Find out moreThe meaning of 12am,12pm, midday, midnight and the 24-hour clock
Find out moreWhen used in measurement it is vital to use the correct word
Find out moreThere are no official definitions of the duration of spring, summer, autumn and winter, so what are the british seasons dates?
Find out moreAtmospheric pressure reduces with altitude for two reasons, both of which are related to gravity.
Find out moreBoth are used to describe mass and to compare substances
Find out moreWhat can you do to ensure you receive the correct time?
Find out moreThe definition of a vacuum is not precise but is commonly taken to mean pressures below, and often considerably below, atmospheric pressure.
Find out moreThe term g-force is used to convey values of force and acceleration.
Find out moreHistorically, there have been a variety of units of force and conversion factors.
Find out moreWe use these words on a daily basis, but do you really know the difference?
Find out moreAir density is used in many branches of science, engineering and industry andy can be measured in two broad categories, Indirect measurement or parametric method and Direct measurement.
Find out moreThere is no simple formula for converting between dew point and relative humidity.
Find out moreBoth devices measure pressure, but what’s the difference?
Find out moreWhat is emissivity? All objects at temperatures above absolute zero emit thermal radiation.
Find out moreA platinum resistance thermometer (PRT) contains a piece of platinum wire, whose electrical resistance is proportional to temperature.
Find out morePlatinum is one of the rarest and most precious metals. It is used to represent 70 year celebrations – birthdays, anniversaries and, recently, the Queen’s Jubilee.
Find out moreWant more detail? Delve into the subjects more deeply.
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