Brighton Café Scientifique is Science for the Sociable!
Informal talks of about 30-45 minutes are given by experts in the field, at a level accessible to all. After a break, the talk is followed by a question and answer session, and open discussion on the topic of the evening.
We meet on the second Wednesday of the month, at 7:30 for 8:00pm start at the Latest Music Bar, Manchester St, Brighton BN2 1TF. Meetings are free, although a collection is taken to contribute to the running expenses of the organisation.
Our dates for 2018: Wed 10 Jan, Fri 16 Feb, Wed 14 Mar, Wed 11 Apr, Wed 16 May, Wed 13 Jun, Wed 11 Jul, Wed 12 Sep, Wed 10 Oct, Wed 14 Nov, Wed 12 Dec
The Measure of All Things, with Dr Laura Kent, National Physical Laboratory
Measurement is at the heart of all science and engineering. And progress in science and engineering is often linked to progress in metrology – the science of measurement. After all, if we cannot measure something then we cannot begin to understand it (science) or improve it (engineering).
Measurement is the quantitative comparison of an unknown quantity with a standard. In the International System of Units – the ‘SI’ – there are seven standard quantities called the ‘base units’: the second, metre, kilogram, ampere, kelvin, candela and mole. Some of these, such as the second, the metre and the kilogram, we encounter in everyday life. Amazingly all the physical measurements we make can be traced back to combinations of these ‘base units’.
In this talk Dr Kent will explain the how the International System of Units works, and why, from May 2019 scientists are planning subtle but profound changes in the definitions of four of these base units – the kilogram, ampere, kelvin and mole.
Dr Laura Kent is a Higher Research Scientist in Electronic & Magnetic Materials at the National Physical Laboratory, Teddington.