155th over: India 446-9 (Mishra 21 Sharma 0) The umpires' light metre shows a reading of 9.6, which encourages an ET impression from the commentary box: "Bright light!" A good over from Flintoff, with Ishant Sharma now at the crease.
Although this genre had been sporadically practiced before his time, ʿUmar ibn Abī Rabīʿah was the first to perfect it with a light metre and an accurate emotional perception.
Andrew Strauss and Alastair Cook stride to the crease and find the umpires wielding light-metres.
Time is now defined by readily available clocks that use caesium atoms as their pendulums, while distance is specified in terms of the speed of light in metres per second (the caesium atoms having already provided the value of a second), and these days that speed can be measured with great accuracy using easily purchased equipment.
It will put into action Tower Bridge's new lighting system, involving 1,800 special energy-efficient LED lights, 2,000 metres of energy-efficient LED linear lights, 5,000 metres of cable and 1,000 junction boxes.
Meanwhile, the exit feels futuristic, even surreal; Dion Lee's newly commissioned crystal sculpture towers above you, sprinkling beads of light from four metres above.
He said: "Zulu Company asked repeatedly for us to engage the Javelin missile as they could see light about 100 metres from their position, which is why they were convinced they were soon to be attacked.
Moths may be drawn in towards a light from several metres away (Baker & Sadovy, 1978; Truxa & Fiedler, 2012; van Grunsven et al., 2014); this might alter local moth abundance and the composition of moth assemblages both in the vicinity of lights, and in the source habitats from which attracted moths are drawn (Fig. 2: concentration and ecological trap effects).
