From Subramaniam Divakaran
Articles on artificial day and night helping to maintain the quality of picked vegetables (29 June, p 17) and UV light keeping fruit mould-free (15 June, p 23) set me thinking. Domestic fridges could be fitted with LEDs of the right wavelength to maintain circadian rhythm, and a UV light in a fridge drawer could keep fruits mould-free.
Euless, Texas, US
