RADIO CHOICE

THE Raspberry Pi is a gadget the size of a credit card that can be hooked up to a keyboard and monitor and used as a computer. Devised by Eben Upton as a way of getting a chip into every classroom for minimal outlay, this British-made device is a runaway success. Eben (pictured) is on THE LIFE SCIENTIFIC (RADIO 4, 9AM, 9.30PM) to talk about his vision to make computers accessible to all.

MOVING PICTURES (RADIO 4, 11.30AM) is a fascinating piece of radio. Cathy Fitz Gerald invites us to look online at a patchwork bedcover held in the Victoria And Albert Museum, then takes us through all the tiny pictures of everyday life in this needlework masterpiece.

A SOFT handshake is in some cultures the height of politeness and in others thought flabby and suspect. Kissing on a first encounter

is good manners in some countries and to be avoided at all costs in others. A new series of WORD OF MOUTH (RADIO 4, 4PM), opens with former diplomat Andy Scott, whose work involved greeting people in more than 60 countries, telling Michael Rosen and Laura Wright about the complex business of saying hello.

COMEDIAN Simon Evans returns with a new series about new ways of making money in the 21st century. SIMON EVANS GOES TO MARKET (RADIO 4, 6.30PM), manages to deliver a lecture on economics and a lot of laughs along the way.