Radio gaga

July 30, 2015

I was pleased to be informed by Jack Grove’s article “Tinkering helps to dial in the joy of learning” (Campus close-up, 23 July) that Saeed Reza Taghizadeh at London Metropolitan University is convinced that, for children, building your own radio is “still a fantastic thing to do”. In my boyhood I certainly tried to construct a crystal set but was dismayed to be told that the essential “cat’s whisker” did not require a real cat. Moving on to proper wirelesses involved trips to London’s Lisle Street, where shops sold off war surplus stuff for keen radio hams. I only managed to build a set that glowed and emitted a constant low-pitched noise known technically as “mains hum”. Nevertheless, visits to Lisle Street in Soho proved to be highly educational.

R. E. Rawles
Honorary research fellow in psychology
University College London

You've reached your article limit.

Register to continue

Registration is free and only takes a moment. Once registered you can read a total of 3 articles each month, plus:

  • Sign up for the editor's highlights
  • Receive World University Rankings news first
  • Get job alerts, shortlist jobs and save job searches
  • Participate in reader discussions and post comments
Register

Have your say

Log in or register to post comments