Can I unlock my car using my head?

Can I unlock my car using my head?

From CrowdScience by BBC World Service

March 20, 2026 · 26 min

About this episode

The episode explores whether holding a wireless garage key to your head can increase its range, featuring listener experiments and expert insights.

CrowdScience listener Doug has been experimenting with holding his wireless garage key to his chin. Why? Because he's testing a strange trick of physics. The range of a key can apparently double when held against your head rather just being held in your hand. Could this really be true, and if so why? Presenter Caroline Steel goes on a wavy journey of self-experimentation with antennas. She follows the story of Doug as he wanders the streets of Calgary in Alberta, Canada testing the key on his head from different distances and even testing it on his dog Maura’s head. To understand the physics behind all this, Caroline meets Dr Lina Mohjazi, Lecturer of Autonomous Systems and Connectivity at the University of Glasgow and Guy Vandenbosch, Professor of Electromagnetic Radiation at KU Leuven University in Leuven, Belgium. Presenter: Caroline Steel Producer: Tom Bonnett Editor: Ben Motley (Photo: Hand holding a car key remote in front of a red car - stock photo Credit: vadishzainer via Getty Images)

People in this episode

Host: Ben Motley

Guests: Guy Vandenbosch, Dr Lina Mohjazi

Topics covered

  • physics
  • wireless technology
  • self-experimentation

Keywords

  • garage key
  • antenna
  • electromagnetic radiation

Mentioned in this episode

Products: wireless garage key

Places: Calgary, Alberta, Canada, Leuven, Belgium

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