Consumer TechHardware

Making Contact - Danielle George's 2014 Christmas Lectures 2/3

The Royal Institution
The Royal Institution•Mar 10, 2026

Why It Matters

The lecture shows that affordable, DIY hacks can lay the groundwork for immersive telepresence, promising new avenues for remote collaboration, healthcare, and personal connection in a globally distributed world.

Key Takeaways

  • •Everyday tech can be repurposed for immersive, multi‑sense communication.
  • •Sensor‑filled gloves enable remote hand gestures and tactile feedback.
  • •Simple camera hacks transform phones into macro lenses for detailed imaging.
  • •Recreating Bell’s 1875 telephone illustrates fundamentals of sound‑to‑electric conversion.
  • •Holographic projection combined with touch aims to bridge physical distance.

Summary

Danielle George’s 2014 Christmas Lecture explores the future of communication by hacking three everyday components – the light bulb, the telephone and the motor – to demonstrate how we might interact beyond sight and sound. She begins with a live video call to an astronaut, then introduces a robotic hand controlled by a sensor‑filled glove, illustrating how tactile feedback could be transmitted across vast distances.

The lecture walks through a recreation of Alexander Graham Bell’s first telephone, showing the basic principle of converting sound vibrations into electrical signals. George then demystifies smartphone cameras, explaining CMOS sensors pixel by pixel and revealing a simple macro‑lens hack using a disposable‑camera lens and Blu‑Tack to achieve extreme close‑up detail. These demonstrations underscore how ordinary devices can be repurposed for sophisticated sensing and imaging.

A highlight is the attempt to beam TV presenter Dallas Campbell into the auditorium as a hologram, coupled with a glove‑based handshake, embodying the dream of multi‑sensory telepresence. George’s playful interaction – inviting audience members to “hold my hand” through the robotic prosthetic – brings the concept of remote touch from theory to palpable experience.

The broader implication is clear: by leveraging low‑cost, widely available hardware, engineers can prototype immersive communication tools that may soon enable remote hugs, shared meals, and collaborative workspaces, reshaping how businesses and families stay connected across continents.

Original Description

Inspired by Alexander Graham Bell, Danielle George attempts to beam a special guest into the theatre via hologram, using the technology found in a mobile phone.
When Scottish inventor Alexander Graham Bell demonstrated the first telephone in 1876, he could never have dreamed that in 2014 we’d all be carrying wire-free phones in our pockets and be able to video chat is crystal clear HD across the world.
In this lecture, Danielle explains how these technologies work and shows how they can be adapted to help keep you connected to the people around you. She shows you how to control paintball cannons with a webcam and turn your smartphone into a microscope whilst also investigating a device that allows you to feel invisible objects in mid-air.
About the 2014 CHRISTMAS LECTURES
A revolution is happening. Across the world people are taking control of the devices we use every day, customising them, creating new things and using the sparks of their imagination to change the world. Now it’s your turn, and you can start with the things you have around you.
Electrical and electronics engineer, Danielle George takes three great British inventions – a light bulb, a telephone and a motor – and shows you how to adapt them and transform them to do extraordinary things. This is tinkering for the 21st century, using the full array of cutting edge devices that we can lay our hands on: 3D printers, new materials, online collaboration and controlling devices through coding.
Inspired by the great inventors and standing on the shoulders of thousands of people playing at their kitchen table or in their shed, Danielle announces the new rules of invention and shows you how to use modern tools, technologies and things from your home to have fun and make a difference to the world around you.
Anything could happen. Sparks will fly.
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Chapters:
00:00 Calling an Astronaut: Communication in Space 🛰️
02:50 The Future of Touch: Robotic Hand Demo 🤖
05:32 Hacking Alexander Graham Bell's Original Phone ☎️
08:24 The Grand Challenge: Building a Live Hologram 📽️
10:15 The Secret Science Inside Your Smartphone Camera 📸
15:35 AI Experiment: High-Speed Paintball Tracking 🔫
20:01 Fiber Optics: Sending Data at the Speed of Light ⚡
25:00 VR Challenge: The Champagne Rollercoaster 🎢
34:10 The Reveal: Beaming a Live Hologram into the Room 🌫️
40:08 Haptic Tech: Feeling Objects That Aren't There 🐄
48:11 Digital Senses: Testing Electric Lollipops & Smartphone Smells 🍭
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