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CrowdScience

Can we transfer electricity wirelessly?

CrowdScience

BBC

Science

4.81K Ratings

🗓️ 10 September 2021

⏱️ 35 minutes

🧾️ Download transcript

Summary

Pioneering physicist and inventor Nikolas Tesla dreamt of connecting the world up through wireless communication and power. Despite demonstrating he could transfer power short distances his longer distance experiments were considerably less successful. But CrowdScience listener, George from Ghana, wants to know if now - more than one hundred years after Tesla’s demonstrations - his dream of wireless power is closer to becoming a reality.

In countries where rugged landscapes make laying traditional power lines difficult and costly, could wireless electricity help connect those communities who are without mains power?

CrowdScience presenter Melanie Brown beams to reporters around the world who visit scientists now using state of the art technology to reimagine Tesla’s dream.

Alex Lathbridge is in Ghana and after meeting listener George he gently doorsteps a local electrical engineering lecturer to find out how electricity can ‘jump’ between two coils.

Reporter Stacy Knott visits start-up company EMROD in New Zealand who are developing ‘beamable’ electricity. She hears an electric guitar being powered from 36 metres away with no wires and finds out how they are using lasers to make sure they don’t harm any wildlife that might wander into the beam.

We then hear how wireless electricity could help fulfil the power demands of a growing electric vehicle market. Reporter John Ryan visits the town of Wenatchee where it has been electrifying its’ bus fleet and putting wireless chargers into the tarmac at bus-stops so that the busses can trickle charge as passengers get on and off.

Finally, we ask whether one day, the tangled knot of wires spilling out of our electronic devices will be but a thing of the past. Presented and Produced by Melanie Brown with additional reporting from; Alex Lathbridge, John Ryan and Stacey Knott

With contributions from; Prof. Bernard Carlson, Dr Samuel Afoakwa, Ray Simkin, Greg Kushnier, Andy Daga and Richard DeRock

(Photo credit: Getty Images)

Transcript

Click on a timestamp to play from that location

0:00.0

Take some time for yourself with soothing classical music from the mindful mix, the Science of

0:07.0

Happiness Podcast.

0:08.0

For the last 20 years I've dedicated my career to exploring the science of living a happier more meaningful life and I want

0:14.4

to share that science with you.

0:16.1

And just one thing, deep calm with Michael Mosley.

0:19.4

I want to help you tap in to your hidden relaxation response system and open the door to that

0:25.4

calmer place within. Listen on BBC Sounds.

0:30.3

This episode we are going to electrify you.

0:37.0

Now that's the evil scientist trope out the way.

0:42.0

Hello, I'm Melanie Brown and this is... Now that's the evil scientist trope out the way.

0:42.6

Hello, I'm Melanie Brown, and this is crowd science,

0:45.6

the show that turns your curiosity into audio adventures.

0:50.1

People from around the world

0:51.5

will be beaming into this episode to help answer a question from crowd science listener George.

0:56.3

Lucky for us, crowd sciences Alex Lathbridge was recently in Ghana, visiting family,

1:00.8

and was able to meet George at his home to hear his question in person.

1:05.0

Hello Kraut signs, my name is George from Quabinia,

1:11.0

Ghana.

1:13.0

My question is, can electricity ever be transmitted wirelessly?

1:18.0

Okay, so why do you have this question?

1:21.0

As an old man, I have seen the progress of technology over the years. Years ago, when I was a child going to school, there was nothing like a mobile phone. Now I'm here, I can call my brother in the UK in real time. Can you imagine what

1:36.8

electricity would do if we develop it along the same lines so people in the rural

...

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