Tuned Radio
January 28, 2026 • EPISODE 295
How do radios tune in to specific stations? In this episode of Science LIVE, Dr. Roger Billings explores the tuned radio—how circuits are adjusted to select particular frequencies so we can hear one station clearly among many. Learn why tuning is essential for radio reception and how the first wireless radio signal crossed the Atlantic Ocean, launching a new era of global communication.
About DrB
Dr. Roger Billings is a visionary innovator whose work has touched the lives of millions of students and transformed the landscape of education. Widely known as “DrB” to the countless kids who benefit from his groundbreaking Acellus learning system, Dr. Billings has dedicated his life to advancing education through technology.
As part of DrB’s lifelong commitment to supporting education, Science LIVE was launched as a way to “give back” by mentoring students in conjunction with the Roger Billings Scholarship Program.
Read more about DrB »
About the Roger Billings Scholarship Program »
This was really neat to watch!
i love your lives so much
Hello from Illinois!
Love how this explains the science behind radio communication!
Thank you! I really enjoyed this video! 🙂
This episode was really good! Radios seem very intriguing.
Hello from Florida
I love watching these science lives each week.
cool inventions
Never knew that about radios!
I loved learning about the radio systems and how they were the starting tech for so many other systems.
It was fun learning how radios work.
Just watched the episode on radios , enjoyed it.
amazing one and thank you roger billings amazing program yall have.
this one was a banger keep the vids up dr B
Love the snow butterfly. We only got sleet and a little bit of snow.
Had to re watch this one its to funny. will tune radios be a necessity in the future?
hi from Tn
This was fascinating.
hello from TN
Is the thread similar to fiber optic or no? If not could you use it in glasses , binoculars, or scopes to manage distance and use a digital way to find position, distance, or even wind speeds.
The history of inventions was my favorite.
This is awesome
Radios are fascinating
i loved learning about inventors.
The way that radios work is interesting
My mom has a shortwave radio. So cool to hear broadcasts from far away
Amazing information, fascinating!
I still rewatch older episodes, are we able to always watch?
Great episode, I can’t believe how tiny the computer thread technology is!
Is a tuned radio diffrent to a original raido
I never knew what a frequency was until now.
Lux here from Tennessee
Science live never disappoints me! Weaving technology into fabric could be super cool, and learning about radios has been really interesting!
Are all the lives shot with a live audience?
It’s hard to think of what purpose smart clothes would have. Maybe monitoring you biometrics like heart rate and stuff.
Man I love radios so much when i was younger I would always build them out of my snap circuit kit.
This is very helpful and also really interesting.
I love science live!
It;s interesting that Mr. Lear thought of an idea to make the radio attenna significantly smaller and how that developed into the company Motorola. My father’s first cell phone was made my Motorola in the 1990s.
How did the invention of tuned radio circuits change communication, and why was the first transatlantic radio signal such an important breakthrough?
Radios are so interesting!
Thank you for another awesome video!
I enjoy learning from the Acellus videos!
I think its interesting that computer chips are placed within a thread.
Joshua: How to study with Acellus Gold
Dr. John: Inventing computer chips
Tobias: Black holes, Wi-Fi, new wireless inventions
Roger & Pajet: Learning about Tuned Radios
Radios are interesting, but now that we have streaming, does anyone still listen to the radio besides my mom?
I never relized how complex radios are to build
Its weird that Wi-FI isnt named after anything. It seems like it would be. I guess its just a catchy little name
The evolution of the radio was interesting – also love the entire episode
I really enjoyed the video; it thoroughly covered the stages of computer development
I loved this lesson!
There was this paper radio cardboard which had cords, and a speaker. And it also had a twisty thing that was R radio. I like that part the best. One thing that is important about radios is because you can send wifi signals with the cord and it also sends wifi signals with the sensors which go far. This was a long time ago.
Thank you for another great episode.
Does this mean I can have a T-Shirt that connects to Wi-fi?
Watching from New York.
I’m really enjoying looking at the history of commonly used technology. What are you going to cover next?
The inventioneers really did a good job helping the Proteges with making their own radio. Speaking of radio, Hertz really did a wonderful job discovering radio waves. An incomplete circuit that, with a single spark, causes electricity to jump from one end to the other end, creating radio waves and completing another incomplete circuit that had no power source sounds bizarre. But! It’s not magic, it’s science.
I listen to the radio every day
Radios are such a good invention
NICE LIVE DR.B
I loved learning about radios!
r51 is so funny
I love these can’t wait till next week
love science live lesson
I would like to create my own hamm radio.
I love music so I listen to the radio all the time.
Marconi’s persistence is inspiring!
This was a fantastic video, thank you Acellus
This was interesting to learn about the evolution of the radio!
Really cool looking inventions!
Incredible! I love science live!
This science live was really interesting!
Everything Science Live covers is interesting!
Wow this is so cool, thanks Mr. Billings
My mom loves AM radio 77WABC She tells me how important the radio is, even in this digital world!
wow, I love these i learn so much
These inventions are so cool!
Using the bigger stations weather report was very clever.
Interesting learning about radios!
Great live! Keep up the good work Roger billing’s and lady pajet Monet.
Hello from Texas
i enjoyed learning about history!
Thank you so much for putting all the work into these videos.
Crazy how they can put technology in your brain.
Thank you for all cool info on vaccum tubes and the evolution of computers!
Love the videos keep it up!
Thank you for teaching us how the tuning of a radio works.
I loved learning about the history of inventors!!
Hi from FL
this reminds me of those radio kits companies sell
the jokes at the beginning of the video were great, i also enjoyed learning about the history of inventors!
One thing I learned is computers use switches to remember are data.
Blue Monster Galaxy is such a cool name! Thank you for teaching us about the dark stars too!
So cool to hear about how they made the radio, which obviously, eventually evolved into online streaming, AKA my favorite thing.
R51, can you make me a super radio? Or teach me how to make one?
This was awesome thank you
I’ve always wanted to use a radio, this just goes to show how cool they are.
I love these!
A computer chip in a thread is crazy. Technology is advancing too quick.
radios are so cool to learn about
THUMBS UP
I love watching science live
I want to know more about the three dots. The s.
I always love listening to the jokes.
The way they can shift the metal rod to shorten the coil to get different frequencies was so smart and I loved the part with the snow butterflies.
I love the radio it is the best thing they have made!
Loved the jokes
The pizza joke was funny 😀
I never knew anything about how radios work
Learn why tuning is essential for radio reception and hoe the first wireless radio signal crossed the Atlantic Ocean, launching a new era of global communication.
I didn’t know radios were that cool!
How did they find the parts to make radio back then?
I’m learning so many new things.
Hi!
This was so interesting to learn about!!! Area 51 was so funny, like always!
it is cool to see how far radio has advanced
I love these videos please keep putting them out!
Great show love watching
I had no idea about the wi-fi name.
Thank you! I love watching these!
Amazing to have a computer in a thread, the applications are mind blowing. Loved the storey a out WiFi. I enjoy science live, thank you.
I love the Protégés, they are so funny.
John O’ Sullivan idea was cool though.