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 »
I love watching Science Live! Thank you so much Roger Billings!!!
I liked this episode my dad works with computers and radios
Another interesting episode of Science Live!
The science besides radios is so interesting
My dad works on computers
I like the part where Dr Tobias was talking about John Sullivan and his portion in 1970 and studies black holes. He studied a black hole out in space that was invisible also near the end they singed Wellerman song.
I love learning about space I hope they do more about the topic!
This is awesome. Thank you
Radios are very cool, nice science live!
How can some radios reach all the way around the world but I cant even get mine to reach from the back of the yard to my house?
Great episode I look forward to seeing these radio kits in the Acellus store.
I have been gardening recently. Are you able to do an episode about something in gardening that’s about science?
I have an antique radio that used to be my grandpas in my room, its one of my favorite items.
If they make fishing line with wires in it, how does the wire get in it?
Very cool. Would like to have a kit that can do either regular radio or r-51’s super radio, maybe with two circuits with a switch that switches from one to the other.
I love sushi! That’s so cool that they were inspired by sushi rolls.
The part about Wi-Fi was very interesting
The Proteges really know science!
Radios are so fun and good for big companies and stores
That’s so awesome that the computer chip is rolled up!
the part about Wi-Fi was very interesting
Learning more about the tuned radios was really fascinating!
I think having the radio available in the store is such a cool idea!
How big was the first model of the radio?
This was so interesting! Never knew how cool radios are
how is electricity made
I would love to see the radio in the Gold Store!
learning about Wi-Fi was really interesting
I love what you are doing with these science lives
Will mobile 📱 will be needed in the future?? I love these videos.
The evolution of radios is so interesting
learning about Wi-Fi was really interesting
Radios are cool
You can use a wire to transfer from different radio frequencies.
I love wifi because I can do acellus and my video games
This was a great science live, I find radios very cool!
The inside of radios are so cool!
Hello from Montana, I love these science lives!!!!
Woah, what a great video. I love Science
i watched this one twice
radios are so cool!
Science is awesome, what a great video!
I actually got a Radio/Cassette player for Christmas, and I loved it!
we still have a old radio in our house
I used to have a radio in my bedroom, I miss having it.
I loved learning about radios
The computer string is so tiny!
this is my favorite time of the week!!!!
Will cars fly in the future or will we need roads
I want to build one!
these videos are so interesting. this was the best part of my day.
This is really interesting information about radios! Can’t wait to learn more!
I love watching these lives
I remeber using a radio with my grandma when I was younger, and it’s crazy to see how much they changed.
the way radios have developed is so interesting
Such a great video!! Thank you guys.
I think tuned radios are pretty cool to be honest.
How much time did it take to make that?
The computer string was cool to watch
I loved the story Tobias told about Australia it was a very good story I learned lots!
What is the primary force that causes a ball to fall back to the ground after being thrown upwards?
This is one of the most educational and interesting parts of my week!
Radiowaves are very interesting
Whats the point of the computer stuff in the thread?
I love that I can learn new things from ScienceLIVE, I expected to find repeated information when I first started, but this is so cool.
Ai can help you in lots of ways
This was an amazing science live
I love to see how radios have elvoded over time.
Radios are so cool! Thank you!
I enjoyed learning about radios.
Never believe every thing on the internet.
i love these science lives
Loved this!! My question is will tune radios be a necessity in the future?
How long did it take them to make that radio, and honestly? Them ending with the sea shanty was hilarious. I also wonder if there’s a way to put the computer the size of a fishing string inside a watch?
the computer string!! so cool
I think radios are neat.
so cool learning about radios
My favorite part was how the transmitter broke 3 weeks later after the other 2
I love 💕 sciencelive it is so cool
You can not believe everything you see on the internet.
I loved this video I learned a lot about computers and Wi-Fi and this whole video was very funny and learning
The radios are cool i like how u can make it from home as well!
Enjoyed it this week.
I really want to try to build one of those radios with my dad.
to see the evolution of science is really amazing
Science live videos always make my day
So fun. My favorite science live.
one of my favorite episodes
Radios are really cool it was nice to learn about them
i liked r51 about the buterfiy
I love radio. It’s really cool, especially HAM radio because it doesn’t rely on the internet, cell towers, satellites or the power grid. So, in the event of emergencies it allows us to still communicate. It’s wonderful for search and rescue missions too.
Are radio going to be needed in the future?
thank you for science live this week!
I look forward to science live!!
When was the first radio made?
I love these videos and science.
I love that we have radio.
Woahh I would’ve loved to experience how to use a radio but we’re a phone generation now are we hahaha
I enjoy science live 😃
I wonder if tuned radios will be needed in the future?
That was really cool to learn about the radio
How did they made the microscopic computer?
Radio is very interesting, especially HAM radio. My grampa really loves it. It doesn’t rely on the internet, cell towers or power grid. So, in the event of an emergency, HAM radio allows us to still communicate. It’s also great for search and rescue.
Thank you for the educational video.
The boat skit and little history lesson on Radio waves was so peak
The computer thread looks like fishing wire, that’s really cool.
Great video, I think the tuned radio was very cool to learn about!!!
This lesson was so cool.
I like watching Science Live every week.
i love the jokes in the intro they are very funny
These videos are fantastic
Thank you for having the science live!
I never actually knew how wifi was made. I always like learning about how things were made in the science lives.
I love fishing. Can’t wait to see what’s to come for a smart fishing line.
Science live is awesome!
They made wire and they put rows of electronics inside the wire.
They tried burning it and tried to run over it and it still worked.
Science live rocks!!!
These are my favorite!
put the radio in the store. please!!!!
I LOVED this weeks live!!!
I like radios even though we can listen to music just about anywhere know
Hello, i really likes this video, super helpful and interesting
I love watching science live!
I liked the Area 51 part today.
I think its so cool that radios can be used even when two people are in different countries
I enjoyed learning more about the tuned Radio and Bil’s teacher should have encouraged innovation rather than shut him down by getting him expelled. Kids need teachers who will listen to their ideas.
these just keep getting cooler!!!
Wow I loved this one it was so entertaining!
I Think radio signals are really cool and very advanced tech
I enjoyed learning about the origin of Wi-Fi
tha thank you I just want to say thank you everybody for this episode your episode are so great thank you for giving me the great episodes guys glow in the dark it’s so cool and it’s so fun
Very interesting to learn about tuned radios!
hello from Texas
Thank you so much! It was very exciting to learn about tuned radios today. Always enjoy seeing what’s new every week. Abraham Lincoln is awesome
It’s true that everything on the internet is not always true
Really interesting I really liked this video
Science is so intreresting!
we’ll explained
This video was interesting. I love watching these videos!
Building a radio would be so much fun
I think that is really cool that you have finally implemented projects and science kits into the Acellus shop! I think it would also be really cool to do light bulb circuits, and a speaker that you can plug into a device with a headphone jack! Given it would require quite a lot of coins, but it would be fun to implement! Also, it is very interesting how they discovered Wi-Fi! I wonder if there will ever be a way to implement the thread-like wires into people who are paralyzed, to connect to a speaker, so it can decipher the signals their brain is sending, so they can communicate with the environment, and people around them.
Always love watching science live!
I didn’t realize you could make a radio that easily.
Comment A thread computer is crazy!
How did you get a connection from so far away?
This is a great reminder that failed experiements don’t really mean you failed.
I love science live I can’t stop watching
That’s so cool to learn about Wi-Fi and how it works.
I like learning about ciruits
I love listening to the radio
Would radios be needed in the future even if humans come up with something more useful and complex?
ready to learn something new today
The pirates were fun.
I saw a while ago that asl 2 wascoming. When will it be out to take? I just finished level 1.
Loved this live❤️
My favorite part of the science live is R 51
That is crazy that a thin thread, can have a computer in it!
Im so grateful to be able to watch these educating science lives
Is there a theoretical limit to how compact electronics can be? I’ve seen them getting smaller and smaller as time goes on.
How can radios have an better effect in the future
how is power made
Learning about sound was very fun. I also liked learning about Samuel Morse and the Morse code and the radio.
omg these videos just keep getting better!!
hi my name Ryron and I love science lab. It’s so interesting to watch and it tells me so much about science.
That computer strand looks like a piece of my hair and that makes me wonder do I have a computer in my hair?!
Do you think two-way radios will be on smart watches soon?
This episode was great! I loved it!
That is amazing i didn’t know radios could do that.
The radio was an invention toward communication, and was made very early in history.
wow that computer string was amazing!!
I wonder how much radios would change in the next few years.
Explained so well!☺️
Great Science Live. The Australian accent joke was really funny.
learning about black holes and tuned radios so amazing!
You learn something new every day!