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 »
Amazing science live video today.
I love watching these videos, it’s always fun and interesting learning new things. Thanks.
so true
I loved this science live!
yes it was so good
i would love to have smart clothes
The black hole was incredibly interesting!
I’ve always wanted to learn about the radio. Great video!
so interesting about smart clothing and the progression of laptop/wifi technology
Blue Monster galaxies sound really cool
Thank you Acellus.
I love science live!
My dad talks on the CB radio!
Dr billings is cool
I love science live and i liked the leason about the radio.
this was very useful!
This was really cool
When will you put the led figet spinner back in stock?
I like the Radio idea
I loved this science live.
I loved hearing Dr. John’s lecture today. Computers are so cool!
I love watching these, it actually makes me more interested in topics I never thought I would think about till now!
I did not know that laptops were made in the 1990s. That is cool!!!!
I love the pirates. Fantastic acting!!!
How many people used radio in the 19th to the 20th century
This episode was very interesting
Can’t wait for next week
The Black hole is interesting
What is the computer thread called?
Wow this is so amazing
that is so cool that a teacher reached out from California
love it so much
yes I want the radio in the gold store!
i love these and i love how funny r51 is!
Its nice how the 1920s used a tuned radio and around the radio frequency (station) across multiple stages before detection.
How can radio wave be used in other ways?
i love science!!!
The R51 Radio, despite its flawed programming, is a very neat machine!
hey I love learning about this type of stuff
That’s so interesting. I laugh very much when hearing the part that: There were a boat…….. . The part that they sing.🤣*^____^*
yes it was so funny
I love Dr Billings
Technology, Coding… It’s really cool, I enjoy finding new ways to use technology to help my life.
I love learning! This live was awesome!
It would be cool with smart clothes
Science live is amazing!!
Loved learning about radio!
I <3 it
i love science
Another great week because of science live!
This was a cool episode!!
Who knew radios could be so interesting! The theory of radio waves just shooting to space make absolute sense.
These videos are so cool!
I would like to get a radio that I could get with gold coins please.
I never seen a winter butterfly!!!
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I’m so happy I love science live
I loved this science live!
This was an amazing class!
Science live yay R51 haha!😆
I love it so much make more you guys are so cool I want to become a scientist like you guys
Such a cool episode! R51 is so funny!
I would like to make the R51 radio!
Wowwww!!!!
I loved this science live.
I love this show
I loved learning about the radio
Such a fun episode! 🙂
I love watching science lives and I look forward to the next!
How does Dr. Billings come up with video ideas I’am impressed.
I think that black holes are very cool!
thank you for showing us this I learn a lot
I would 100% buy that with my gold credits! I would 100% buy that was my gold credits
I’ve learned so many new things from this video! Thank you
What a fun video today!
Very fun live this week. 🙂
Dr. Billings, what do you think is your greatest acheivment?
What an amazing Science Live!!!
What an amazing Science Live!!!!
I love ❤️ science live! Who else got snow this weekend?
I can’t wait for next weeks!
I am going to make a Winter Butterfly for Dr. Pajet Monet. She will like it, I am also glad that I learned about Radios and the Black Hole.
Thank you dr. Billings
I would 100% buy that What’s my gold credits!
Acellus is great!
The computor thread seems so interesting to me and I’m intrigued to see if and how they make smart clothes.
It was cool learning about Wifi and how it has come a long way!
How long do the string computers last before they have to be charged?
How long did it take for David and Caleb to make the radio wave?
All science live videos are good and helps us learn more.
This is a very cool topic to learn about.
I always learn something interesting from these videos
I love Science live it teaches me so much!
The radio story was interesting
Thanks for the live! its amazing! radio waves are so cool!
All of the stuff about radios was so cool to learn about! Also very interesting how wifi is a made up name! I never knew that.
Thanks for all the time and effort put into this.
I don’t know if all Ai is a good thing or bad thing for the world.
do you think this is to much technology
Love this science live!!!!!!!
Happy Science Live everyone!
You should start bringing on cool things like when you brought on the steam engine!
It would be interesting to have in the gold store a kit to build a radio!
Smart clothes is crazy.
Sewing LED’s into clothing sounds really interesting!!
Learning about radios was really cool!
It’s really cool how they made that really small string.
Blue monster galaxies sound super cool!
It’s crazy how computer’s used to look back then vs now.
Watched from Virginia
The radio was really interesting to learn about! 🙂
i didnt know thats how wifi was made.
The Proteges are very entertaining!
Speaking of electronic gloves, I just saw a video from two MIT students submitting gloves that translated sign language into audible speech! It was for some type of competition but I thought it was amazing
i love dr billings part and learnig about black hole
If we didn’t have WiFi the world would probloly not be how it is tosay
Awesome good fun and I know alot more
How would a tuned radio respond differently from an untuned radio when multiple radio signals are present?
This is really entertaining.
I found this very interesting, thank you.
Despite already knowing radios use a frequency to communicate information, its always so fascinating to learn about inventions that shaped humanity.
The captain scene was amazing and so funny! I love this live!
i think science is so cool
The radio show was so funny and interesting
II loved when they spoke about the Wi-Fi it was so interesting to think of. Amazing video!
The tuned radio was cool.
I didn’t know that WiFi was a random name
I liked learning about the radio. Looking forward to the next science live video!
Interesting that Wi-Fi was named the way it was! *
I enjoyed learning about wifi!
So excited to watch Science Live !!!
loved the jokes “Blue Monster Galaxies”, but this is very complex for a development challenged student who is autistic to sit for the whole hour.. we paused and had to start over the entire video no way to get back to where we were before.
Hopefully those computer string will be used in the future they are so cool!
The string that are computers are so cool! Hopefully in the future they will be used!
We love science live!
Great video, I loved it thank you.
black hols are a interesting topic
I think the radio would be fun to build.
I love radio waves and science live
I loved this podcast.
Computer fishing line would be awesome!
Thanks for sharing another good science live.
It’s so great to see Acellus impacting other people’s lives in such meaningful ways.
When you were talking about wifi, it was cool. If you talked about wifi again in a future video you could call it “why? fi”
what a cool episode thanks
I watched the full Tuned Radio Science LIVE video and now I understand how a tuned radio stage selects a station frequency. Great lesson, thanks!
I love science live the most!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I love dr B so much. Thank you for your amazing science lives
I love watching the lives!
I like the video very much,nice day.
The black hole subject is one of my favorite Subject. Thanks for your vidieo.
It’s impressive how 1920s radios filtered and amplified the station’s frequency through multiple stages before the signal was detected.
Smart clothes sound really cool!
I like to learn about how inventors overcome obstacles and setbacks
The “computer” thread was very interesting and seems to have the capacity of many uses
It is amazing how technology expands and grows so fast.
Dr Billings is so cool
Congratulations to the Proteges and to the Inventioneers! I think you are all doing a wonderful job.
I loved this science video and learning about the raido!
loved the comments about the what not to believe on the internet
I loved this soo much
Love watching these science lives!!
This was super interesting!!
Loved the area51 section and the 51 radio station. Would love to build one.
Good to know that Gugliemo Marconi finally achieved the first transatlantic radio signal after so many attempts to make it happen. Never give up!
It was really interesting to know the initial formation of tuned radio
I love science live
what was the equation that david whanted to explain
I have built simple conductors at camp.
Its interesting to learn about early radios
I thought the protégés were awesome this week
I always love these videos and I learn a lot.
I love science live!!
The thread with computer info was really interesting
Almost everything is technology!
Its so cool to see how much our world is made up of technology!!
I love these videos and the radio and black hole was just amazing.
I can’t wait to learn more each week!
I love science live it is the best !!