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 »
Great Episode, computers are awesome!
You guys should do a live with Bill Nye, i feel like that would be interesting.
so glad i switched to homeschool.
these videos are cool
Love Science Live!
That video was really cool and interesting!
The invetioneering club’s video was pretty funny
It was an excellent video. Thank you
ezekiel hi, from Texas
That’s very interesting and intriguing!
Can’t wait til next week.
this is the best one yet
I want a build yourself radio in the gold store. Them singing the wellerman song was crazy.
The most interesting part to me was the topic about a whole computer being in one single wire, which I found very amazing!
I will love that in the gold station
How can a radio shock if you dont use it correct or when putting it together!!!
i loved the science news today!
i loved this episode, my favorite so far.
The pirate scenes were fun. Loved the radio experiment.
It is so fun learning science.
these are amazing!
It’s so interesting how piece of tech that would be considered obsolete today would have been such high tech advancements way back whenever. Take laptops or portable devices in general for an example, even, say, an IPhone 6s that some would consider unusable today would’ve been unreal in (I think) 2007 when the original IPhone released.
I like these historial episodes of science. Do more of these please
This was a fun lesson!
Comment
Thanks for sharing the 200 year old story and the experiment.
please put the r-51 radio on the market for 4,000 gold coins.
I love the weird facts I find out about with science live
So grateful to be able to be able to tune in for science live!
Hi from VA!
Wi-Fi is cool.
I loved the bit about Blue Monster Galaxies! They have such an interesting name, and it rolls right off the tongue! I also was glad to hear about the Acellus users in California.
I can’t believe they were able to fit all that in such a small thread!
This is very interesting!
The Axe comment was funny, and I love making snow butterflies too!
This live was super interesting!!
I loved this Live. Very interesting.
great video! Best one so far.
Loved this vid!! Watching this from Virginia
It’s really interesting lo learn how the wireless systems wok.
It’s fun watching sience
please put the r-51 radio on the market for 5,000 gold coins. That would be amazing.
Hi from Nebraska!
I love watching science live every week!
that was really good
Comment
My mom says the same thing all the time about not being able to believe everything you see on the internet.
please put the r-51 radio on the market for 5,000 gold coins.
Wow, great video! Thank you once again.
This live was a cool one!
Gosh now i really want to make my own radio lol
My science live cards came yesterday!
Learning how to tune a radio is so cool. This is so intresting.
love this video and idea of teaching.
I think radios are very important because of how basic they are for they are the start of an entire era of tech they led to phones tv’s all modern tech stems from the radio without it we would be nowhere near where we are today!
I love these soooooooo much
I love Science live! ❤️🧡💛💚💙💜🩷 ❤️🧡💛💚💙💜🩷 ❤️🧡💛💚💙💜🩷 ❤️🧡💛💚💙💜🩷 ❤️🧡💛💚💙💜🩷 ❤️🧡💛💚💙💜🩷
my favorite video so far
gosh now i want to make my own radio lol
After this class, I can say that I have a better understanding of wireless systems and how they work
i think the radio waves part was cool!
wow didnt expect a radio waves and water waves joke like this lol
I love these science lives.
Smart clothes would be…smart!!
I loved this live, the comupter chip in thread is so coolllll!!!
I’m excited for another Science Live!
What do you think computers will work like or look like physically?
I really enjoyed today’s live!
So cool to learn about all of this!
i find the idea of smart clothes very interesting
I never knew that about radio circuits, thanks for sharing
What is in a black hole?
i liked how it talked about how wifi was invented and how it worked
i enjoyed this video so much!
I liked so much this live video explaining about tuned radio
what is a blue monster galaxy?
I love butterflies!
So cool! This information is so interesting!
I always look forward to science live!
I am loving the science live videos.
From what I learned in this video Dr.John in technology spotlight said, that this thread was a computer chip made from China, so how they did it they made a super flat polymer and transitors and rolled it up and it’s flexible and can handle up to thirty percent of it’s length being stretched. They ran it over with a car and even said most of it can survive water damage. What I find interesting is that these threads could probably be used in everything future, games, computers, anything. We just gotta be smart enough to make it happen!
yes you should put radios in Acellus gold credits.
I have an old Disney book that says clothes will be smart and make you warm when you are cold.
Great science live this week guys 👍🏻
these are the best to watch, I love learning from them. From Maine
Learned a lot today but talking about sushi made me hungry
Tuning into Science Live from Georgia! That old laptop looked so bulky!
What is a blue monster galaxy
Love this, learned so much. From Maine.
Very interesting subject!
Cant wait for the next live!
Thank you for another amazing science live episode!!
i learned a lot from this science live!!
Loved this week’s live! Thank you, look forward for next week!
A whole computer the size of a thread is amazing. I thought Tesla was a car not a person. Science is fun.
It was interesting learning about John and the radios and how the student and teacher made a company together! Looking forward to the next one! :]
Me and my dad both liked this one.
THANKS FOR THE SCIENCE LIVE!
This is awesome
That new computer in a thread is really cool.
Great live! From Texas
Radio waves are so interesting to learn about. Great Live!
Thanks for more cool facts!
Comment This episode is one of my favorites.
Enjoying Science live from Florida!
What is the furthest distance telegraphs could be used for comnunications? Is there a resistance that limits its length or is it just limited by the length of the wire?
The ASMR unboxing was goofy, but it was so funny. The thread from the start of the live could also be used for possibly sending radiation through the brain for cancer if they tried hard enough.
this was a really cool episode!!!! i learned a lot!!!
Having a glove made out of computer thread would be so cool!
That was a great educational moment!
i love science so much cant wait for the next episode
Thank you for this great video. This video taught me so much
It is insane how fast technology has progressed since 1857 we went from a long cable across the ocean to wireless connection all around the world
I love how interesting each episode gets.
Hi Its Chloe , my mom always tell me too “ dont always believe what you see on the internet “ . Radio waves is pretty cool.
i love science live so much coming from mass
please put the r51 station in the gold store.
Sadly missed this weeks live, but I’m excited to see what it had in store now!
Comment: Radios are one of the most important inventions; they were how families were able to connect with others around the country. One of the best inventions!
thank you for being our teachers
Could the tuned radio help the environment in any way?
Classic Lincoln quote!
Blue Monster Galaxies? That’s a first. Never heard of that before!
Radios are such an interesting invention!
Yes! I would love to have those in the gold store!
Yes please i love it the R 51 radio
Hello from AK.
Wow so cool i really wish that Acellus was in callifornia so i could attend the acellus world and science live too :(((
What if radios were combined with a super conductor wire instead of a copper wire.
learning about the ol days and wifi was cool!
Tuning into Science Live for Georgia
The thread is amazing. It will be very useful.
It’s always amazing learning new and interesting thing’s from these science lives. can’t wait for the science fair!
That was funny.
hello from nevada!!
R 51 always makes me laugh.
I’m surprised that you could have computers in a thread. Ya’ll are amazing!
I like the micro processer section.
I did not know waves had different speeds, i just thought it was the speed of light!
Thats a lot of progress for the many kids passing in California.
Hello from Texas
Always love tuning in
Radio is one of the most fascinating things ever
this was a fun episode!
I’m so excited! My birthday is on Monday.
hahaha your so funny
I hope you follow the thread!! That sounds amazing!!😻
Great to hear how in California, Acelus is growing. I can believe that this can be a computer. Maybe one day I can contribute to something like that.
Technology has come so far can’t wait to see what the future holds
I think you should add both the finished product and the one you can make.
So excited for this live, sorry I’m late by a day,
Hello from NC
How did r51 make that snow butterfly so fast?
thank you for another great video 🙂
being able to have an entire computer in a thread is so cool.
wow! this is so cool i love being able to learn about this
these are very educational, id love to do my own research on that telescope!
It is so interesting how radios work!
i love science live
I would love to be able to get that little radio from the gold store and build it myself!
Can we get the radio in the gold store.
I love this video!!!
Marconi’s persistence helped develop technology and ways of communication.
ScienceLive is so interesting.
I love science live! from Florida.
A radio kit would be really cool
The proteges and the ventioneer club are funny.
I was very cofused about the internet post part until I said it out loud I was like ohhhh I’m dumb. the computer thing was both very smart and useful.
I really liked this episode =)
hey from Montana
science live is always fun
i love having wifi
loved learning about the tuned radio
I always look forward to your science lives! You guys are so funny and smart, it makes learning really fun.
I am not surprised at how successful kids are on Acellus. I personally love it more than other programs I’ve tried before!
Loved this science video
I didn‘T know how wifi worked until now