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 »
thanks for all the great stuff you put in here
That cube light on the table behind them is cool, almost as cool as the r51 radio.
Please put the r51 radio in the shop.
wifi was made in the 1990’s
Hi From Florida
The smart thread is waterproof. IEEE802.11 first wifi barely worked.
I thought the that’s cool how the radio works and I’m excited for the radio kit
Acellus is a very big program. IEEE802.11 wifi back in the day.
Wifi is so much better than telegraphs!
Computers used to used vacuum tubes?
I really liked this episode of Science Live
What year did the radio with bluetooth come out in?
How small was the radio in the car?
Seems fun to have, i think its a good idea!
I like school at home
r 51 is the best
I really liked area 51
Thank you for the video
amazing show today Dr b
I didn’t know scientist at Colgate university has be using the James Webb telescope to do some really intresting research on blue monster galaxy.
This weeks episode was funny. 🙂 🙂 🙂
They can change things on the transmitter from the frequency on the tuned radio to find the radio wave.
I like when the pirates we’re out at sea
what year was the radio made
I always wondered why it was called WIFI.
Why is it called Acellus Gold? *
I love science live <3
MY KNOWLEDGE GROWS- I’M ADAPTING LOL
I like Science live.
I love them being Pirates.
Why is the point for a testing broadcast radio?
what would we use the computer thread for? And I would really like the R 51 radio in store!
the thing about wifi was cool 🙂
I definitely want an R-51 radio.
Radio waves are super cool!
My mom says not to believe everything online that I see.
I like this because it informs you about science and more
This was a fun episode!
I liked seeing how technology grew and evolved over the years
I loved the part when they were singing
Still freezing down here, hope it’s warmer where you are!
I find it very interesting that a computer chip can be embedded in a thread. Honestly, I wouldn’t have imagined it before.
I love science live
are the screens on computers and ipads glass or a hard plastic???
Its so cool to learn about how radio works. I will look the colpitts oscillator up and see how it would work.
A talking fishing rod would be a great invention. I can’t wait to see things like that come to be reality with the new thread sized chips.
I did not know that the company Motorola started as Motor Radio!
How do prevent the circuits from overheating?
Thank you for all the cool info on radios! I will be looking forward to be getting those radio build kits!🙂📻
I want that radio
The R51 radio would be really fun. I would like to put it together myself.
The computer chip inside a thread was cool.
Computer thread looks like such a great idea. Smart clothes would be so cool!
The tech thread sounds very interesting, especially if it could be used in the medical world.
I would LOVE to have a r51 radio, and i would like to put it together and buy it from the store.
I liked it when they made a small radio. I want to make one too.
This one was such an awesome video!
Can the computer chip be woven into all types of fabric or just one?
Great science live! the idea of smart-clothing is very funny, and the creation of Wi-Fi to benefit portable devices is interesting.
When was the first ratio made? I loved the science live!!
Radio technology is very interesting!
How far do radios work?
Science Live is fun! I get to learn something new each week.
What a fun science live!! Thank you for r51 especially! Cant wait for the next livee
Thank you for teaching me something new each week!
I thought this was awesome! Especially with the computer chip being placed inside a little wire.
Is the thread going to be going into computer in the future?
Can the computer thread be used in anything else other than clothes?
That was interesting to learn about the radio.
I like all of the different radios.
i find how the radio was made very interesting
The fact that people even thought “hey lets just add a certain amount of copper to change the frequency.” Is very interesting to me.
I really like this episode
These are so fun to watch, good video!
Cool video on radios and neat to learn about them.
Interesting video on radios and amazing how far we have come with technology.
I enjoyed learning about tuned radios.
The radio is an amazing invention!
I love Acellus, being able to watch these science lives is so interesting and fun!!!
When was the first radio invented?
i wonder how scientist will use the tiny computer strings
How do you make a foxhole radio?
I love this show
the first radio was so interesting!
i loved this video it was so good
How did they get radios all around the world
I love science live
I love science live!
When was th3 first radio made? Because I am very excited to know.
I love these videos! So excited for the next one!
I was ondering when the first radio was made?
Can’t wait for February’s science lives’s!!
#lovesciencelive
Its really cool that they made a very small computer chip that can withstand stuff.
great live this week <3
That radio invention was cool, and r51 is funny as always.
Its so crazy how we dont use the radio for music anymore time changes!!
When was the first black hole discovered?
I have always loved the design of radio, and I am super excited that I was able to learn more about in this weeks Science Live.
How does that little radio even work? it just looks like its connect to a small arduino with a potentiomenter and speaker.
The tuned radio was an interesting thing to hear about!
I love how cool this episode is.
I love these episodes!
radios have changed ALOT!
My favorite video yet!
Thank you science live.
Thank you for the science live.
Learning more about Henry Ford was really cool!
I really like watching science live from Texas my favorite part was when they were on the boat
I learned that you can put computer chips on a string and make smart clothing.
The time radio technology was discovered was wayyyyy ahead of its time.
I LOVE Science live I do not Have any questions.
What a nice lesson on radios!
Here from Texas, these are so fun to watch!
if a snowy butter(fly) loses its wings is it now called a snowy butter(walk)
Hello from South Dakota!
wow i love science live!!!
I like the science lives 🙂
Radios are really interesting to me so I’m excited to learn more about them and can’t wait to hear more.
Love watching these videos!
Those computer threads are amazing. I am very excited to have light up VR gloves.
I work in a Rescue Squad radio’s are super important in our line of work.
I want to put it together myself!
Wow, I never knew that. The equation thing that they made can be used for Wi-Fi.
How long did you work for the radio company?
How long does it take to manufacture a radio
I want a radio in the gold store!
i love these videos they are so entertaning
I love science live❤️
I really enjoyed this weeks Science Live!
Love learning with science live.
I love these science lives!
I have my own telescope, looking at the moon and space.
Would love to have a bigger telescope to see further into space.
Don’t like fishing, but the computer fishing line is super cool.
I love the idea for the gold store, I want it where I can assemble it myself!
WOW THIS IS SO COOL!
This science live was incredible!
I love science live the way the radio turned on sound a little weird
I love radios my brother has one.
How much will the radio cost in the acellus store?
LOVE SCIENCE LIVE!!!!!!!!!!!!!!!!!!!!
I look forward to these!!
I like learning about radios!
What are the chances that a non- professional scientist could enter Area 51 and leave safely?
I LOVE THESE LIVES!!
How can they put the little chips inside of the string
so thankful for science live, we learn something new each week.
I can’t wait till next week
I loved science live today!
Learning about the tuned radio is so interesting! Can’t wait to see more
I really enjoyed learning about tuned ratios and how it works.
Is wifi going to get better as time goes on?
there’s no such thing as a winter butterfly!
r 51 is sooooooo funny :).
Amazing science live this week!!
Thank you for science live
The evolution of the internet and computers is very cool.
It was cool to learn about the black hole! 🙂
I liked the wellerman song and the pirates
Will the thread still work if it gets really cold?
getting close to episode 300!
I love science live.
I like that you are so inspired by radios!
Hello from FL!
The way radios are made are interesting
This is such a great video it is so educational and helpfull
I love learning about radio.
I enjoyed the talk about the the radio
The wellerman reference was awesome!😂
it is cool they have computers the size of a string
I would really like to see that radio ind the store
it was funny when the guy was unboxing the toilet paper holder 🤣🤣
I love learning about radio.
Who created the first radio, and when was it made?
Science live is so useful! I learn so many things that I had no idea about!
I love Acellus!