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 »
Thank you dr. Billings!
I liked learning about morse code and how it could travel across the Atlantic Ocean.
I love how Acellus can be used in so many ways! As someone talking acellus as homeschooling, I love how actual in person schools also use acellus and can achieve such good grades!
Radio technology is fascinating.
Yes, I would love to work on programming a radio!
I never thought wi-fi was made like that the evengenears were so funny
wow great live from texas
I love these videos
science live is awesome!
I love the Protoge’s and the inventioneers! (I know I spelled both of them wrong, I’m sorry ;-;)
this was a lot of information thank you for sharing
Social emotional really brings peace in the tuff world we live in
We would like to make our own if possible.
I loved this week’s science live!
We would love to make it ourselves.
It was nice hearing about the usage of brain implants amoungst people who are paralyzed
without wifi our world would be different
I love how you can put all of those transistors in a piece of thread.
Radios are interesting and they are also able to be used for two way transmissions.
I always am curious about what’s next on these.
I love learning about radio waves, especially since they are a part of our daily lives.
I like the idea of smart clothes
I love the last part! About the radio transmitters!
I love this show!!!!!!!!!!!!!!!!!!!!!!!!!
SMART CLOTHES
I would definitely like to earn a kit where I could assemble a radio myself. Also the proteges segment make Science Live even better.
what role does the frequency and wavelength play is how a radio is tuned?
I want to be a scientist when I grow up.
the protégés were really funny
I love Science Live, can’t wait until next week!
tansistors are simple and complex
Its very interesting that computer chips can be that thin.
Such interesting topics every week. I would love to see more about drones like the FPV or electronic warfare.
Hello from NY!
Black holes are so interesting i hope we never get near one lol
I love the black hole it is so cool!!
that computer string is cool!!!
Dr.John issssssssss theeeeeeeee besttttttttttttt
this vid was so cool i cant wait to see the next one!!!!!!!!
Awesome video, can’t want for the next one!
I really liked how the Inventioneers helped the Proteges build the radio.
Good show! I would wear smart clothes.
I liked the Proteges when they were on the ship.
what is the cost of a computer chip making it with thread?
I love this episode!!
Great episode! I really liked the singing the Inventioneers and Proteges did.
Wow! I hadn’t even thought about smart clothes. I can’t wait for the future!
Nice science live this week!
I always love watching Science Live, it’s so cool!
I really like the string idea for computers.
I love these live’s!
Love is lesson can’t wait until next week!
I absolutely love science live keep it up!!
I wonder how our world would be without Wi-Fi.
Science live is the best of all
Smart clothes sound so awesome!
I truly enjoy listening to Tobias, the breakthrough topics he brings weekly are always interesting. I didn’t know, that’s how Wifi started and how the name was created. I also enjoyed listening how Motorola became an iconic name that we all know now.
I loved learning about the black hole.
Excellent science live this week, Mr. Billings!
Hi, I am watching with my family.
Thank you for another great video! How do you come up with the video ideas?
I would like to earn a radio in the gold store that I would have to assemble myself! Also Tobias has the best hair!
In this lesson I learned so much !
The touch sensor is so cool!
i liked this a lot and i cant wait to watch more!
How many more days till the science fair?
How must does the telecope cost?
Please add the R-51 radio to the acellus gold store
i liked the smart clothes
I think the history of the WiFi was so cool to learn about. The things about the radio are also neat. Lots of funny jokes too!
Nikola Tesla was pretty amazing! Interesting Science Live.
this was so fun to watch!!!
Awesome video, such a great lesson!
I really like the technology spotlight. The computer fishing line thread is r eally cool.
Hii! I love these and I hope everyone has a great weekend! If your around the snowy/icy areas then stay safe!
The idea of smart clothes is interesting. i
I think it’s funny WiFi doesn’t stand for anything, and was just picked randomly
How is a computer on a thread?!
i love watching these videos they are the highlight of my day
Im glad we have wifi
How long did it take for them to make the computer thread?
To think about how much technology has become a daily part of our lives is insane.
Who came up with the name for blue monster galaxies?
Learning about the radio is such a interesting topic to learn about. I love it!!!!!
This was a great science live!
These are very interesting I like watching them every week.
kaylee from MD checking in!
r51 is the best
how many people were a part of I triple e?
WE LOVE SCIENCE!
I love Science Live.
I love science live is cool
I would invest into smart clothes very early on. I feel like everyone would love them.
Animated shirts would be cool.
It’s interesting to hear about new things every science live!
this is so cute! I love science live!
It’s amazing (and kind of funny) how smaller computers are getting. I am absolutely spellbound by how radios and Wi-Fi and wireless technology work and how you can send information in the air. Thank you also, Dr. Billings, for R-51; he always makes my day! 🙂
I love R-51 so much! He is so sweet and funny!
I liked learning how transistors replaced vacuum tubes and made modern technology possible.
I just got a telescope for Christmas. Now I want to research more about space findings.
Thank you Dr. Billings!
I like the Protege’s. They are a great addition to the lives.
I like the Protege’s. They are a great addition to the live.
Dr John is really cool
A computer chip being a string is very cool and creative!
When he said “Inspired by sushi rolls.” that had me rolling on the floor! I absolutely LOVE Dr. John!
I find it kind of cool that we’re starting a helicopter “flight training” course. Helicopters are something I’ve always found interesting, and it kind of relates to what I would like to do when I’m older.
These lives tell me so much!!
This video was awesome and very interesting. It is cool to know about Wifi, and radios!
I love R51!!! Cant wait for the next episode 🙂
Learning about the black hole was very interesting, and it was my favourite part.
Looking at how to 1920’s radio was very intruiging. Looking at how the radio waves were made was also very interesting.
The part about the smart shirt was interesting, because they used the same technique of making a computer chip, and they put it into a shirt.
I love virtual reality.
What is a transistor?
I want to get the radio with gold credit.
I never truly realized how complex technology is until this, wow!!
When do they plan to start making smart clothing?
Very good, we need to find a black hole big enough not to spaghetti us
I can’t wait for next weeks science live.
Who first invented radios?
Fact for sure; we cannot believe everything that is on the internet.
Great video! Keep up the good work.
without wifi our world would completely different its crazy how much wifi is used
How do blue monster galaxies form, and how do they look under a telescope ? Are they actually blue and huge, and where are they located in the universe?
This was an interesting episode! I enjoyed it. Also I thought Wi-Fi stood for something or had a meaning but glad to learn that it doesn’t haha.
I always found black holes interesting*
it was fun,exciting to listen to,and very important it was very interesting to watch it hade kind people nice people and told a lot about everything.
black holes are cool
I love Dr Billings !
Interesting video, I liked learning about Wi-Fi the most. It’s crazy to learn that something normal to everyday life is so complex, makes me grateful that I have it.
Learning more about wi-fi and radio waves was interesting.
That stuff about galaxies/stars sounds interesting! I might have to go research that later lol
Incredible how computer components were able to be planted into a small thread! It’s super useful for the future! Also how stated it could be used in clothing tech. Awesome how in the future we might be able to track the time from just our sleeves!
I love r51
I can’t wait till next Wednesday!
I didnt know that WIFI was just a random made up name but now WIFI is needed for everything about.
I love watching these!!!!
science live is so cool
I love this science live
Loved this episode so much!!!
Amazing science live!! Thank you 🙂
i love these videos they are so fascinating and full of information..
I love this week’s video, can’t wait for the next!
This video was particularly interesting.
Another great Science Live! I love Dr. John and Tabias. I love learning about the new technology that is coming and hoe our existing technology came about! I am so grateful for WIFI so I can do Acellus… it’s the best! Thanks Dr. Billings!
Yet again another great watch i can’t wait for the next!
im so glad i joined this program i would love to get one of those radios
It’s insane to see how far technology has come, getting millions of transistors in such a small fiber is incredible.
How has Acellus been able to expand its influence throughout the states, and what state was the first one to use Acellus aside from its state of origin?
I love science live and learning about different things.
I’m so excited to watch this episode!
I liked the inventioneers
Wow, a computer chip that’s made of a flat polymer rolled up like a sushi roll, containing thousands of transistors.
Smart clothes would be so cool!
The radio tuning segment was really cool!
I learned that you can make your own radio using a coil.
wow, amazing how radios went from huge to small enough to fit in an ear.
Smart clothes could be very useful in the future.
I find it so cool how a string can hold as much data as a normal computer chip, Science Live is amazing!
We use WiFi for so much!
I love watching science live! Learning about science is always fun!
I liked learning about how wi-fi works with EM waves
My favorite part was the singing part with pirates!
Having sensors in gloves seems cool
when was the first tuned radio made
This is one of the coolest videos so far
I loved learning about WIFI since it impacts our life so much the world would be so different without it
I love science live
This episode taught me something new! Thanks Science Live!
Smart clothes sounds really interesting!
loved the fishing line computer
How neat! Radios were something my grandpa collected, very cool to learn about them!
I can’t wait for the next science live.
Amazing science live!!
Science is my favorite!
The smart clothes were super cool.
I’m always so curious about this, thank you for informing me on it!
R-51 always brings a smile to my face. 🙂
Hi from Michigan everyone!!
I learn something fascinating and new every week. Thank you Dr B. I look forward to these videos every week