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 »
What is the primary purpose of a “tuned” circuit in a radio receiver?
i really liked when tobias did the australian accent! The inventioneers were really great too!
Without wifi life would be very different.
this was fun i got to learn more about radios and blackholes
I would love the radio added in the gold store as a science fair project!
What do we know about black holes? How do we determine where they are?
The formula is such a powerful tool.
Highlight of my school week!!!
Radios are so neat!
it was so cool to learn about radios and how to tune them and use them thank you for another science live episode!
We are so blessed to have wifi and be able to do school at home.
This one was very interesting and funny
I enjoyed learning about radios and thread-like mini computers. I like the idea about making your own radio, it sounds fun.
I would love to earn gold to get the radio. I would also like to build the radio.
It was amazing learning about Radios!!
I really enjoyed this Science live.
Thank you for the lesson. I like learning about the radio. It was fun.
Very cool live its cool to learn about the computer chip love you all
Woah, I always wanted to learn about this! Thank you Acellus!
I love science lives thank you
I loved this science live!
I really enjoyed this episode!!
This episode is now one of my new favorites!
Thank you so much
I love Watching Dr Billings!
R-51 is so funny
Radios are super interesting. It’s crazy to me how one message can get out to so many people in only one area with just one device.
Blue monster galaxies 😂
I’m so happy that Wi-Fi is a thing because everything that is easy would be much harder. At the same time though, without Wi-Fi the world would be a lot more vibrant, I feel like with the technology is improving so fast that everyone is depending on it and without it we would see more kids outside playing with their neighbors instead of staying inside on some sort of electronic.
so amazing I love science live!
Black holes are AMAZING! I love Science Live!!
The black hole sounds so cool!
I loved the radio and can’t wait for next week!!!
Can’t wait for the next episode!!!
Learning about the radio was interesting and I liked it.
Dr.Billings is so awesome
Learning about the radio is something I really liked.
I love acellus!
I love learning about R51
SCIENCE LIVE IS THE BEST
something fun every week.
It’s crazy how how interesting the radio is.
Love the video!!
I learned a lot from this video! Very interesting!
I loved that video! It was very interesting.
I love watching science live, it teaches me so much.
Im definitly going to reasearch blue monster galaxys and learning about the nano chips was so cool!
Wifi is used is so many other ways then I have imagined.
Wow, I can’t believe the name wifi has no actual correlation
I don’t understand how people lived without WI-FI. Everything i use is with WI-FI.
So many interesting facts on this science live!
oh, bravo, love Join Roger Billings
This science live was very interesting this week.
What a cool science live see you next week learning about the radio /wifi
This was interesting about the WIFI and computers.
Loved this weeks science live and learning about Wi-Fi
I love the Inventioneer addition to Science Live! This was so funny!!! Thank you, Acellus!
Radio waves are amazing!!
I really liked this live!
These videos are great everytime
I love Dr Billings!!
I love Dr Bilings!
Love these lives!
Why is Acellus called Acellus?
i love science live !!!
I’m excited for next weeks science live!
I love Dr.Billings and Science Live!
this was very interesting to watch
I love Science Live!!!!
Wow! Wi-Fi is used so much! I enjoyed learning more about radios.
Macroni was genius for seeing how to combine two advanced technologies
The radio stuff was interesting
Very inspiring Macroni story
if we didn’t have wifi a lot of our items and day to day activities and things won’t not work but we still be able to survive without it for the most part
Science Live is such a great family time moment for my family.
I want to try a radio!
I love music so I liked learning about the radio.
the black hole is cool
How much data can the cable transfer?
I loved this Science Live episode! Please keep doing R-51 videos because he’s so funny!
Learning about radios and how they have changed over time is interesting
do you think that in the future there will be smart eyes. and they will have to implant a microchip in the back of you eye.
we always wondered what Wi-Fi meant
How long did it take them to develop Wi-Fi?
Learning new things on Science Lives.
I love how much effort the put into science live keep it up!
It’s AMAZING that we might have computers in our clothing soon
Why was wi-fi first called IEEE 802.11
science live is so cool! Can’t wait for the next video
So cool to learn about Wi-Fi
I liked the history of WiFi.
R51 radio sounds cool.
I love learning about black holes
Loved this episode.
Learning about the black hole was so interesting!
How a radio works?
Comment I love Dr billings
CommentTHIS SOUNDS SO COOL ITS ISABELLA FROM FLORIDA!!
Learning about the radio was really cool I love the history behind stuff like the radio and how it lead to modern day communication!
i like the pirate story with radios added to the mix then sang wellerman
I just love dr. Tobias!
the radio gave away to many more inventions
I couldn’t live without internet. Let alone WiFi. Since I like to game.
thank y’all for acellus
loved this video
I’d like to try some smart clothes
I cant wait for the next weeks live video!! I hope it going to be just as exciting as this one!
Black Holes are really interesting.
the area 51 guy is funny! i like him!
Good to know more about computers.
I love the radio
Awesome video, thanks for the info! Love learning more
Hi Roger Billings
I love R51
science live is awesome
This Science Live was really interesting!
I love the black hole!!!
I love Science Live! Can’t wait for next weeks video!
Do storms change how signals travel?
these are so fun to watch
Great lesson I learned so much thank you!
Learning about how radio works was really interesting.
this is my favorite episode so far
I want a radio now.
MY mom said her favorite thing was radio when she was younger.
We love learning the history behind our widely (still used) science! Especially the radio, which still blows my mind how it came about.
Do you the thread computer chip will become bigger in overtime?
How did the computer cord survive the truck?
That’s crazy that they drove a truck over it
that would be really cool to learn to fly a helicopter
I learned that the fiber chip is a very thin thread which performs like a computer. It is also very flexible and has 10,000 transistors just in a millimeter. This thread is going to be used for smart clothes, gloves with touch sensors, and for replacing other electronics that interact with humans by these comfortable and flexible threads.
I love learning about the radio
This was one of my favorite episodes of Science Live.
Me and my brother just did radio marit bage for scouts.
I liked the part about the really thin computer chip it shows how far technology has come over the years. Can’t wait to see next weeks live.
My favorite part was the computer string its really interesting and i want to see it in the future
Do pirates have wi fi
I love learning new stuff, thanks!
I love Science Live!
The pirate part was really funny 😀
There’s snow at my house in VA.
this is my favorite episode of science live
I loved learning about the black hole!
Here from New York!
I love watching science live every week because they always talk about something I would not have thought about before I watch it.
Are Wifi signals unhealthy for us to be around?
love this video, cant wait for next weeks
We use Acellus as our homeschool source and we homeschool from Canada
awesome live, cant wait to come back next week for another science live.
Its crazy how much we have to rely on wifi nowadays you know? But im extremely grateful i grew up on it! Its truly a blessing that life is abit more easier for me with wifi.
That was so cool and funny and Learned alot of stuff .
Acellus has been awesome to learn
Pretty interesting learning about radios
This episode was awesome, just like the others that came before it!
That’s insane seeing a computer chip in a thread!
About the first part now its going to be harder to identify what is real in the internet because of AI : /
I love science!
I love science live!
I love the part about the r51 radio!
Thank you for the live. Smart gloves are such a helpful idea to help those who need it.
This was very intresting!
Who made the first circuit?
I love Dr Billings
What was the first radio station?
I liked learning about the radio.
I love how Science Live presents information and keeps it so easy to understand.
Excited for next week!
I love the part with the pirates!
This is really entertaining
Yes to the radio kit with credits!
black holes are cool
The story about how you got your weather report was funny.
I enjoyed the topic on the black hole!! love science live!!!
i loved this video
the black hole wss cool to learn about!