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 »

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7,028 Comments

  1. Cecelia

    Love you Caleb.

    Reply
  2. Atticus

    I love science live~

    Reply
  3. Kelsey

    I love watching Dr Billings!

    Reply
  4. Aubree

    this weeks video was so good

    Reply
  5. Benett

    This one was great I can’t wait for the next one

    Reply
  6. Brody

    love learning stuff like this could possibly help me in the future!

    Reply
  7. Laanna

    Thank you Dr Billings for all your time!

    Reply
  8. Madilynn

    I can’t believe how much WI-FI is used in the world. I love learning about all of this different stuff.

    Reply
  9. Misael

    this was so much fun to watch

    Reply
  10. Austin

    What next, a radio message from the invention of the first radio? But seriously though, I think a touchscreen display that you can wear on your jacket sleeve and attaches with buttons or something would be really neat, and you could use it as a watch and other things, then take it off to wash whatever you put it on, while it can also survive being washed just in case.

    Reply
  11. Trinity

    I really liked the smart clothes Dr John talked about. Thank u all acellus staff!

    Reply
  12. David

    cool video! I enjoy them every week!!

    Reply
  13. Barott

    I loved learning today cant wait for the next science live

    Reply
  14. Joseph

    It’s quite fascinating how radios takes in sound waves and converts them into electromagnetic energy that is transmitted through the steptrum.

    Reply
  15. Zoey

    its amazing how the are trying to make a computer in string

    Reply
  16. Peyton

    The radio is a very interesting piece of technology!

    Reply
  17. Brenan

    Shoutout to that weather station for saying it’s sunny while it’s actively snowing

    Reply
  18. Maxwell

    That pirate skit caught me off guard! LOL

    Reply
  19. Serenity

    Could the computer line be used as fishing line to find and catch fish?

    Reply
  20. Zhiyra

    How did they come up with the name WiFi?

    Reply
  21. Cooper

    Another amazing live!! Cant wait for next weeks live:)

    Reply
  22. Layla

    Loved this episode!

    Reply
  23. Audrey

    Smart clothes sound so fascinating!!!

    Reply
  24. Lily

    It was really cool learning about black holes

    Reply
  25. Nabeel

    When you turn the radio knob just a little away from the right station, why do you hear static or bits of other stations instead of the sound just cutting out completely?

    Reply
  26. Kylar

    I think the radio was the most entertaining part i wont lie!

    Reply
  27. Jamin

    Is there any way for this string tech to communicate wirelessly?

    Reply
  28. Nathalie

    Wow! I learn so much from these videos!

    Reply
  29. Sadie

    I thought that Wi-fi was short for something haha!

    Reply
  30. Olivia

    Radio frequencies are so cool. The fact there are so many radio stations to connect to is awesome.

    Reply
  31. Hollie

    I really enjoyed watching todays episode!

    Reply
  32. Rylee

    Black holes are always super interesting, I could read about them all day.

    Reply
  33. Gavin

    No way… we got ACELLUS STAFF SINGING IN 2026!?

    Reply
  34. Scarlett

    It’s so interesting how they used to tune radios and how the waves worked.

    Reply
  35. Riley

    Do you think the new computer chip in the thread tubes will be able to make people look invisible depending on the program to like mimick the environment?

    Reply
  36. Amy

    Its so fun to learn about new things every week!

    Reply
  37. Kopelyn

    The inventioners (probably spelt that wrong 😅) were really funny. I hope we see more of them.

    Reply
  38. Tabitha

    Radio 📻 time

    Reply
  39. Colton

    This was really interesting.

    Reply
  40. Mariah

    I loved this live!

    Reply
  41. Lukas

    Dr Billings is cool.

    Reply
  42. Joseph

    very interesting love Dr billings

    Reply
  43. Layla

    tuning in from East TN! The radio is very cool

    Reply
  44. William

    i think the area 51 radio tune was very funny

    Reply
  45. Judah

    Today’s segments were so interesting!

    Reply
  46. Damia

    I love how science is basically the definition of magic!!

    Reply
  47. Ryleigh

    I love what Tobias talked about I also can’t believe that WI-FI is just a made up name!

    Reply
  48. Evelyn

    i look foward to this every week!

    Reply
  49. Mason

    The stuff about radios was really insightful.

    Reply
  50. Bilal

    smart clothes are crazy i never thought of that!

    Reply
  51. Liliana

    I love this episode I have a radio in my room

    Reply
  52. Violet

    I think R51 radio was funny 😜

    Reply
  53. Alexa

    This live was one of the most interesting!

    Reply
  54. Luke

    Black holes are interesting

    Reply
  55. Lorelai

    (love the sea shanty song) cool episode can’t wait to see what next week’s is 🙂

    Reply
  56. Scarlett

    I liked learning about how radios where made and the black hole.

    Reply
  57. Rylan

    I love learning about radios!!

    Reply
  58. Lucy

    I find it so interesting that WI-FI is just a made up name.

    Reply
  59. Ashton

    I liked this science live a lot!

    Reply
  60. John

    Cool video about the radio and Wifi.

    Reply
  61. Jabin

    it is cool that so many people are being helped by Acellus.

    Reply
  62. Ian

    How did they get the computer chi[p so small.

    Reply
  63. Hailey

    its amazing that China created a computer string.

    Reply
  64. Savannah

    Woah, the radio is so cool!!!

    Reply
  65. Rylee

    This Science Live was very interesting! Thank you guys for Science Live!

    Reply
  66. Alierra

    I love watching science live

    Reply
  67. Leonard

    It is amazing how quick the technology advances.

    Reply
  68. Roman

    Our wifi is out and im watching with a hotspot.

    Reply
  69. Kora

    i just love the science this schooling provides.

    Reply
  70. Kamden

    Loved learning about the Wi-Fi.

    Reply
  71. Tyler

    The radio system is so cool

    Reply
  72. Layla

    I love this school and the activities!

    Reply
  73. Nicky

    As a first grader learning reality vs. fiction: did the boy really time travel or is that acting?

    Reply
  74. Alyssa

    It is incredible that a computer chip can be rolled into a thread, and it would be interesting to see it used in clothing.

    Reply
  75. Laceyn

    I really enjoy listening to Dr. Billings talk about the radio.

    Reply
  76. Daniel

    I like how Marconi never gave up and made his radio work.

    Reply
  77. Ayden

    hello from florida!

    Reply
  78. Kaleb

    Dr B IS SOO COOL

    Reply
  79. Morgan

    what is a blue monster galexies?

    Reply
  80. Savannah

    Inspiring video this week as always.

    Reply
  81. Madylin

    Love the video! cant wait for next week

    Reply
  82. Eric

    Radios are amazing!

    Reply
  83. Thaddeus

    How can I make a receiver at home?

    Reply
  84. Thomas

    What would happen if I used that wire as fishing line?

    Reply
  85. Benjamin

    That tube looks fragile and yet it can bend. It can’t break

    Reply
  86. Kamden

    It is insane how much we use WIFI. I never realized!

    Reply
  87. Arnold

    this was a cool science live.

    Reply
  88. Felicity

    I like that the Inventioneers are back!

    Reply
  89. Rashawn

    Where did the idea of black holes come from?

    Reply
  90. Kline

    Oh my gosh! I loved this episode! I couldn’t stop laughing at the unboxing lol!

    Reply
  91. Olivia

    I have no water right know but m thankful to have Wifi and power. Its so cool to learn this during this snow and ice storm!

    Reply
  92. Madison

    This Science Live was very informative yet entertaining. Can’t wait for the next one!

    Reply
  93. Antonio

    I like everything I learned in this video

    Reply
  94. Clayton

    i really like science and i hope to eventually be and electrician and start my own buisness so energy and science is crucial there

    Reply
  95. Kaden

    Blue monster planets so monsters are real AH!

    Reply
  96. Piper

    Tubias is so helpful I never knew the things he teaches

    Reply
  97. Aidan

    Holographic computers could be next.

    Reply
  98. Piper

    R 51 is so funny that is not a tuned radio!!! *

    Reply
  99. Zubaida

    I appreciate this week’s podcast and the opportunity it provided to learn new things!

    Reply
  100. Brayden

    yes yes yes yes i would love for the radio to be in the gold store!

    Reply
  101. Anneson

    science live always has so many new things to talk about!

    Reply
  102. Noah

    unrelated to the science live but will there ever be a calculator intagrated into acellus?

    Reply
  103. Bella

    I like watching these videos!

    Reply
  104. Dakota

    The pirate stuff with the protegés is so fun!!

    Reply
  105. Isabella

    Awesome video this week, I bet next week will be even better because that’s just the way it goes for Science Live!

    Reply
  106. Cooper

    This was a fantastic episode!

    Reply
  107. Madison

    It would be cool if they could make telescope glasses everyone could get.

    Reply
  108. Omurtag

    I love learning about black holes !! they’ve always been so interesting to me

    Reply
  109. Jerrik

    Black holes are amazing and are so cool to learn about!

    Reply
  110. Cora

    I wish my WIFI worked better!!!!!

    Reply
  111. Jordin

    this school is amazing

    Reply
  112. Brantley

    That story about where radio stations get news about the weather was hilarious!

    Reply
  113. Aubree

    I really loved this video !

    Reply
  114. Ethan

    I love the acellus program!!

    Reply
  115. Claire

    Computers are genuinely the breaking point of technology!

    Reply
  116. Stuart

    I can’t wait for the radio kit!

    Reply
  117. Amelia

    lol you really cant belive everything you read on the internet:,)

    Reply
  118. Addie

    I love black holes and am so happy I got to learn more about them!

    Reply
  119. Isabella

    Great video! I learned a lot and this was very educational.

    Reply
  120. Gianna

    Hi from Illinois! Another great Science Live! I would vote for the radio that we can assemble, I like the hands on learning option. Thank you for always being open to expanding class offerings.

    Reply
  121. Vanessa

    Information about the radios was good

    Reply
  122. Bram

    It would be great to have the radio in the store, so we can purchase it with our gold coins. Thank you.

    Reply
  123. Kaylee

    I didnt even know winter butterflies were thing until i looked them up lol!

    Reply
  124. Sadie

    I think science live was good to day!

    Reply
  125. Vanessa

    Information about the radios was cool

    Reply
  126. Macie

    This is so cool!!!

    Reply
  127. Kaci

    The evolution of computer chips is crazy! Good lesson!

    Reply
  128. Henry

    I love the snow butterfly!

    Reply
  129. Hidekel

    I always forgot about how much I use Wi-Fi, but I’m literally using it right now as I’m typing this learning about it was really fascinating. Also, as always, R51 was very funny.

    Reply
  130. Emma

    It’s cool how a person can invent something, despite what society or scientists believe would work. It shows what persistence in your work can do.

    Reply
  131. Beck

    Learning about the radio is fascinating as I enjoy listening to music.

    Reply
  132. Sydney

    I love anything about history.

    Reply
  133. Kyra

    I can’t wait for the next episode

    Reply
  134. Nathan

    these are so interesting and educational

    Reply
  135. Jeffrey

    I love Dr Billings!

    Reply
    • Haileigh

      i like learn about the black hole

      Reply
    • Sinclair

      Paget moanet is my favorite

      Reply
    • Brandon

      Every science live I learn something new!

      Reply
    • Mia

      Loved the video it was so fun to watch.

      Reply
    • Riley

      I loved learning about the black hole.

      Reply
    • Leah

      These videos are so interesting.

      Reply
    • Braden

      Dr billings is so fun

      Reply
    • Tucker

      It would be hard if we didn’t have wifi and radios. I dont know how we would get news and information about the weather without it.

      Reply
    • Nadiya

      I love science live!!

      Reply
    • Victoria

      This science live was very cool.

      Reply
    • Alhaji

      I love the winter butterfly

      Reply
    • Nguyen

      today’s live is cool

      Reply
    • Brianna

      Great Live today! I found it interesting how researchers could put coding for computers on such tiny string.

      Reply
    • Abel

      I would die without wifi. I play a lot of video games on my free time.

      Reply
    • Mason

      How does a tuned radio select one station while ignoring others?

      Reply
    • Treyton

      At what point is it too much technology? Do we need clothes with computers in them?

      Reply
    • Skylar

      Love this so much!!!

      Reply
    • Veronika

      This is so cool to learn about this

      Reply
    • Anthony

      Thanks for this! I’m really into radios and this honestly was very interesting! Please do more!

      Much love from Anthony!

      Reply
    • Ella

      I love science

      Reply
    • Kora

      me tooooo☺️☺️☺️☺️☺️☺️☺️☺️

      Reply
  136. Colton

    I like learnng about the radio and the black hole

    Reply
    • Destiny

      Amazing video! So excited for next weeks !

      Reply
    • Khloe

      Imagine a world without wifi! It sounds crazy but 50 years ago they didn’t know what it was, nor internet.

      Reply
    • Ryan

      I like going to visit my grandpa in Maine. He lives off grid. It’s a lot of fun.

      Reply
    • Maximus

      I love learning tuned radio it is cool to learn about. A

      Reply
    • Liam

      First broadcast and it was sooo awesome. Learned a lot about the history of WiFi and how radios work.cant wait for next week!!

      Reply
  137. Phinn

    Smart clothes sound cool!

    Reply
    • Ramiel

      It was interesting learning about the origins of wireless communication. It’s amazing how far we came from the 1800s with the first wireless transfer message only going 5 miles while we can communicate to people from across the world with our little phones today.

      Reply
    • Elijah

      So cool to learn about this

      Reply
    • Audricks

      First time watching. Very interesting about the WIFI name.

      Reply
    • Joshua

      I love this episode

      Reply
  138. Edison

    Without Wi-Fi our world would completely different, it’s crazy how much WI-FI is used, also I didn’t know that WI-FI was just a random made up name.

    Reply
    • Elika

      This is so cool!!

      Reply
    • Khyrah

      I love science!!

      Reply
  139. Lutessa

    Comment *Awesome video cant wait for next week’s

    Reply
    • Christopher

      I love the tuned radio!!!!!!!!!!

      Reply
    • Jozef

      Always a unique learning experience when watching Science Live’s

      Reply
  140. Layliana

    Its nice how the 1920s used a tuned radio and around the radio frequency (station) across multiple stages before detection.

    Reply
  141. Hallie

    I loved this science live!

    Reply
    • Haiden

      Great episode can’t wait for the next one!

      Reply
  142. Skylar

    its cool to see how computers are made basically

    Reply
    • John

      I like the pirates

      Reply
  143. Aubrey

    loved this video thnak you so much for this awsome information

    Reply
  144. Scarlett

    Comment love the energy

    Reply
  145. Anna

    Cool episode!! Can’t wait for the next:)

    Reply
    • Safia

      Yah one of my favourite parts is how to learn with acelus gold.

      Reply
  146. Frederic

    I thought the stuff about the radios and tuning them was interesting.

    Reply
    • Kylie

      This video was so cool and I learned so much!!!

      Reply
    • Caiden

      Science is a wonderful thing. Imagine where we would be without science.

      Reply
  147. Indyanna

    Cant wait for next weeks video

    Reply
  148. Piper

    That would be cool to learn how to fly a helicopter.

    Reply
    • Mitaiah

      Same- It sounds so fun :]

      Reply
  149. Hayley

    R51 is my favorite!

    Reply
    • Alice

      I’d say r51 is funny too

      Reply
    • Shae

      Me too!☺️

      Reply
  150. Aiden

    I am so excited to watch this episode!

    Reply
  151. Zariyah

    This is definitely my favorite episode so far! Good job Acellus 👍🏻

    Reply
    • Lily

      yes, this one was awesome.

      Reply
  152. Mariah

    I LOVEEEE THESE

    Reply
  153. Flynn

    that computer string is cool

    Reply
  154. Colton

    This is really entertaining

    Reply
  155. Corbin

    I Love r51

    Reply
  156. Colton

    This is cool

    Reply
  157. Emilia

    I love science live ❤️❤️❤️

    Reply
    • Luna

      Learning about frequency was interesting and makes me think about the possibility of other dimensions

      Reply
  158. Hayden

    Another great video! Thank you!

    Reply
    • Landon

      Wow….what a cool science live.

      Reply
  159. Aaron

    You need wifi to play video games.

    Reply
  160. Amy

    Live, laugh, love Dr. Billings.

    Reply
  161. Travis

    Wow that was interesting!

    Reply
    • Lejeania

      This was very interesting. From Virginia

      Reply
  162. Alexandria

    Thank you Dr. Billings!!

    Reply
    • Vivian

      It was very interesting learning about WiFi!

      Reply
  163. Ryder

    This was a great episode! Thank you!

    Reply
  164. Emma

    Blue monster galaxy sounds like a drink. That’s actually pretty funny; I would definitely drink that.

    Reply
  165. William

    David and Caleb teach very interesting lessons and always add a little humor to it. They really get me excited to learn science!

    Reply
  166. Sofia

    I think it’s cool that computer chips can be in a thread! I love how technology is evolving.

    Reply
  167. Behring

    Love these, there is always something new and interesting that I learn.

    Reply
  168. Presley

    That is so cool, I hope you add the radio to the store.

    Reply
  169. Regan

    its very cool how many types of radio were made!!

    Reply
  170. Eli

    Science Live is incredibly educational.

    Reply
  171. Evangeline

    What are different types of radio circuits

    Reply
  172. Christian

    When did they make the first radio?

    Reply
  173. Kasper

    Who knew blue monster galaxies existed?! Cool. Also, love Nikola Tesla. My dad started telling me about him when I was little.

    Reply
  174. Owen

    I never realized how small nanometer were for some reason.

    Reply
  175. Jada

    This is fun 🤩

    Reply

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