Tuned Radio

January 28, 2026 Β β€’Β  EPISODE 295

How do radios tune in to specific stations? In this episode of Science LIVE, Dr. Roger Billings explores the tuned radioβ€”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 β€œDrB” 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 β€œgive back” by mentoring students in conjunction with the Roger Billings Scholarship Program.


Read more about DrB » 
About the Roger Billings Scholarship Program Β»

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7,028 Comments

  1. Sophia

    Wow, this was such an interesting episode!

    Reply
  2. Aumire

    The inventors are so good at super inventorneering.

    Reply
  3. Tripp

    How is a black hole invislble?

    Reply
  4. Luke

    Comment how are they able to have a computer in one thread thats insane.

    Reply
  5. Julian

    Comment so when is the next episode this is my new favorite show

    Reply
  6. Katherine

    I love science live. πŸ™‚

    Reply
  7. Andrew

    wow! A computer the size of a pin is crazy!

    Reply
  8. Tate

    I agree, you definetly can’t believe everything you hear on the internet! I love science live, from Florida.

    Reply
  9. Derek

    I love Science Live.

    Reply
  10. Sawyer

    Just started the intro to US history, love it, talking from North Carolina

    Reply
  11. Tuckyr

    The thread in a computer is crazy cool I love it!

    Reply
  12. Evelyn

    I really enjoyed this episode about radio waves. I can’t wait for the next!

    Reply
  13. Robert

    Great Episode!!! From Georgia. USA

    Reply
  14. Julia

    I thought the clothing computers were interesting and I like how you changed up the inventioneers and added the protogees.

    Reply
  15. Daja-raye

    hello from new jersey !!

    Reply
  16. Colton

    radios are cool

    Reply
  17. Kean

    I learned more about radio wave.

    Reply
  18. Kyle

    Thanks for the show!

    Reply
  19. Julienne

    I really liked this one and yes you really can’t believe everything on the internet

    Reply
  20. Jacob

    Hello from Texas.

    Reply
  21. Olivia

    It’s so cool that clothes can be smart 😁

    Reply
  22. Armani

    The proteges are soooo funny

    Reply
  23. Dionne

    Enjoyed the video. Thanks

    Reply
  24. Jacob

    Enjoyed this week, loved hearing about the radios again!

    Reply
  25. Samantha

    How is everyone
    The video today is awesome

    Reply
  26. Tamra

    Amazing and wonderful science live as always!

    Reply
  27. Marak

    I Liked The part where he talked about Wi-Fi

    Reply
  28. Elizabeth

    I love Tobias

    Reply
  29. Aubree

    That is an interesting theory about the stars!

    Reply
  30. Anastasia

    how are magnets made

    Reply
  31. Timothy

    I really can’t wait for the new helicopter class when it’s available

    Reply
  32. Lily

    I love Science Live!

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  33. Bradley

    I love science so much

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  34. Thaddeus

    I had no idea computer technology could be made into a thread that is so durable.

    Reply
  35. Alana

    I love science lives!

    Reply
  36. Hope

    the pirates was funny.

    Reply
  37. Hayden

    Can we learn about amplifiers? Why are hearing aid amplifiers so expensive?

    Reply
  38. Penelope

    I can’t wait for next episode!!! Talking from Knoxville TN!!

    Reply
  39. Bentley

    What subject do you like the most

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  40. Mack

    I think it is pretty funny that WiFi is just a made up name.

    Reply
  41. Adelynn

    I love science lives❀️❀️❀️

    Reply
  42. Skylar

    This weeks science live was really cool! From North Carolina.

    Reply
  43. Dana

    These science lives are so informative I enjoy them so very much. Thank you Acellus!

    Reply
  44. Courtney

    I have an suggustaint for the next since live how to make your own inventenet also i love science and science live.

    Reply
  45. Kaleb

    Thanks for another awesome video.

    Reply
  46. Kiera

    I pirate and the inventors was funny (they always are)

    Reply
  47. Leah

    I really enjoyed this live!

    Reply
  48. Gabriel

    Marconi was a very famous inventer. His objective was to prove that electromagnetic waves could transmit messages without wires over long distances.

    Reply
  49. David

    The story of Marconi was very interesting because his goal was to send and receive radio waves iver long distances.

    Reply
  50. Haywood

    We got 8 inches of snow here!!

    Reply
  51. Blake

    This was quite the interesting segment.

    Reply
  52. Diego

    how will radios evolve in the future?

    Reply
  53. Isabella

    Please do an episode on botany!

    Reply
  54. Trevor

    I am glad other schools are incorporating Acellus into classrooms.

    Reply
  55. Carter

    Happy to be here today.

    Reply
  56. Hayden

    How is everyone doing during this snow?

    Reply
  57. Naveya

    It’s so interesting to think about how students using Acellus are from all over!

    Reply
  58. Braxton

    Good Job Dr. Billings

    Reply
  59. Carson

    Thank you for a great science live as usual!

    Reply
  60. Ryan

    I liked learning about the radio waves!

    Reply
  61. Addison

    I did not know Acellus was used in public schools. I thought it was only for homeschool. 60% to 99% passing is awesome!
    Can you imagine if you had the sushi roll transistor in a blanket and you could lay on your stomach watching stuff on your blanket? That seems like it would be cool.

    Reply
  62. Brayden

    being able to have like a whole computer in a thread in crazy! yet so cool.

    Reply
  63. Caleb

    I like the idea of special shirts

    Reply
  64. Evelyn

    This episode was one of my favorites.

    Reply
  65. Aaliyah

    Hello from West Virginia!

    Reply
  66. Le

    Love this live. Thank you so much.

    Reply
  67. Halimah

    Very informative! I enjoyed this session!

    Reply
  68. David

    I liked learning about radio waves. Thanks Science Live

    Reply
  69. Ava

    Thank you for having me! I am an Acellus success story

    Reply
  70. Emma

    I like science it’s so cool. I learned so much.

    Reply
  71. An

    *Dr. John part is so cool, he talk about a computer in a thread. I didn’t know that you could put a computer in a thread.

    Reply
  72. Ethan

    This was great. I always learn so many new things!

    Reply
  73. Gavin

    Science live is always getting better and better!

    Reply
  74. Nguyen

    I love this so much

    Reply
  75. Mason

    This was a very interesting science live and very fun as well

    Reply
  76. Franchesca

    i love watching these

    Reply
  77. Cullen

    i wanna be able to bounce radio waves one day

    Reply
  78. Ryan

    Pretty cool, I learned things I didn’t know before

    Reply
  79. Levi

    I really like Breakthrough moments in science

    Reply
  80. Zoe

    I love science live sessions

    Reply
  81. Aiden

    Love science live! Always learning something new.

    Reply
  82. Jacob

    Roger you are outstanding man, keep it up!

    Reply
  83. Chris

    Loved it Roger Billings!

    Reply
  84. Kayleigh

    I really like these Science Lives, especially the Area 51 clips near the end!

    Reply
  85. Charlie

    Very late this time!! The weather is very effective lately on the human body.

    Reply
  86. Brandon

    Computer chips are so cool and how much they actually do

    Reply
  87. Tucker

    What a great episode!

    Reply
  88. Kensleigh

    wi- fi was my favorite thing to learn about

    Reply
  89. Maria

    The string like computer chip is so cool!

    Reply
  90. Makenna

    Hey love the video like always!!!

    Reply
  91. Andrew

    Loved the radio subject of this science live video.

    Reply
  92. Garrett

    Thanks for making such great videos

    Reply
  93. Alyna

    Great video this week thank you!

    Reply
  94. Niyasia

    I loved this episode. It was informative and hilarious.

    Reply
  95. Kamilla

    I loved this video!, I am glad i have acellus.

    Reply
  96. Brett

    Thanks ScienceLive!

    Reply
  97. Ismail

    This is why I love science live it’s so interesting.

    Reply
  98. Carter

    Comment I’m from virginia

    Reply
  99. Abigail

    It is crazy how they could compress the computer within threads!

    Reply
  100. Malachi

    What is the blue monster of the galaxy

    Reply
  101. Carter

    that experiment was pretty cool

    Reply
  102. Dihan

    Acellus power!!!!

    Reply
  103. Luci

    What?!?!?!? A computer so small?!? That’s amazing!!

    Reply
  104. Landon

    This video was really cool and interesting!

    Reply
  105. Min

    I really like it! So much fun!!

    Reply
  106. Logan

    Hi from nc

    Reply
  107. Huixin

    Thanks for the video! Posting from China~

    Reply
  108. Kopsouk

    Another appreciated episode. Thank you, Acellus Science Live.

    Reply
  109. Faysal

    How would a thread computer handle heat? I feel like it would overheat every easily.

    Reply
  110. Egin

    I liked this science live it was very funny and interesting and seeing the inside of a computer chip was cool!

    Reply
  111. Jaxon

    I love this thank you

    Reply
  112. Panna

    Insane to think a computer could be compressed into a thread!

    Reply
  113. Solomon

    I thought it was very interesting this week!😍

    Reply
  114. Nacima

    i like r51

    Reply
  115. Kassidy

    Great episode this week.

    Reply
  116. Abraham

    This science live was cool and also I know don’t trust everything on the internet

    Reply
  117. Marie

    My dad and I tried to build a radio, but it didn’t go very well!

    Reply
  118. Mia

    What astonishing videos!!! The you Acellus!

    Reply
  119. Kaylee

    Awesome episode! I always love watching these.

    Reply
  120. Braxton

    I love this video and how you guys made it.

    Reply
  121. Allana

    * I love Science Live!

    Reply
  122. Tasniim

    r51 was so funny and cool

    Reply
  123. Tehilla

    Science live just keeps getting better

    Reply
  124. Gavin

    being able to thread ina computer is cool

    Reply
  125. Jimmy

    they discover tramerter

    Reply
  126. Gianna

    lol funny accent

    Reply
  127. Gavin

    the butterflies were really cool

    Reply
  128. Ceceillia

    Thank you for the great video.

    Reply
  129. Addyson

    I truly look forward to every weeks Science live. It is funny but very informative. From Georgia

    Reply
  130. Xavier

    Does Dr. Rogers love tuned radio’s??

    Reply
    • William

      Apparently
      πŸ˜†πŸ˜†πŸ˜†πŸ˜†πŸ˜‰πŸ˜Ž

      Reply
  131. Dan

    This video is real interesting to learn!! πŸ˜€

    Reply
  132. Reece

    love it, keep up the good work

    Reply
  133. Saifan

    Good evening watching from Bahrain

    Reply
  134. Abigail

    Always learn something new from Science Live

    Reply
  135. Allison

    I can’t believe they fit a computer in a thread.

    Reply
  136. Jessica

    I learned a lot from this video

    Reply
  137. Korrine

    This was a great live!

    Reply
  138. Tim

    Thanks for your job, very interesting

    Reply
  139. Makayla

    Very clear and informative, really enjoyed it thank you!

    Reply
  140. Tinker

    Science live is always so interesting, love it!

    Reply
  141. Davyd

    Wow, having computing technology so thin it can fit in a thread is amazing. Technology is evolving so much!

    Reply
  142. Alex

    I really enjoyed learning about the computer that is a thread.

    Reply
  143. Riley

    I have tried other home school programs, but Acellus is my favorite.

    Reply
  144. Gianno

    hi from north carolina

    Reply
  145. Ellice

    i love I like it it’s my favorite show it’s just like a TV show I love it thank you guys for the science live my favorite it is the best in the whole world I like it it is so fun super fun for me I like it I can watch 100 episodes of these thank you I love it I love to science life my favorite

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  146. Pham

    I like butterflies πŸ¦‹

    Reply
  147. Ania-bianca

    I love Sience Live! Thank you!

    Reply
  148. Emily

    all this genritive ai is making it even harder to know what’s real or not on the internet, too πŸ™

    Reply
  149. Ellice

    Great job I love it 10 out of 10 stars I love this science live thank you for the science live ❀️ ❀️ ❀️ ❀️ ❀️ ❀️ best science live in the whole world it is so fun thank you everybody πŸ’–πŸ’–πŸ’–πŸ’–πŸ’–πŸ’–πŸ’—πŸ’—πŸ’—πŸ’žπŸ’žπŸ’žπŸ’žβ€οΈβ€οΈβ€οΈπŸ₯°πŸ₯°πŸ₯°πŸ˜˜πŸ˜˜πŸ˜˜πŸ˜˜πŸ˜˜πŸ˜πŸ˜πŸ˜πŸ˜πŸ€©πŸ€©πŸ€©πŸŒˆπŸŒˆπŸŒˆ thank you for this show everybody I love you all I just say thank you thank you it’s just like a TV show

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    • Raylee

      YESSS πŸ˜€

      Reply
    • Scarlett

      Yes! I also agree with you, these lives are always awesome.

      Reply
  150. Shayla

    I agree on not believing everything that you see on the internet

    Reply
  151. Cynthia

    Another wonderful live- from Tennessee stay warm out there

    Reply
  152. Joseph

    this is awesome πŸ‘Œ

    Reply
  153. Christopher

    being able to have like a whole computer in a thread in crazy! yet so cool *

    Reply
  154. Adriaan

    the fact that computers are so small now is crazy

    Reply
  155. Leon

    I learned a lot about radio again. The sushi roll computer is so cool.

    Reply
  156. Cooper

    this was so cool from Washington

    Reply
  157. Sofia

    David is such a handsome and silly pirate. The proteges are awesome!

    Reply
  158. Kamana`opono

    Aloha from Hawai’iπŸ€™πŸΎ

    Reply
  159. David

    science live is fun,good!!!

    Reply
  160. Michael

    Nice episode, I really liked it,

    Reply
  161. Benjamin

    im interested in the speed of sound

    Reply
  162. Dexter

    Thank you science live!

    Reply
  163. Simonay

    Very interesting! Love science live!

    Reply
  164. Tue

    R51 radio seems like fun!

    Reply
  165. Kiasmos

    I wanna go to Australia one day. Greetings from Madeira!

    Reply
  166. Hadassah

    What an Amazing video!

    Reply
  167. Ahlam

    i enjoyed this episode a lot!!!

    Reply
  168. Hadassah

    I love science live! I have waited the entire week for it!

    Reply
  169. Wesley

    It is amazing that MIT’s robot is that small and capable of doing so much.

    Reply
  170. Cobus

    I love r51!!!!

    Reply
  171. Hunter

    Being able to have like a whole computer in a thread is crazy! i need that ngl

    Reply
  172. Aaliyah

    I will have to definitely do some research about these Blue Monster galaxies that the scientists at Colgate University have been studying. I am quite curious to see what they look like and what had been discovered.

    Reply
  173. Matthew

    The history of radio is awesome and very interesting

    Reply
  174. Semarah

    this is one of my favorites so far!!

    Reply
  175. Isabella

    all the explanations made me dizzy but its all really cool!

    Reply

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