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. Vance

    i thought it was intresting when the group got together and created wifi. Very, very cool

    Reply
  2. David

    This episode was very interesting!! Love learning new things everyweek!! Science rules!! Hello from idaho!

    Reply
  3. Avery

    what do you think computers will be like in the future? Thank you and have a nice day.

    Reply
  4. Isabella

    This was so cool

    Reply
  5. Noah

    Thanks for another great episode of Science Live! Watching from Texas

    Reply
  6. Zachary

    Another great episode of Science Live! I always look forward to watching them each week!

    Reply
  7. Hadassah

    I think this was one of the more interesting episodes

    Reply
  8. Kyleigh

    These science lives are so helpful and interesting thank you!

    Reply
  9. Gavin

    It’s hard to believe how small an entire computer can be.

    Reply
  10. Addison

    Hi from texas

    Reply
  11. Francisco

    IT’S SO COOL AND FUN

    Reply
  12. Ruby

    awesome video once again! so informational! *

    Reply
  13. Bethany

    Technology is so advance. Its crazy what they can do.

    Reply
  14. Jacob

    this episode is very cool and I got to learn about how the internet went from dial up to wireless

    Reply
  15. Tinley

    its cool that i can just watch something about new science every week!

    Reply
  16. Win

    I like the radio!

    Reply
  17. Ava

    “Wireless and Fidelity” hahahahahaha hilarious! From Florida.

    Reply
  18. Owen

    Radio is very very interesting!

    Reply
  19. Salem

    I’ve been wanting to learn more about radios recently; watching this science live was really enjoyable!

    Reply
  20. Camden

    I had no idea that was how a radio worked! So COOL!

    Reply
  21. Huchingson

    I love Science Live! 😀

    Reply
  22. Alison

    Very good video!

    Reply
  23. Emily

    Love science live! From Greensboro North Carolina!

    Reply
  24. Nicholas

    I really enjoyed this one!

    Reply
  25. Liam

    Building my own radio sounds fun and learning about wi-fi. Also I really want to do the aviation coarse.

    Reply
  26. Aubrey

    This one was so funny! I love listening to music and I like how I can do it through a radio!

    Reply
  27. Rori

    Amazing as always!

    Reply
  28. Adyn

    This is a very cool and interesting topic

    Reply
  29. Charlie

    I think it would be neat to have that radio available to buy on the gold store

    Reply
  30. Lily

    A radio kit would be awesome!

    Reply
  31. Addy

    Wow! that thread is awesome!

    Reply
  32. Daniel

    very informative video and i enjoyed it very much

    Reply
  33. Lianni

    I loved everything i learned today, especially learning how the radio worked!

    Reply
  34. Elias

    you should make the radio kit!!!

    Reply
  35. Ella

    It would be cool to see the radio in the gold shop, it’s really cool. Talking from Wisconsin!

    Reply
  36. Hailey

    I enjoyed listening to you discuss the “blue mountain “ galaxzy. Are the dark stars located there as well?

    Reply
  37. Robert

    I love science live!

    Reply
  38. Jade

    Computer in thread mind blown!!!!!!!! I’am glad california kids joined Acellus

    Reply
  39. Chayton

    I love watching Science L!ve. Its so cool how radios work and how they came to be. Dr. Roger Billings you are such a great mentor. I never knew that this school could teach me so much. I will never forget this program.
    Thank you.

    Reply
  40. Jimah

    I LEARNED ALOT FROM THIS LIVE AND I ALSO HAD MY SPANISH MID TERM EXAM AND MADE A 100!!!

    Reply
  41. Trey

    great video! hello from kansas!

    Reply
  42. Mohamed

    This episode was interesting.

    Reply
  43. Galbraith

    This episode was very interesting! I love Science Live!

    Reply
  44. Kaylee

    Thank you for the Science Lives!!

    Reply
  45. Mohamed

    This episode was so interesting.

    Reply
  46. Candon

    Science is the best.

    Reply
  47. Eku

    You can send a message across the sea

    Reply
  48. Yosmel

    Science is developing really fast now!

    Reply
  49. Kayley

    I enjoyed my classwork today. Thanks for letting me do school from home.

    Reply
  50. Candace

    i hope you guys are having a good week!

    Reply
  51. Judah

    It was very neat hearing about the computer in a thread and being able to make your own radio. Think you

    Reply
  52. Braxton

    Who else loves science like me

    Reply
  53. Brooks

    the radio box is super unique

    Reply
  54. Ka`lane

    cool science live.

    Reply
  55. Makhosazana

    Amazing episode and so very entertaining. Please continue featuring the Inventioneers!

    Reply
  56. Aubrey

    Science live is so fun!

    Reply
  57. Clairemoana

    I loved this live!

    Reply
  58. Addison

    I enjoy this so much !!

    Reply
  59. Nicholas

    Who would’ve imagined that a sushi roll would inspire such a great technological advancements.

    Reply
  60. Leela

    I loved this!!!!!!!!!!!! hi from texas guys

    Reply
  61. Brice

    Hello from Iowa it interesting to see the progression of computers and radio over time and it would be interesting to see what they will look like in the future!

    Reply
  62. Skylar

    Hello from North Dakota

    Reply
  63. Lysia

    Hii!! This live is one of my favs!!

    Reply
  64. Bennett

    this is so interesting its crazy how much u learn from these

    Reply
  65. Clay

    What will you guys do on episode 300?

    Reply
  66. Mason

    so so neat! thank you

    Reply
  67. Randhir

    should i be worried about a whole computer being the size of a mere thread…??

    Reply
  68. Brynna

    This was really interesting

    Reply
  69. Rodrekus

    i loved how long the video was and how much i’ve learned from it!

    Reply
  70. Jordan

    Acellus is the best program.

    Reply
  71. Anouk

    Science live is cool >:3

    Reply
  72. Owen

    My mom said when she was little the computers where really big. She was surprise to see that the computers are just a string.

    Reply
  73. Charles

    How would one even just decide “you know what? Why don’t we just make a computer… but it’s thread” like how do you even come up with that idea in the first place 😮

    Reply
  74. Kiely

    The pirate skit was so funny! Radios are super interesting to me like how they’ve developed throughout the years.

    Reply
  75. Jacqueline

    Watching from Chicago!!

    Reply
  76. Valerie

    This Science Live was awesome! Also, the “pirate bit” was funny. And R-51 is really funny!

    Reply
  77. Emma

    Wow I’ve learned so much! From Tennessee!

    Reply
  78. Alexandra

    I learned so much from this

    Reply
  79. Vivian

    I learn something new every time I watch these, super cool!

    Reply
  80. Liam

    I would like to build a radio. Please put in the Gold Store. Thank

    Reply
  81. Zuleyka

    It’s quite fascinating that Sullivan went from black holes to wireless internet! Good thing he remembered his equations for his black hole system. The wireless internet is awesome!

    Reply
  82. Liam

    thank you for making such cool videos! cant wait for the next one!

    Reply
  83. Hayden

    I really enjoyed this video.

    Reply
  84. Charles

    Cool to hear about Australia and Csiro, I wanna live there! Never knew so much about wireless communication either before this video.

    Reply
  85. Linh

    I like Motorola because it helps people communicate.

    Reply
  86. Skyla

    I like the 1990’s computer.

    Reply
  87. Haley

    Todays live was so funny and interesting I loved the jokes!

    Reply
  88. Jaxton

    Another great science live! So crazy how wifi was made, and named! Lol sometimes some things so complex seeming can be so simple!

    Reply
  89. Vivian

    I learn something new every time I watch these, so cool!

    Reply
  90. Braxton

    who else loves science like me

    Reply
  91. Ember

    I loved learning this week, thank you

    Reply
  92. Joie

    Hellooo from georgia

    Reply
  93. Archer

    I loved this weeks science live. Coming from Texas.

    Reply
  94. Elena

    the last science live episode was so cool! I can’t wait for the next episode

    Reply
  95. Savannah

    I LOVE SCIENCE LIVE!!

    Reply
  96. Aubree

    So cool ! I’m also in Missouri, like the Acellus HQ !

    Reply
  97. Aydin

    Thanks for another live 🙂

    Reply
  98. Jeremiah

    Hi I think that’s cool you can have technology in a little string I think it could be bad or good, and I think the radio kit sounds really cool thanks.

    Reply
  99. Yzabella

    I love science live!

    Reply
  100. Divinity

    I love learning random things about science

    Reply
  101. Lea

    This was so interesting to watch, the ends are always so fun!

    Reply
  102. Caleb

    The knowledge of Dr; R is so encourging to really study Science,

    Reply
  103. Helena

    From michigan
    I ❤️science live

    Reply
  104. Madeline

    The string technology was amazing and I think the radio would be great. I’m also excited to see the new helicopter class!

    Reply
  105. Alivia

    Radio’s are one of the neatest inventions!!

    Reply
  106. Brendan

    this was a really informal video I really liked this one from tennessee

    Reply
  107. Haleiya

    I really enjoyed today’s episode. I like the funny parts they make me laugh. Thank you Ha’leiya

    Reply
  108. Connor

    Another great topic to learn about!

    Reply
  109. Parker

    very cool video this week!

    Reply
  110. Adrienne

    As someone who was in public school up until 6th grade, acellus significantly improved my academic experience along with my willingness to learn. Definitely some of the best teachers I’ve ever had too.

    Reply
  111. Autumn

    I look forward to these videos every week !

    Reply
  112. Tristan

    Hi! Coming from texas!

    Reply
  113. Isabella

    I like the winter butterflies

    Reply
  114. Stone

    Watching from Idaho!

    Reply
  115. Nado

    Love science lives!

    Reply
  116. Aubrey

    Great science live! Enjoyed it!

    Reply
  117. Nono

    I learned so much

    Reply
  118. Hunter

    cant wait for next week.

    Reply
  119. Khole

    Almost Friday 😉 hello everyone!!!!!!!!!!!!!!!!!!!!!!!

    Reply
  120. Arista

    I love the experiments you guys show! Great episode!

    Reply
  121. Madison

    Thank you so much for this live class! I love tuning in!

    Reply
  122. Nora

    Based off the video I just watched it teaches me about science and the science of technology. This helps me with science because I learned a lot of things like how science technology works.

    Reply
  123. Colby

    i love science live I look forward to it every week

    Reply
  124. James

    I love science live!

    Reply
  125. Juliet

    the computer thread was so cool! and the pirate acting was funny lol.

    Reply
  126. Joseph

    i think that having a radio would be cool

    Reply
  127. Chalanthorn

    how do radio works?

    Reply
  128. Ambrosius

    The pirate skit was great! Thank you Acellus Team!

    Reply
  129. Zayne

    How did John Sallavin make his equations pull apart data?

    Reply
  130. Amelia

    Smart clothes is crazy!

    Reply
  131. Avie

    seeing other kids learn like me is cool

    Reply
  132. Pablo

    haha, the start was funny! Great video, very interesting stuff this episode.

    Reply
  133. Brooklynn

    So if tuning a radio is basically picking one frequency out of a bunch, how does the radio actually block out all the other stations instead of mixing them together?

    Reply
  134. Vonn

    my mom said those stats about passing grades made her feel relieved

    Reply
  135. Lilliana

    Enjoyed wednesdays video

    Reply
  136. Wade

    Tuning in from georgia love science live

    Reply
  137. Helios

    Loved learning about the origins of Wi-Fi! Great episode tonight.

    Reply
  138. Meaghan

    Super fun! I love your lives, they’re so entertaining. By the way, you should make a shark profile on the animal avatars since I haven’t seen one yet. I love sharks and it would be awesome.

    Reply
  139. Olivia

    watching from missouri!!

    Reply
  140. Lovelyn

    Science live is good for us

    Reply
  141. Andrew

    Yes to radio diy in shop please

    Reply
  142. Claire

    I love the info these vids give

    Reply
  143. Lincoln

    I really enjoy science live! Thank you!

    Reply
  144. Rohen

    very cool computers

    Reply
  145. Kayla

    thanks for the lesson

    Reply
  146. Nicole

    I wonder how computers will be like in the future..

    Reply
  147. Cecilia

    This is very interesting!

    Reply
  148. Cadence

    Having what’s essentially a full computer living inside a thread is kind of mind-blowing.

    Reply
  149. Fiona

    Enjoy watching it! Thank You So Much!

    Reply
  150. Hezekiah

    can’t wait till next week

    Reply
  151. Axel

    Radio waves have interested me, glad to have been here for this science live!

    Reply
  152. Hailey

    I would love the option to get that kit for the radio

    Reply
  153. Violet

    Hi from Colorado

    Reply
  154. Hailey

    I would love the option to get that kit for the radio .

    Reply
  155. Derek

    Wow this was cool, cant wait for next weeks.

    Reply
  156. Alyssa

    best one yet, loved the fact about the computer!

    Reply
  157. Thanithpong

    How do you amp up the radio waves?

    Reply
  158. Bryce

    This is a pretty nice episode!

    Reply
  159. Katy

    Thank you so much!

    Reply
  160. Phoebe

    such a cool topic love science live

    Reply
  161. Jared

    Thanks for such an amazing science live!!

    Reply
  162. Nathan

    I really like the Protégé’s part of Science Live. I also was so interested in learning about the computer as thin as a fishing line, it was very interesting.

    Reply
  163. Dianna

    Amazing video! I learned so much!

    Reply
  164. Fatima

    Watching these live streams from LV is so cool!!

    Reply
  165. Ashton

    The part about Wi-Fi was cool.

    Reply
  166. Nate

    wow i didn’t know all this radios are amazing and yes you should put the r51 radio in the shop

    Reply
  167. Ariana

    let’s make radios!!

    Reply
  168. Clark

    Imagine if you could see wifi.

    Reply
  169. Aiden

    Interesting topic very love all the insight and knowledge that comes from this!

    Reply
  170. Larahlyn

    I never knew you could just put workable things in a line of thread.

    Reply
  171. Chad

    Hello from Texas.

    Reply
  172. Samantha

    Here from TN

    Reply
  173. Ella

    I found the butterfly’s really amazing!!

    Reply
  174. Kaitlyn

    I love acellus

    Reply
  175. Harry

    Great episode! Always learn so much from the Science Live sessions

    Reply

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