Vacuum Tube Computing

February 4, 2026  •  EPISODE 296

How did computers go from filling entire rooms to fitting in your hand? In this episode of Science LIVE, Dr. Roger Billings and the Protégés explore vacuum tube computing and the technology that launched the digital age. Hear stories about early machines, the Billings Computer, and floppy disks as Dr. Billings shares his firsthand experiences helping shape modern computing.

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.


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About the Roger Billings Scholarship Program »

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5,811 Comments

  1. Eleanor

    I learned I learned one and zeros on the computer can make anything I also learned that landing on the moon isn’t easy. It’s hard. And. And area 51 is really funny and I like learning about science thank you for teaching me about science. I love how you explain it for me and I love that. I gotta watch science live.

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  2. Adalynn

    We use water to heat and cool our house.

    Reply
  3. Carter

    Hello from Maine

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  4. Jonathan

    I think computers are great and want to learn more about them.

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  5. Amanda

    Loved it Thank you science LIVE!

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  6. Maya

    Thank you for making hard things more simple.

    Reply
  7. Lillian

    I liked learning about how the rockets go to space and how computers work out of ones and zeros.

    Reply
  8. Addison

    I am so glad to be a student this program

    Reply
  9. Rylen

    Learning about computers was very interesting.

    Reply
  10. John

    This was amazing science live! I always learn so much from Science Live.

    Reply
  11. Liya

    loved this video! had a great time watching

    Reply
  12. Marlayna

    I like the story of what the word computer meant back then

    Reply
  13. Arianna

    I really liked the part with Caleb and David, I really have always wondered what happens inside a computer. Thank you for making it possible to learn from these videos! I really enjoy it.

    Reply
  14. Loryn

    I loved the rocket ship part!

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  15. Kylie

    I LOVE BEING ABLE TO WATCH THESE

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  16. Braxton

    I really loved the content in science live.

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  17. Emma

    Super interesting! Can’t wait for next week.

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  18. Laila

    science live is always so entertaining and helpful while learning on acellus, love from texas!!

    Reply
  19. Hailey

    I never knew that NASA had hired seamstress ladies for a project.

    Reply
  20. Hope

    I always love the jokes that they say!

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  21. Mujahid

    Loved the science live and hope to see more of it in the future as well.

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  22. Kaden

    learned a lot thanks

    Reply
  23. Sylis

    These videos are great!

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  24. Aceson

    I got an A+ in history

    Reply
  25. Sofia

    I love science live!

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  26. Shane

    Wow! That many satellites, I winder how much that will cost.

    Reply
  27. Noah

    Why did the vacuum tube not make any money.

    Reply
  28. Natalie

    So grateful i get to be a part of this program! Watching science live is so fun and interesting, i’ve learned so much just from watching these videos.

    Reply
  29. Beau

    What is x ai

    How would you get 1 million satellites?

    That rocket ship would could carry a million satellites.

    Reply
  30. Divine

    The Protégés are the best

    Reply
  31. Charlie

    I learn a lot everytime I watch these videos! And they are really funny!

    Reply
  32. Blair

    I loved what Caleb and David did, amazing work guys!

    Reply
  33. George

    watching from canada 🙂 thank you

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  34. Aruyel

    I enjoyed watching this science live as well as the others!

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  35. Christian

    I wonder if Elon Musk is going to make life livable on the moon.

    Reply
  36. Gabriel

    This weeks science live was great! I’m loving all of them!

    Reply
  37. Noah

    I know the first ever computer took up a whole room. I feel like I remember learning a moth broke it. A computer BUG. My Mom also had floppy disks.

    Reply
  38. Weston

    This was a great science live.

    Reply
  39. Hannah

    I really like the adventure neers!

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  40. Ellie.b

    r51 is SO silly! I want to see more of him!

    Reply
  41. Eliza

    The proteges are hilarious !

    Reply
  42. Bradley

    What is it with the proteges?

    Reply
  43. Alexis

    What is radiate cooling and how does it work ?

    Reply
  44. Jocelynn

    The computer part was cool.

    Reply
  45. Avery

    I wonder how much more computers are going to advance in the future

    Reply
  46. Olivia

    Why do we need astronauts?

    Reply
  47. Ivy

    very interesting about the AI data centers. They tried to build one in my town and thankfully enough residents spoke out against it. The noise pollution is bad and even has a negative effect on wildlife and farm animals. Maybe putting them in outer space is the answer. because it’s very disruptive to rural communities and the environment.

    Reply
  48. Ayden

    Science is my favorite subject. I will be a very famous Scientist one day.

    Reply
  49. Xavier

    I love to watch DR. Rogers on a wensday.

    Reply
  50. Sam

    first time ever watching a science live it was great

    Reply
  51. Jack

    How much water does AI use in a second?

    Reply
  52. Levi

    Computers are insane. The future is going to be amazing!

    Reply
  53. Brayden

    Hydrogen is indeed the new future. I can’t wait until we have hydrogen fuel electric vehicles.

    Reply
  54. Kenny

    Learning about binary code with The Proteges was so much fun! They are so funny.

    Reply
  55. Hayden

    I use computers everyday for school and gaming!

    Reply
  56. Cheyann

    I liked the part with the pilots. This episode was very educational! Thank you so much!

    Reply
  57. Rayleigh

    I always learn so much from your videos. Thank you for making them.

    Reply
  58. Sophia

    This was by far the best science live!

    Reply
  59. Nicholas

    I like this video a lot was very informative and entertaining.

    Reply
  60. Emma

    I love watching every week! Emma

    Reply
  61. Emmalyn

    This one was so funny the pizza and drink misson was so funny!

    Reply
  62. Jedidiah

    I want to make my own computer

    Reply
  63. Lucas

    Very educational. Always look forward to Science Live!

    Reply
  64. Devon

    I learned things I didn’t know so happy to be apart of this program

    Reply
  65. Isryel

    Hello from Puerto Rico!

    Reply
  66. Allie

    I am so glad I was able to learn how computers work!

    Reply
  67. Jerilyn

    I think its funny how the first calculator was named model K because it was invented in the kitchen

    Reply
  68. Lilliana

    This video was so interesting! Thank you!

    Reply
  69. Sophia

    This video was so fun. Thank you for it.

    Reply
  70. Jacob

    Vacuum Tube Computing seems like a very complicated thing. I learned so much during this video, cant wait for the next!

    Reply
  71. Sterling

    Would there be a way to recycle satellites if they’re outdated? It would be interesting to see that.

    Computer differences through time as technology gets better interests me a lot.

    When coding was first used, did they just use 1’s and 0’s? It would be a Intriguing to look at that concept.

    Reply
  72. Jentry

    That’s cool that your company was the second largest producer of floppy disk drives

    Reply
  73. Isaiah

    AI has lots if information.
    Two things used in vacuum tubes are water and electricity.
    Switches were used in early computers.
    Computer languages are made of ones and zeros.

    Reply
  74. Madeline

    I love using my computer, but do not know much about the inner workings.

    Reply
  75. Saylor

    Seeing how fast technology has changed, i am exited to see what technology will be like in the future.

    Reply
  76. Evan

    love the effort put into these!

    Reply
  77. Elaina

    thank you for making this video I love it

    Reply
  78. Carter

    thank you for making me smile every week

    Reply
  79. Colton

    Man it doesn’t surprise me that the military funded the first computer, and I hope Tobias gets felling better!

    Reply
  80. Kahlia

    i love vaccuum tubes

    Reply
  81. Taylor

    What is vacuum tubing?

    Reply
  82. Violet

    I love learning about making a computer!!!!💻 📱

    Reply
  83. Sebastian

    I love learning from Science Live!

    Reply
  84. Trevor

    I liked learning about how the first computer was made!

    Reply
  85. Kelsey

    I learned so much from this video!!

    Reply
  86. Knox

    I love Science Live!

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  87. Kash

    Love from Texas.

    Reply
  88. Hailey

    I think I’d rather stay on Earth.

    Reply
  89. Jay

    It would be terrible to run out of gas in space.

    Reply
  90. Ethan

    I love when Caleb and David do the videos to teach us.

    Reply
  91. Ryleigh

    What a wonderful Live!!! I enjoyed watching it! Computers have come a LONG way!

    Reply
  92. Kent

    I didn’t know that vacuum tubes were used in a lot of things. (:

    Reply
  93. Jenna

    I love acellus so much it teaches me everything I need to know !.

    Reply
  94. Allana

    I love science live!!

    Reply
  95. Tinsley

    It’s so cool that vacuum tubes help amplify signals!!

    Reply
  96. Elvander

    🤩🤩🤩🤩🤩🤩🤩🤩🤩🤩🤩🤩🤩🤩😍😍😍😍😍😍😍😍😍😍😄😄😄😄😄😄😁😁😁😁😁😁😁😁😁😁

    Reply
  97. Brandon

    Thank you. This is a very a fun topic. My dad spoke of “floppy disk” back in his days.

    Reply
  98. Brandon

    science live is the BEST!!!

    Reply
  99. Lex

    I LOVE ACELLUS!!!!

    Reply
  100. Roger

    Crazy how we went from computer rooms to iPhone screens… crazy video this week!

    Reply
  101. Marley

    I loved this soo much

    Reply
  102. Yzell

    Really loved this one can’t wait for next time!!

    Reply
  103. Kailyn

    I can’t believe how big those AI centers are!

    Reply
  104. Isaac

    But wouldn’t putting all that radiated heat out into space cause a possible unknown issue? We could cause universe warming. Just a thought. We don’t know what that could cause. interesting idea though

    Reply
  105. Avaleah

    I always knew getting to the moon was not easy but I never realized how complicated it truly was.

    Reply
  106. Sidney

    I learned so much from this video, I’m glad I was able to watch it!

    Reply
  107. Amelia

    Every science live is always enjoyable.

    Reply
  108. Addison

    I learned so much about binary code, the way that the computers communicate with each other is amazing.

    Reply
  109. James

    this is so cool I literally am watching it again!

    Reply
  110. Kaleb

    It was super cool to learn about the Apollo mission.

    Reply
  111. Cassidy

    I like watching this with my brothers

    Reply
  112. Ariana

    Thank you so much for taking your time to explain as always!!! 🙂

    Reply
  113. Anna

    I💖 r51

    Reply
  114. Jordan

    Love what you’re doing thank you

    Reply
  115. Rosalie

    I love learning new things from you

    Reply
  116. Lucas

    *thank you for the information on vacuum tube computing I would like to learn more about

    Reply
  117. Eliot

    Just one data center uses 2 gigawatts of power. Wow!

    Reply
  118. Kenji

    Very interesting video. It was cool seeing the older computers.

    Reply
  119. Kole

    Wow, vacuum tubes are neat.

    Reply
  120. Luca

    I love Science Live!

    Reply
  121. Liam

    Thank you for all the information, we learned alot!

    Reply
  122. Noah

    I learned a lot from this video, thank you for doing so good and taking your time with it

    Reply
  123. Daymon

    i love science live

    Reply
  124. Dawson

    Such a great episode of Science Live.

    Reply
  125. Tamayea

    Wonderful Science Live!!!

    Reply
  126. Braden

    I can’t wait to see what im gonna learn today!

    Reply
  127. Nora

    How do data-centers work?

    Reply
  128. Noah

    I like seeing how the different components make something work.

    Reply
  129. Andrew

    3rd video and already my favorite!

    Reply
  130. Alexis

    Acellus is the best!!!

    Reply
  131. Aaron

    Hi from virginia

    Reply
  132. Fatimah

    So good! I love these videos.

    Reply
  133. Harper

    I think the concept of this video was really interesting!

    Reply
  134. Kyan

    Who else is watching from Austin Texas

    Reply
  135. Sebastian

    my favorite one so far 10/10

    Reply
  136. Ian

    I liked when Dr Tobias talked about NASA going to the moon and back to earth.

    Reply
  137. Harper

    This video was really interesting and informational!

    Reply
  138. Elliott

    Thank you for Science Live!

    Reply
  139. River

    the size of eary computers is wild!

    Reply
  140. Maverick

    Thank you! this was a great video

    Reply
  141. Jacorrion

    computing is the future

    Reply
  142. Lilianna

    I think it’s funny because David and Caleb go to the movies because they’re not supposed to and they’re inside the movie while in the theater.

    Reply
  143. Ripley

    I like the stuff about going to the moon.

    Reply
  144. Brennan

    I love Acellus live

    Reply
  145. Connor

    I learned a lot from this video, I found it very interesting

    Reply
  146. Matthew

    Elon musk has done some coll stuff

    Reply
  147. Tony

    Do you guys give out scholarships And if you do how do you Sign up for one.

    Reply
  148. Miles

    This was a great episode, thanks Acellus!

    Reply
  149. Mora

    I like learning about space

    Reply
  150. Cole

    computers were so big and heavy now they fit in my lap

    Reply
  151. Lathan

    Happy valentines everyone hope you enjoyed this.

    Reply
  152. Morgan

    I LOVE SCIENCE LIVE

    Reply
  153. Michael

    I love watching these videos and I love science

    Reply
  154. Paisley

    I love being a part of science live

    Reply
  155. Emtsaal

    I learned so much in this science live today.

    Reply
  156. Brinley

    That was one of the best science lives

    Reply
  157. Aria

    technology is cool

    Reply
  158. Kennedy

    This video taught me a lot looking forward to next weeks!

    Reply
  159. Ariel

    I love the fact I can still program for the future

    Reply
  160. Hanna

    I learned some interesting facts in this video it was fun!

    Reply
  161. Elyn

    Happy early Valentine’s Day!!

    Reply
  162. Charlie

    Science Live is great!

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  163. Andrew

    the world is a amazing place!!!!!!

    Reply
  164. Cohen

    I loved this live live I really enjoyed it today

    Reply
  165. Thomas

    How does the radiation just “go away”?

    Reply
  166. Tori

    I learned so much wonderful video

    Reply
  167. Maggie

    This is a great science live

    Reply
  168. Emma

    I wonder if computers will become even more complicated in the future.

    Reply
  169. Lucas

    I learned so much from this video!

    Reply
  170. Kole

    From Nebraska, truly blessed to be watching science live.

    Reply
  171. Omar

    I just love acellus

    Reply
  172. Carson

    this is such a good episode!! from illinois.

    Reply
  173. Dah`vier

    I learned so much thank you for the information.

    Reply
  174. Sawyer

    This is so interesting. I enjoyed this video on vacuum tube computing.

    Reply
  175. Raylynne

    This weeks video was so interesting!

    Reply

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