Binary Decade Counter

February 18, 2026  •  EPISODE 298

How do integrated circuits actually work? In this episode of Science LIVE with Roger Billings, explore the fundamentals of integrated circuits with a closer look at a binary decade counter and how it processes and counts electrical signals.

Learn more about the Acellus Robot Dance Contest and Acellus World, coming to Kansas City in May 2026! And get ready to discover fascinating science in the natural world—from hydrophobic spiders that repel water to the surprising fact that rainbows include invisible colors beyond what our eyes can see.

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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5,570 Comments

  1. Max

    water spiders are pretty cool

    Reply
  2. Joshua

    WILL YOU PLEASE MAKE A BLOCK WERE AC D2 SINGS ON THE AC D2 ACTIVITIY 🙂 🙂 🙂 🙂 🙂 🙂 🙂 😉 😉

    Reply
  3. Scarlett

    This science live was awesome!

    Reply
  4. Christopher

    R51 is so funny

    Reply
  5. Catie

    Science live is the highlight of my week!

    Reply
  6. Dean

    What was the chemical composition that R51 put in the serum?

    Reply
  7. Keirstyn

    I really liked this episode, it was super entertaining. It was cool to learn how circuits are actually easy to make they just need a lot of energy.

    Reply
  8. Lily

    I loved this science live!!!!!

    Reply
  9. Aliyah

    Loved this live! Im very interested in spiders and would love to learn more about them!

    Reply
  10. Elliana

    I loved this video with spiders, circuits, and light splitting. THANK YOU FOR IT 🙂

    Reply
  11. Toleen

    Science Live is the best 🥰🥰

    Reply
  12. Walter

    I really liked ACD2 dance that was so funny!

    Reply
  13. Aidan

    I love the teacher drink in this one.

    Reply
  14. Mohamad

    Another day of Science Live and I’ll never get tired of it especially when R51 is being a goofball. I knew water spiders existed but it was cool to learn about them and really loved the parts with circuits because I wanna do a career in maybe Engineering or Electrical. Very cool video today!

    Reply
  15. Fiona

    I enjoyed learning about water spiders

    Reply
  16. Aaron

    science live always teaches me something cool!

    Reply
  17. Morgan

    Loved this vid especially with the spiders can’t wait to see next weeks

    Reply
  18. Aria

    I enjoyed todays class.

    Reply
  19. Scarlet

    With the super hydrophobic material do you think its possible to make hydrophobic roofs, showers, and flooring? Maybe even fabric if done right?

    Reply
  20. Sariah

    I really liked this science live episode and I like the science protégés!

    Reply
  21. Sofia

    I loved today’s science live!it’s so cool how they made the metal super hydrophobic so it doesn’t get wet.Btw from Texas

    Reply
  22. A`mariya

    It was really interesting to learn about the water spiders, I had no idea there was a species that lived entirely underwater.

    Reply
  23. Tinlee

    I loved the video for the spider and the robot!

    Reply
  24. Tess

    I love to learn new and weird facts!!!!

    Reply
  25. Abygale

    Hello from Montana, I love watching science live!!!

    Reply
  26. Zander

    i love science live i learned alot about that spider

    Reply
  27. Rosalie

    I loved the water spider part

    Reply
  28. Levi

    I loved this science live! It was so cool to learn about the water spider.

    Reply
    • Bryce

      I wish I could come to the Accellus World, but my mom is sick with cancer. Maybe I can go there next year. Thank you for making it available online this year.

      Reply
    • Nora

      I love science live.

      Reply
    • Ryder

      I loved this episode it was so cool.

      Reply
  29. Sterling

    I loved this video with spiders, circuits, and light splitting. I learned so much and I love R51 he’s such a goofball🤣😂

    Reply
    • Benjamin

      What is hydrophobic?

      Reply
    • Katie

      True!!!!!! R51 is hilarious.

      Reply
    • Christopher

      I love all the information about the circuits! Science is so cool!

      Reply
    • Luke

      He is very funny

      Reply
  30. Aerolynn

    I really like how mirrors can reflect the colors of the rainbow.

    Reply
    • Malloree

      I love science live! it was awesome to learn about water spiders!

      Reply
    • Aaron

      That was all so cool!

      Reply
    • Santiago

      hi from texas

      Reply
  31. Layne

    It is really cool how circuits need so much energy but it’s really easy to make.

    Reply
  32. Cayden

    I found myself intrigued with the binary decade counter and how they work, as well as the water spiders! I look forward to next week, keep up the good work!

    Reply
  33. Lyndee

    I never knew that electronics could do this! Than you so much for the new Science Live video!

    Reply
  34. Annelisa

    I loved the potoges presentation today

    Reply
  35. Emily

    the water spiters were super cool it was my faverite thing in todays live

    Reply
  36. Jazzelle

    that spider looks so cool!!!!!!!!!!!

    Reply
  37. Weston

    the super aquaphobic material can be used for phones and electronics so that they don’t get wet and malfunction. From South Carolina.

    Reply
  38. Erika

    Hello, This is Erika from Texas. I enjoy this hour. This is great information, especially the students’ personal experiences sections. Maybe one day I can be there.

    Reply
    • Katie

      Um, I would like to know what state or country science live is in. I live in alaska.

      Reply
    • Ziva

      Me too 🥺

      Reply
  39. Aedan

    This episode was interesting and easy to follow. The science demonstrations made learning about circuits more fun.

    Reply
  40. Jaxon

    R51 is so imaginative

    Reply
  41. Joshua

    the first joke lolol

    Reply
    • Mohamad

      Yeah lol, that was funny!

      Reply
  42. Hunter

    Are we going to be able to buy that little robot online?

    Reply
  43. Ellison

    How many flip-flops are needed

    Reply
  44. Owen

    i did not know differant colors of light had differant temps

    Reply
  45. Selena

    I like learning about circuts. Thank you.

    Reply
  46. Rylee

    How do you put your hand in a rainbow?

    Reply
  47. Khloe

    I love science live

    Reply
  48. Darlene

    Omg thats sooo cool i wish i could de somthing like that

    Reply
  49. Maximus

    circuits are so cool

    Reply
  50. William

    I love ACD2

    Reply
  51. Liam

    VEry interesting video loved to watch it

    Reply
  52. Lucas

    Water spiders are really cool.

    Reply
  53. Noemi

    cool video!! i loved when the robot was singing now i want one see you next wensday!

    Reply
  54. Evangeline

    Hi from nc

    Reply
  55. Rosalie

    MERRY WENDSDAY!!!

    Reply
  56. Cally

    I love in the video that it’s not just one person there are many more! It is very educational and I like it a lot!

    Reply
  57. Annabelle

    hi from texas

    Reply
  58. Marc

    this is the best live I have ever seen☺️ love you Roger.

    Reply
  59. Lia

    Hey from Texas!

    Reply
  60. Madelyn

    Maddie fro San Antonio Texas. I would like to study waves and the energy they provide as a natural energy source.

    Reply
  61. Landon

    First time in attendance. So excited to learn.

    Reply
  62. Sophia

    I love the idea 💡

    Reply
  63. Madison

    Such a good live!!

    Reply
  64. Arkaisha

    Hiii from SC!

    Reply
  65. Angelina

    Angelina from Miami love this class

    Reply
  66. Madelyn

    How would you describe binary to a 3rd grader?

    Reply
  67. Benjamin

    If infared light is heat, then does the sun’s heat travel at the same speed as it’s light?

    Reply
  68. Riley

    Hi from West Virginia

    Reply
  69. Dillon

    Hello from Wisconsin! Excited for another Wednesday night live!

    Reply
  70. Landon

    Water Spiders better not get near me ever!

    Reply
  71. Eli

    your videos make my day

    Reply
  72. Eden

    Enjoyed tonight’s science live!

    Reply
  73. Haysten

    Wow that is a really cool how he made that. One of my friends has a 3D printer.

    Reply
  74. Aria

    I never knew the origin story about inferred light. So so so interesting.

    Reply
  75. Andrina

    Great video hope everyone had a great day!

    Reply
  76. Charlotte

    Hi from nc

    Reply
  77. Liam

    hi from ohio

    Reply
  78. Mason

    Mason from Texas thanks for talking about wave power

    Reply
  79. Jeff

    Hi from Illinois

    Reply
  80. Gracey

    This is my favorite video so far!

    Reply
  81. Kenleigh

    Loved this video!

    Reply
  82. Ray

    Hello from Japan. Thanks for the Science Live today.

    Reply
  83. Joshua

    Could the hydrophobic tech worked on something like a hockey skate blade

    Reply
  84. Waylon

    Every time I watch these they teach me a lot. There is alot of stuff that I never knew so it is always interesting

    Reply
  85. Kai

    Can’t wait for the next science live!

    Reply
  86. Brady

    I love acellus

    Reply
  87. Zuriah

    That was so cool!!

    Reply
  88. Mason

    We could make a better floating submarine with the floating aluminum.

    Reply
  89. Jonnie

    Never knew it was called infrared, (from Canada)

    Reply
  90. Timberly

    I love my SEL class it has helped me out alot. I recently pulled out of public school due to bullying and this has helped me with my emotions.

    Reply
  91. Garren

    People can learn a lot from animals. They can adapt better than people and survive diseases that people can’t.

    Reply
  92. Alexis

    I love learning with Acellus!

    Reply
  93. Melanie

    I like the light part.

    Reply
  94. Nehemiah

    Science is my favorite

    Reply
  95. Emylia

    that was a cool dance 🙂

    Reply
  96. John

    What are logic gates?

    Reply
  97. Ezra

    I have an idea for a flood resistint house!

    Reply
  98. Julianna

    I love science, thank you for keeping me educated!

    Reply
  99. Saifan

    Good morning, enjoying from Bahrain

    Reply
  100. Ava

    I don’t like spiders but that is cool how they make a web under water to breathe.

    Reply
  101. Mia

    Spiders creep me out but wowww!!

    Reply
  102. Mia

    Mia from Texas I always wandered about waves and energy

    Reply
  103. Kendal

    Greetings from Ohio!

    Reply
  104. Melanie

    I love science! This is my favorite video to watch!

    Reply
  105. Wesley

    I am very terrified of spiders but seeing that water spider and how it makes like a web under that water is cool. I liked seeing how metal floats aswell!

    Reply
  106. Keelan

    R51 is so funny!

    Reply
  107. Kalel

    It’s very interesting how metal can become hydrophobic because of a pattern being etched on it. 🙂

    Reply
  108. James

    Hi from Alaska!!!

    Reply
  109. Elysia

    hi from nv

    Reply
  110. Faith

    This was a pretty incredible episode!!

    Reply
  111. Emma

    It’s cool how it can be different by using a flip flop, Also it’s cool how it works.

    Reply
  112. Tyler

    Science Live has taught me so much more about science.

    Reply
  113. Breleighfaithe

    I love these videos

    Reply
  114. Amaya

    I thought the live was very interesting today.

    Reply
  115. Hayden

    Love it! Thank you for another great live!!

    Reply
  116. Isabella

    I was always scared of ever encountering bugs in the water, but strangely enough not water spiders/

    Reply
  117. August

    that was the best one yet!!!

    Reply
  118. Trystyn

    hello from idaho

    Reply
  119. Eduardo

    Hello from Texas!

    Reply
  120. Jake

    I like the split light.

    Reply
  121. Julianna

    Sorry, Hi from Texas!

    Reply
  122. Evalina

    I love these lives and water spiders are so cool!

    Reply
  123. Dallas

    I really enjoyed todays video

    Reply
  124. Adrian

    Loved the Video, Cant wait for next week

    Reply
  125. Noah

    Its amazing that a water spider has hair on its back that can hold a bubble!

    Reply
  126. Talon

    How many years does it take to become a scientist?

    Reply
  127. Ayden

    Hi from ohio!

    Reply
  128. Clyde

    Hello from VA.

    Reply
  129. Dollie

    Water spiders remind me of water gliders

    Reply
    • Graceson

      What does the water spider eat?

      Reply
  130. Kimberly

    It is really cool how light can be split into multiple colors and each color has a different temperature.

    Reply
    • Bennett

      these videos are always so informational

      Reply
    • Matthew

      It is cool to think about how you can use light in different colors.
      Is there any inventions that already use it like this?

      Reply
  131. Euleah

    i have seen a lot of science teachers and videos of different people its cool.

    Reply
    • Blair

      Cool! Can’t wait for next Wednesday

      Reply
    • Kiptyn

      Hello from Montana

      Reply
  132. Maknzie

    This was really cool!

    Reply
  133. Stockton

    This is so cool!

    Reply
  134. Colin

    This is awesome

    Reply
  135. Kamren

    seeing metal float is cool

    Reply
  136. Lilly

    Circuits and how they work/operate are very interesting!

    Reply
  137. Audrey

    I really enjoyed todays video it was vary educational and I learned a lot

    Reply
  138. Addison

    I’m totally a flip flop!!

    Reply
  139. Loveah

    i love 51!!

    Reply
    • Gloriah

      Amazing 🚀

      Reply
  140. Mary

    I hope everyone is doing well. 🙂

    Reply
  141. Chayce

    Great video, Sciece is way cool.

    Reply
  142. Julio

    so cool☄️

    Reply
  143. Marco

    Love to see the robots DANCE

    Reply
  144. Zander

    hello from idaho

    Reply
    • Santiago

      Hello from Texas!! Very happy for another week

      Reply
  145. Eli

    This one was probably my favorite live so far

    Reply
  146. Jason

    This was my first live stream and it was cool.

    Reply
  147. Hinley

    how did you get in to science

    Reply
  148. Eli

    Hey from Texas!!

    Reply
  149. Braelyn

    hi from mississippi

    Reply
  150. Liloh

    That’s so cool!

    Reply
  151. Aubryanna

    Excellent video,Science is so fun.

    Reply
  152. Valentina

    You are amazing teachers!

    Reply
  153. Alex

    Hellooo science live

    Reply
  154. Brielle

    Hi from Washington!

    Reply
  155. Logan

    Hi from Maine!

    Reply
  156. Marie

    Hehe; deboledeboledoo is ‘I like your shoes?’ Bruhhhh

    Reply
  157. Gavin

    How many videos do the teachers make in a day?

    Reply
  158. Quinn

    Today’s live was so cool! Hi from Maine!

    Reply
  159. Trinity

    I love this you should do more like these!!!

    Reply
  160. Sydney

    Hi from CT!!

    Reply
  161. Victoria

    Hi from idaho

    Reply
  162. Wyatt

    I learned that the water spider make a web underneath it that holds oxygen, allowing it to breath underwater.

    Reply
  163. Ryder

    hello from illinois

    Reply
  164. Luke

    luke here watching from Texas

    Reply
  165. Paul

    awesome live like always

    Reply
  166. Felicity

    I loved this episode of science Live!!

    Reply
  167. Kylie

    Hi from ct

    Reply
  168. Mason

    How many numbered circuits are there?

    Reply
  169. Abigail

    The metal floating was cool!

    Reply
  170. Harrison

    I wonder if they make info red goggles.

    Reply
  171. Dy'kei

    I leaned about technology water spider it was good and cooooooooooooooooooooooooooooooooooooooooooooooooooooooool area 51 was good acd2 was cool.

    Reply
  172. Hagan

    🙂 science liiiive

    Reply
  173. Jayla

    This helped me learn so much more than i expected thank you

    Reply
  174. Marlowe

    Hi from Florida!

    Reply
  175. Ashlynn

    Great live!! I love these lives!

    Reply

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