The Collision Problem That Crippled Ethernet (And How We Solved It)

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Ever wonder how computers actually talk to each other over a wire? In this episode of ScienceLive, we break it all down — starting with the earliest Ethernet networks running over coaxial cable, through the switch to Cat5 cabling, and into the fundamental building block of all network communication: the packet.

You’ll learn what packets are, how they carry your data across a network, and why early Ethernet had a serious flaw — data collisions that could bring an entire network to its knees. We explain why collisions happen and what they mean for the data you’re trying to send.

Then comes the part we’re most excited about: how my team and I discovered a solution to stop packet collisions entirely, leading to the invention of WideBand networking. In this episode we give you the teaser — next week, we’ll teach you exactly how it works.

This lesson is for anyone who wants to truly understand computer networking from the ground up — how Ethernet came about, how it works, and where it’s headed.

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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2,990 Comments

  1. Nathan

    I love this

    Reply
  2. Madison

    hi from ms

    Reply
  3. Victoria

    Im so excited!

    Reply
  4. Isabella

    hi from tennessee

    Reply
  5. Micah

    im gonna finish highschool in like 2.5 years.
    thank you acellus

    Reply
    • Sciencelive

      Micah that is so exciting, you are so close! Keep up the good work!

      Reply
  6. Nathan

    hi from North Carolina

    Reply
  7. Elijah

    hi from south Carolina
    \\

    Reply
  8. Olivya

    I’m so excited for this live!!

    Reply
  9. Isabella

    hey from tennessee

    Reply
  10. Mizuanne

    Hello from Aubrey, Texas!!

    Reply
  11. Madelynn

    Hello from Sugarland, TX

    Reply
  12. Alice

    So fun! I always learn so much

    Reply
  13. Espen

    I love the science lives there amazing, from wv

    Reply
  14. Mckenzie

    Nice video!

    Reply
  15. Leana

    happy Wednesday from Tennessee

    Reply
  16. Sarah

    who invented the ethernet cables/ who patened them?

    Reply
    • Cole

      Hi from NV!!!!

      Reply
  17. Payton

    amazing live

    Reply
  18. Jonnie

    hello from Canada

    Reply
  19. Caleb

    I love science live

    Reply
  20. Jayden

    Hello from NJ!

    Reply
  21. Maleah

    Comment hello from Tennessee

    Reply
  22. Isabella

    I love watching science!!

    Reply
  23. Daniel

    Hello from oklahoma

    Reply
  24. Jordyn

    Awesome!!

    Reply
  25. Kaylee

    I loveeeeee science live night

    Reply
    • Sciencelive

      Hi Kaylee, thank you for joining us!

      Reply
  26. Elijah

    hi from south carolina

    Reply
  27. Sydney

    See ya next time R51!! This was cool.

    Reply
  28. Benjamin

    I love watching science live! I always learn so much!

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  29. Joseph

    Hello from Georgia!

    Reply
  30. Elizabeth

    I love to learn!

    Reply
  31. Aubrie

    Hello from TX !! Have a blessed Wednesday everyone!

    Reply
  32. Emma

    I love science live!

    Reply
  33. David

    Hi from Mexico

    Reply
  34. Alliana

    I didn’t know there was ever an issue with Ethernet. That’s neat!

    Reply
  35. Mason

    Great science live! Great work every buddy!

    Reply
  36. Kardyr

    Hi from Kansas

    Reply
  37. Ricardo

    Hi, im here because of science live, and its awesome, funny, epic, and exiting

    Reply
  38. Levineah

    Tuning in from Georgia!

    Reply
  39. Raya

    hi from AL

    Reply
  40. Hannah

    this is so cool

    Reply
  41. Grace

    This live was so interesting! Can’t wait for next week’s science live!

    Reply
  42. Trenton

    I’m here from Georgia!! Ready for another awesome live.

    Reply
  43. Noah

    My family and I love Acellus! The way Dr. Billings is always looking for ways to help so that more students can attend Acellus is Wonderful!

    Reply
    • Sciencelive

      Hello Noah! We love to hear that you and your family love Acellus, hopefully we will see you at Acellus World!

      Reply
  44. Camden

    Great live!

    Reply
  45. Zoe

    I love learning on here! Love from Jersey!!!

    Reply
  46. Hailey

    I loved learning about how watchmakers first tried to keep the second “on time”…a tiny tuning fork is an amazing idea!

    Reply
  47. Kimaria

    I love watching science lives.

    Reply
    • Sciencelive

      We love having you! Thanks for watching!!!

      Reply
  48. Alden

    Good evening from Georgia!

    Reply
  49. Caleb

    Hi from Hawaii

    Reply
    • Sciencelive

      Hello Caleb, welcome!!

      Reply
  50. Tylah

    Science live is so fun!

    Reply
  51. Kyra

    Good evening from TN!!

    Reply
  52. Rile

    HI from Nebraska!

    Reply
    • Sciencelive

      Hi Rile! Thanks for tuning in.

      Reply
  53. Tristen

    Hello, this was very interesting

    Reply
  54. Kaydence

    Hello from Texas.

    Reply
  55. Gabriella

    Hello from hawaii, I loved the video I learned some new things today

    Reply
  56. Maleah

    Is this Wednesday April 8th science live?👩🏼‍💻

    Reply
    • Sciencelive

      That’s right Maleah – thanks for joining us!

      Reply
  57. Peyton

    I love watching science live! I always learn so much!

    Reply
    • Lydia

      My computer has a motherboard that doesn’t have WiFi and I have to use the Ethernet cable to play online games. I think it’s cool I get to learn more about it today.

      Reply
    • Brayden

      I love Sciencelive

      Reply
    • Xander

      Hello from maine

      Reply
  58. Hayden

    Hello from GA! Happy Wednesday!

    Reply
  59. Rowan

    Good evening from Georgia!

    Reply
    • Layla

      Hello from Montana

      Reply
  60. Rylee

    rylee here from reno nevada!

    Reply
  61. Evangaline

    That’s awesome

    Reply
    • Layla

      Hey from Montana

      Reply
  62. Ava

    I enjoyed learning more about science as always!

    Reply
  63. Jose

    Hello from New Mexico 😊

    Reply
    • Mckenzie

      Love the video this week!

      Reply
  64. Ian

    Hi there everybody I am watching from Alabama

    Reply
    • Lucciano

      Hi everyone!

      Reply
    • Sciencelive

      Hi Alabama!

      Reply
  65. Luna

    Artemis is so cool

    Reply
  66. Michael

    hi from Georgia!! I love science live!!

    Reply
    • Sciencelive

      Hi Michael! Thanks for joining us!

      Reply
  67. Preston

    The show is amazing!

    Reply
  68. Gabriella

    This sounds like an exciting episode I’ve always wanted to no more about it!

    Reply
  69. Brendan

    The fact that we experienced Artemis is crazy because it is history in the making”.

    Reply
    • Ellie

      This was a very interesting video!!

      Reply
  70. Yareliz

    What was the collision problem?

    Reply
    • Sciencelive

      Watch and find out! 👀

      Reply
  71. Maeleigh

    hello from south carolina

    Reply
  72. Gracelyn

    This is so fascinating.

    Reply
  73. Elizabeth

    Hello from West Virginia!!

    Reply
  74. Marco-antonio

    Here from New York, ready for this Science Live!

    Reply
  75. Micah

    when is the conspiracy theory course being released?

    Reply
    • Sciencelive

      Mark your calendars! Conspiracy Theories with Dr. Todd Edmond premieres at Acellus World next month! We can’t wait for you to see it!

      Reply
    • Isabella

      love this!!

      Reply
  76. Melody

    Hope everyone had a good day!

    Reply
    • Esme`

      The history of how Ethernet was made was interesting. Thanks for sharing!

      Reply
  77. Johnny

    Thank you for the video. Watching from East Texas.

    Reply
  78. London

    Hello from the Bahamas.
    Learning about computers is a interesting topic I hope to learn more about in the future.

    Reply
  79. Jacob

    Hi from GA!

    Reply
  80. Jami

    All so cool. Thank you for this information. Our dad is an IT guru.

    Reply
  81. Aiden

    Watching Artemis was so cool! I watched it live and I saw them count down. It takes forever to get to the moon they were scheduled to land on the 6th. 🚀🚀🚀

    Reply
  82. Colton

    Hey from Florida colton

    Reply
  83. Vadym

    Thank you that video was very helpful to me and I really enjoyed it and I you make me laugh in every moment thank youu again

    Reply
    • Science

      You’re welcome Vadym!

      Reply
    • Vadym

      Thank you that video was very helpful to me and I really enjoyed it and I you make me laugh in every moment thank youu again

      Reply
  84. Olivia

    hello from virginia

    Reply
    • Sciencelive

      Hi Olivia

      Reply
  85. Suha

    I cant express how grateful I am and how much I look forward to our weekly Science Lives!

    Reply
    • Sciencelive

      Hi Suha! Thank you for joining us!

      Reply
  86. Rachel

    science live is cool

    Reply
  87. Ava

    This was so cool! Excited to watch more!

    Reply
  88. Honor

    this is great to know about.

    Reply
  89. Yaide

    Hello from Washington!

    Reply
    • Alys

      This is so cool!

      Reply
  90. Jacob

    Will this still count?

    Reply
    • Sciencelive

      Great question! Make sure you’re logged in. If you can see your Acellus ID above the comment section then you’re all set. Your parents can check in anytime to see your attendance: Checking Science Live Attendance

      Reply
  91. Joseph

    Hi from Delaware

    Reply
    • Mia

      no way same!

      Reply
  92. Esai

    wassup from Tx

    Reply
  93. Fernando

    Pajet Monet is goated

    Reply
  94. Jordan

    Hello from Texas

    Reply
  95. Nathan

    This is still one of my favorite things that I look forward too

    Reply
  96. Thor

    Hi, from North Dakota

    Reply
  97. Meikel

    Hello from NC

    Reply
  98. Kaycee

    I love science, I’m hoping to be a marine biologist!

    Reply
    • Sciencelive

      Hi Kaycee, a Marine Biologist is a very neat profession!

      Reply
    • Micah

      marine biologist sounds fun!!!

      Reply
  99. Bentley

    I’m loving science live and I love the way Ethernet runs.

    Reply
  100. Remi

    I thought that computers talking/transferring things to another piece of technology sounded ironic. Kind of thinking about it, if computers weren’t able to connect with another type of device (mainly Bluetooth from what I’m thinking) then how would most technology work, such as BT headphones or printers? The invention Ron Crane and the other computer techs thought of was a great idea!

    Reply
  101. Antigoni

    this is such a cool concept!

    Reply
  102. Meera

    Hi from maryland!!!

    Reply
  103. Andrew

    Hi from Georgia

    Reply
  104. Sophia

    I love Acellus

    Reply
  105. Naomi

    I love dino run lol!

    Reply
  106. Mackenzie

    The ethernet name originating from a science space term is so cool.

    Reply
  107. Alexis

    this is so cool

    Reply
  108. Caden

    Hi from Texas

    Reply
  109. Aubree

    im from texas

    Reply
    • Micah

      same!

      Reply
  110. Victoria

    I am very excited for this weeks video!

    Reply
  111. Marilyn

    Hi from Michigan!

    Reply
  112. Abraham

    The collision diagram helped me a lot with how well y’all explained it.

    Reply
  113. Micah

    did anyone watch the ‘Project Hail Mary’ movie?

    Reply
  114. Madeline

    I love learning about new things during Science Live!

    Reply
  115. Avery

    As always love the Science Live family!

    Reply
    • Sciencelive

      Glad to have you here with us!

      Reply
  116. Avery

    so cool

    Reply
  117. Ashley

    Watching from GA!

    Reply
  118. Rivkah

    so cool

    Reply
  119. Neo

    Why were punch out cards used at one point to code on computers?

    Reply
    • Sciencelive

      Punch cards were used because early computers had no screens or keyboards like we have today. Instead, programmers would punch little holes in cards to represent instructions. The computer would then read the pattern of holes and know exactly what to do. Think of it like a music box — the little bumps on the spinning cylinder tell it which notes to play. Punch cards did the same thing for computers.

      Reply
  120. Hannah

    Hello from Hawaii!!

    Reply
    • Jenerrah

      Hello from Mississippi!!

      Reply
  121. Logan

    Hi from Florida

    Reply
  122. Josiah

    here from texas

    Reply
  123. Naydalis

    Hello from Georgia!

    Reply
  124. Trinity

    So excited to learn!!

    Reply
    • Riley

      Love to learn

      Reply
  125. Emily

    Hi guys! Can’t wait to learn more!!!

    Reply
  126. Larry

    Quite interesting how the internet and ethernet works, I learned something new today!

    Reply
  127. Paul

    Thank you!

    Reply
  128. Brady

    Hello from Missouri!

    Reply
  129. Arianna

    I learned about how the company zerox engineers were trying to accomplish a project that was based on how computers connected , and with printers too.

    Reply
  130. Marleigh

    Hello from Georgia!

    Reply
  131. Queen

    watching from De!

    Reply
  132. Wahuda

    hello from Georgia

    Reply
  133. Teagan

    hello from KS

    Reply
  134. Angel

    Hello from Jacksonville!!

    Reply
  135. Douglas

    The diogram helped alot with explaining how it works

    Reply
  136. Ava

    hello from nc

    Reply
  137. Carter

    Dr. roger billings’ persistence and confidence is anazing and inspiring

    Reply
  138. Indiya

    love this!

    Reply
  139. Nathaly

    hello from Floridaaaa!!

    Reply
  140. Carlos

    The robot that functions with air is really cool!!

    Reply
  141. Evilan

    I find it intresting how packets carry your data across the world.

    Reply
  142. Sophia

    Incredibly interesting and nice to learn.

    Reply
  143. Jalie

    Why has it taken so long to get to the moon again? What’s been holding them back??

    Reply
  144. Gwendolynn

    I watched the launch, so cool

    Reply
  145. Conner

    i enjoy watching science lives every Wednesday

    Reply
    • Sciencelive

      Thank you for joining us!

      Reply
  146. Jonathan

    I really liked learning about ethernet

    Reply
  147. Love

    I love thissss

    Reply
  148. James

    Artemis II was so cool to watch!!

    Reply
  149. Chet

    I love science live!

    Reply
  150. Hannah

    Can’t wait to watch this!

    Reply
  151. Jaedyn

    I love R51 he’s super funny

    Reply
    • Sciencelive

      R-51 is the best!

      Reply
  152. Larry

    Hi this is Larry from Florida!

    Reply
  153. Destaney

    i loved this episode!

    Reply
  154. Edith

    Hi there guys nice to see sciencelive

    Reply
  155. Sophia

    SCIENCE LIVE!

    Reply
  156. Emily

    hi everyone!!! Watching from Florida!!!

    Reply
  157. Sabrina

    I think it would be really cool to be able to go to the moon.

    Reply
  158. Giselle

    Hello!!!♥️♥️♥️

    Reply
  159. Kaiya

    I love learning new things about computers!!

    Reply
  160. Catalina

    Super excited!

    Reply
  161. Jaden

    hi Jaden here

    Reply
  162. Carson

    Great live! I always enjoy them alot!

    Reply
  163. Johana

    Hi from New Jersey! I’m excited for this live

    Reply
  164. Alanah

    happy wednesday!!

    Reply
  165. Ethan

    Dr billings is very funny!!!

    Reply
  166. Meah

    It’s so amazing how much we as people don’t know until it’s brought to our attention, I love learning all this new information!

    Reply
  167. Arwen

    hello from trinidad

    Reply
  168. Ethan

    hello im am from florida!!!!!

    Reply
  169. Joseph

    Happy Wednesday from CT!

    Reply
  170. Kathryn

    my fav subject is social studies. I also love the lives! Keep doing what you are doing :]

    Reply
  171. Lyvionne

    hello from florida

    Reply
  172. Nolan

    how loves acellus i doo!!

    Reply
  173. Maxwell

    I loved learning about Ethernet I use a Ethernet cable for my computer and it is awesome

    Reply
  174. Tucker

    I loved today’s live !!!!

    Reply
  175. Isabella

    Super educational

    Reply

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