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. Brooklyn

    That’s such a cool way we come up with conclusions

    Reply
  2. Yuezes

    hi from ny!

    Reply
  3. Dawson

    hey everyone coming from Illinois I enjoy the science videos

    Reply
  4. Zoey

    Hiiiii from south Carolina

    Reply
  5. Sterling

    Cool info about Ethernet.

    Reply
  6. Keira

    i enjoyed this science live a lot, thank youu!

    Reply
  7. Joscelyn

    wow how cool!!

    Reply
  8. Mason

    Ethernet is so helpful!

    Reply
  9. Jayden

    Coming from Maine!

    Reply
  10. Emily

    Hi, from Mississippi!

    Reply
  11. Devin

    Hello from texas.

    Reply
  12. Isabella

    love the live from sc

    Reply
  13. Gideon

    hi from Texas

    Reply
  14. Syeda

    hello from maryland you guys are cool

    Reply
  15. Caraya

    Why do older devices called “hubs” cause more collisions than the “switches” we use today?

    Reply
  16. Lucas

    hi from indiana

    Reply
    • Sciencelive

      Hello Lucas! Thank you for joining us tonight! We are super excited to have you with us! 🔬

      Reply
  17. Caleb

    hi from Indiana

    Reply
  18. Jayden

    I think that ethernet is super cool and i dint even know what it was before this

    Reply
  19. Hailey

    Really cool

    Reply
  20. Claire

    Love this school

    Reply
    • Sciencelive

      Hello Claire! Thank you for attending tonight. We love this school too! 🔬

      Reply
  21. Crystal

    Hii! form NJ

    Reply
  22. Kailey

    I love science live!

    Reply
  23. Lilliana

    i loved how r-51 excaped the lab and hi from texas and how the ethernet was made

    Reply
    • Sciencelive

      Yes! Let us know if you spot him!

      Reply
  24. Ezra

    I love how there were initial problems with the ethernet yet they were still able to fix the issues it really inspired and fascinated me how they worked through these problems.

    Reply
  25. Landen

    that was a great video

    Reply
  26. Paisley

    wow, this was so cool!

    Reply
  27. Breion

    hello from va

    Reply
  28. Saadia

    Hi from Texas

    Reply
  29. Brennan

    Brennan from RI!

    Reply
  30. Jotham

    thanks for the live.

    Reply
  31. Alaina

    My dad said when he got his first computer it was slow, not like todays computers!

    Reply
  32. Devon

    Love this live

    Reply
  33. Alyssa

    I love science Live! sending Love from mississippi

    Reply
  34. Kade

    Another great Science Live!

    Reply
  35. Zailey

    heyo from minnesota!!!!!!!

    Reply
  36. Zoey

    Science Live is amazing! I’m learning new things every time!

    Reply
  37. Lucas

    Coming from Florida! Love this live!

    Reply
  38. Mckenzie

    Love science live

    Reply
  39. Devon

    Love from Texas

    Reply
  40. Jillian

    Heyyy from Texas!!

    Reply
  41. Addalyn

    hi from SC

    Reply
  42. Lydia

    hi from nd!

    Reply
  43. Camila

    Hello from Georgia, this live is so interesting.

    Reply
  44. Karissa

    hi from nebraska

    Reply
  45. Javon

    Learning about what Ron Crane did for our human civilization and the technology advancements he was able to help create with other brilliant minds was so cool and I’m so inspired by how he was able to do this. During such a difficult time to compete with amazing minds he was able to work in a team to create communication through computers and printers with so many different obstacles.

    Reply
  46. Zandell

    Cant wait till next week!

    Reply
  47. Evan

    I love the science lives

    Reply
  48. Elian

    Hi from Illinois cant wait for this live

    Reply
  49. Jaycee

    What an interesting episode!! Glad i’m able to watch these!

    Reply
  50. Silas

    Hi from Tennessee

    Reply
  51. Eli

    love science live

    Reply
  52. Callie

    I love watching science live

    Reply
  53. Keanu

    Great live! Keep up the good work!

    Reply
  54. Asher

    Ethernet is so useful, glad we fixed it.

    Reply
  55. Ghost

    Hello from Mississippi

    Reply
  56. Eli

    What is the fastest ethernet cable?

    Reply
  57. Brooke

    How did they find the difference between frequencies?

    Reply
  58. Vito

    I like this episode a lot.

    Reply
  59. Jack

    Tech has come so far I can’t even imagine the future

    Reply
  60. Ella

    hi from RI

    Reply
  61. Aiden

    This is a great topic!

    Reply
  62. Chandler

    howdy from Alabama!

    Reply
  63. Tenley

    Hello from Idaho

    Reply
  64. Haddi

    North Carolina here!!

    Reply
  65. Liam

    Hi Dr.B!

    Reply
  66. Hunter

    Hi from AMERICA

    Reply
  67. Tobias

    That is so cool! !!!

    Reply
  68. Stacie

    This live is amazing

    Reply
  69. Khang

    The letter examples were insanely helpful for understanding.

    Reply
  70. Joshua

    Awesome!

    Reply
  71. Oliver

    Thank you so much Dr Billings!

    Reply
  72. Lachlan

    Another incredible Science Live! Keep up the good work!!!

    Reply
  73. Zaydee

    Hello from WestTexas!

    Reply
  74. Jeremiah

    hi from texas

    Reply
  75. Mohamed

    I usually have a problem with the live due to the time difference between the USA and Egypt. Can I satisfy the requirement by viewing the recorded episode later in the week?

    Reply
    • Sciencelive

      Hello Mohamed- thank you for your question! You’re welcome to tune into Science Live at any point during the week to meet the scholarship requirements. Just make sure to tune in every week, Wednesday to Wednesday. We’re so happy to have you! 🔬

      Reply
  76. Jayden

    interesting as always

    Reply
  77. Evie

    Hello to everyone at Science Live. Thank you Science Live for introducing us to the amazing things of science. Every episode we learn something new and it is very exciting. Thank you!

    Reply
  78. Joseph

    From Florida

    Reply
  79. Ashlyn

    When was the internet first created and who thought of the idea of the internet? Also, when was the first connection made with the internet, and how far did it travel?

    Reply
  80. Brayden

    what would happen if Ethernet didnt exist

    Reply
  81. Aliia

    Thank you for the live

    Reply
  82. Malaya

    Hi from Texas

    Reply
  83. Amelie

    The Ethernet sounds really cool. Also, hopefully R51 doesn’t get into too much trouble!

    Reply
    • Sciencelive

      Thanks for tuning in Amelie! We’re so glad he is learning to be socional 😌

      Reply
  84. Natalie

    Hi I really enjoyed this episode and I cant wait for next weeks!

    Reply
  85. Logan

    sending a warm welcome from Maine!!!

    Reply
  86. Ethan

    What do you think Ethernet could look like in the distant future?

    Reply
  87. Nicholas

    Coming from Texas, love this live !

    Reply
  88. Anthony

    hey from maryland

    Reply
  89. Eva

    hello from texas

    Reply
  90. Caiden

    I didn’t realize early Ethernet had so many accidents before they were fixed.Amazing!

    Reply
  91. Hannah

    Wow! This is so interesting!

    Reply
    • Sciencelive

      Hello Hannah! This week sure is a good one!

      Reply
      • Lauren

        I love this live

        Reply
    • Kaleb

      Hello from Georgia!

      Reply
  92. Damian

    Im glad we are able to have ethernet today!

    Reply
  93. Liliana

    heyyy thanks for the beautiful lesson

    Reply
    • Tenley

      Hello from Idaho

      Reply
  94. Francisco

    Amazing as always

    Reply
  95. Anna

    thank you guys for doing science live!

    Reply
  96. Landen

    Hi from TN

    Reply
  97. Roger

    I wonder what R-51 is going to do

    Reply
  98. Andres

    It’s cool how ethernet was invented.

    Reply
  99. Erielle

    This is so interesting!

    Reply
  100. Anthony

    Why was it named ethernet

    Reply
  101. Valentina

    I really enjoyed todays video. From Az

    Reply
  102. Blake

    I thought that learning about how the networks are working was pretty cool.

    Reply
  103. John

    Did dr Roger billings co invent the internet

    Reply
  104. Gracie

    Hi from North Carolina

    Reply
    • Abrianna

      Ethernet seems really cool I didn’t know that it was so important lol that’s so cool.

      Reply
  105. Hayden

    Wow very interesting!

    Reply
  106. Donovan

    I thought it was really cool how network works.

    Reply
  107. Blaine

    I never thought about how ethernet is so important.

    Reply
  108. Noah

    Kentucky here, interested with science!

    Reply
  109. Jonah

    That’s a really cool name “The Vampire Tap”

    Reply
  110. David

    This is so cool!

    Reply
  111. Maxwell

    Ethernet cables are so cool and was amazing to learn how they work

    Reply
  112. Zidane

    Ethernet cables are very cool.

    Reply
  113. Armonty

    Trying to fix all the collisions with the computers on the same wire to make it where all of the computers on different wires. Also that sounds cool anyway can you put a circut kit on the store and i watched the artiems 2 launch on tv. Good night science live

    Reply
  114. Kayla

    Hello, from Tennessee!

    Reply
  115. Talia

    hello, from Idaho.
    I love acellus.

    Reply
  116. April

    Hi from Texas!

    Reply
  117. Alaina

    Ethernet its really interesting!!!!

    Reply
  118. Desean

    love everything about science!

    Reply
  119. Kaden

    Greetings from Tennessee!

    Reply
  120. Amelia

    What does each twisted cable do in an ethernet cable?

    Reply
  121. Josiah

    Is Ethernet and internet similar

    Reply
  122. Bilal

    Hello from New Jersey!

    Reply
  123. Debbie

    Fun live!

    Reply
  124. Donovan

    The lives are amazing thank you!

    Reply
  125. Ada

    thanks for science live this week!

    Reply
  126. Jaxtyn

    Hello from Illinois!

    Reply
  127. Yamili

    It’s cool learning new things from Science Live.

    Reply
    • Sciencelive

      Hello Yamili! We love all the new things we learn from Science Live! 🧪🔬

      Reply
  128. Jayden

    I love the way you guys formed this video. Introducing ethernets and how it was created, explaining how it works, and finally solving the problem with collisions.

    Reply
  129. Caden

    hi from nc

    Reply
  130. Timothy

    I’m from Rhode Island!

    Reply
  131. Andrew

    Hi from kc

    Reply
  132. Kaylee

    Great Wednesday video like always!

    Reply
  133. Leslie

    Thank yall for making these videos.

    Reply
  134. Landon

    I love science live!!!

    Reply
  135. Paetyn

    I enjoyed this science live

    Reply
  136. Jameson

    i love science live!

    Reply
  137. Scarlett

    I loved this one the most

    Reply
  138. Kelsie

    I use ethernet! I have an ethernet cable plugged into my PC, another great science live!!

    Reply
  139. Brantley

    i really love this

    Reply
  140. Gia

    I’ve always wondered how ethernet cables worked!

    Reply
  141. Elizabeth

    Hi from Tennessee I’m lizzy!!!

    Reply
    • Sciencelive

      Hello Lizzy! Thank you so much for joining us tonight! 😄

      Reply
  142. Forest

    This science live was awesome and so informative!

    Reply
  143. Landon

    hi!!!!! I’m loving this lesson!!

    Reply
  144. Angelo

    Hi from Michigan.

    Reply
  145. Shannah

    The Ethernet is very interesting! I’ve heard of Ethernet cables, but I’ve never learned what they are or what they are do before now.

    Reply
  146. Rosa

    nice show

    Reply
  147. Chayce

    Ethernet cable has changed so much. Great Science Live.

    Reply
  148. Evan

    Hi from Illinois

    Reply
  149. Izabella

    How do computers generate random signals?

    Reply
  150. Leah

    hi from florida

    Reply
  151. Rowan

    I like learning the history. Caleb and Eric make it easier to understand.

    Reply
    • Sciencelive

      Hello Rowan! We love the Protégés and Inventioneers!

      Reply
  152. Pierce

    Hi from new Mexico 🙂

    Reply
  153. Aaralynn

    Hi! From Las Vegas!

    Reply
  154. Jakub

    FIFO is my new favorite word

    Reply
  155. Cora

    Hello hello hello from Minnesota🧸💐

    Reply
  156. Sabastion

    How many inventions have you made Dr. Roger

    Reply
  157. Jeremiah

    This is the best part

    Reply
  158. Rutledge

    how many computers can connect

    Reply
  159. Adalynn

    You don’t think about how complicated this all is until you see a program like this explaining it all,

    Reply
  160. Brinley

    that is so cool

    Reply
  161. Cade

    Today’s technology spotlight was fascinating.

    Reply
  162. Leyton

    Hello from maryland

    Reply
  163. Ava

    Thankyou for explaining everything so clearly these videos are always so interesting to watch!

    Reply
  164. Sofia

    Does one computer’s usage of the Ethernet affect the local hub in a way that could make it slowed for the rest of the computers attached to the same hub?

    Reply
  165. Annabelle

    hi from texas

    Reply
  166. Connor

    Hello from California!

    Reply
  167. Zaynab

    Hello, from Illinois

    Reply
  168. Anthony

    hi from tn

    Reply
  169. Evan

    hi from ohio

    Reply
  170. Gracie

    hi from Florida

    Reply
  171. Dayton

    Hello from Indiana

    Reply
  172. Lynnzee

    hi from tennessee!

    Reply
  173. Blair

    Wow, Ethernet is really cool.

    Reply
  174. Valentina

    hello from new york

    Reply
  175. Braden

    Technology changes so quickly. Find an error and onto something new and better.

    Reply

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