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Resistance and Multimeters

March 12, 2025  •  EPISODE 256

How do we measure electricity? In this episode of Science LIVE, Roger Billings shows how multimeters work to measure voltage, resistance, and ohms. Learn why these tools are important and how they’re used in everyday technology.

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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293 Comments

  1. Rivers Blackmon

    I learned a lot about electricity in this video. Also, way to go Charlie!

    Reply
  2. Arik Partridge

    R-51 is so funny!🤣 I love these videos!

    Reply
  3. Kadyn Dimmitt-Henslee

    Resistance and Multimeters – My mom said she learned more from this video than she did in school about electricity and currents. My mom is your biggest fan.

    Reply
  4. Kayla

    REDDDDDDD PLEASEEEE
    🥰

    Reply
  5. Victoria Jimenez

    Thank you! learned a lot

    Reply
  6. Isaac Becraft

    My Dad was just using a multimeter the other day when he was working on the house.

    Reply
  7. Ryder Blais

    It’s crazy the amount of electricity humans can produce so far yet, we’re at only a fraction of the power a lightning bolt makes with normal appliances.

    Reply
  8. Zandie Ortiz

    I did not know you could measure electricity, super cool!

    Reply
  9. Gunnar Bendorf

    Love it 😁

    Reply
  10. Jezlyn Chavez

    I learned a lot watching this video.

    Reply
  11. Elisiyana Louis

    The fact that electricity can be measured opens up endless possibilities of scientific research! The lengths we can reach through science are truly astonishing.

    Reply
  12. Logan Rentner

    These videos are the best!

    Reply
  13. Kamilah Bello

    I really enjoyed Tobias’ talk regarding Douglas Engelbert and the invention of the original mouse. Who knew how important the mouse would become for computer technology

    Reply
  14. Riley States

    R-51 is awesome! And I wish I had a multimeter

    Reply
  15. Llondon Bates

    “Resistor” HELP!! XDDD

    Reply
  16. Ana Maria Chaves

    Hi! I watched this live from North Carolina. I really enjoyed the live! I absolutely love how everything is about science and also loved learning more ab measuring electricity, etc. Thank you!!

    Reply
  17. Angie

    love learning something new everyday!

    Reply
  18. Teagan Oliver

    Love to have that book

    Reply
  19. Alexander Bryan

    Where do you think computers will be in the next 25 years?

    Reply
  20. Uzair Martinez

    I never knew you could measure electricity!

    Reply
  21. ashton

    I love r-51!!

    Reply
  22. timothy conklin

    Thank you!

    Reply
  23. Sara Francis

    Love new information and I really dislike the change of daylight saving time.

    Reply
  24. Kapri

    Nice! Learning about measuring electricity was pretty interesting.

    Reply
  25. brianna stilwell

    Measuring electricity is awesome!

    Reply
  26. Vivienne Robillard

    This is so neat!!

    Reply
  27. Becker James Eisele

    I liked r-51 a lot!

    Reply
  28. Cassidy Arnett

    R-51 is goofy

    Reply
  29. Alejandro Price

    Yes please put mutimeters on the store in a black and gray color

    Reply
  30. Sophie Nelson

    I didn’t even know measuring electricity was a thing thank you!

    Reply
  31. Alejandro Price

    Can we get a book like that??

    Reply
  32. Caiden Hiner

    so cool loved learning about Resistance and Multimeters

    Reply
  33. Tyler Whitsel

    Amazing live as usual

    Reply
  34. Nakova Crocker

    Thank you!!

    Reply
  35. Angelina

    This is so cool! Also that end bit was really meaningful

    Reply
  36. nathaniel thompson

    ha so funny. I love R-51

    Reply
  37. mackenzie

    I love how multimeters work

    Reply
  38. Jadrian Mayo

    I really liked learning how to measure electricity. I learned something new.

    Reply
  39. Brayden

    I love R-51

    Reply
  40. Jasmin Sosa

    I love how the original mouse actually looked a lot more like a mouse!

    Reply
  41. Callen

    Learning about how to measure electricity is really cool!

    Reply
  42. Aden Moore

    This was a great episode! I do think y’all should include a multimeter in the store, it seems like it’d be fun to play around with.

    Reply
  43. lillian

    I love the store! thank you for making it!

    Reply
  44. Mariah Tyus

    R-51 is so funny!

    Reply
  45. sage

    I love a pink mulitmeter in gold store

    Reply
  46. Titus Russom

    I had a multimeter I only used it for alternating current.
    Thank you for educating me on the many uses of the multimeter and resisters.

    Reply
  47. Aixa R

    Whats you guys favorite school subject? (Besides science)

    Reply
  48. sage

    I LOVE YOU DR ROGER BILLING

    Reply
  49. Kinsey Spradlin

    It was very cool to hear about 4 new planets circling Barnard’s star, how big are they?

    Reply
  50. Alexander Treat

    Thankful for Acellus and being able to learn about technology

    Reply
  51. mimi

    I would love to see pink mulitmeters in the gold store. I love Todd Edmond and would love to see him in more courses! I love science live!

    Reply
  52. Gia

    I love how the mouse was invented.

    Reply
  53. Barrett Pirtle

    Learning about Ohm’s Law and how electricity works is so interesting

    Reply
  54. Charlotte

    multimeters are fascinating!!!

    Reply
  55. Leah

    I really enjoyed learning how to measure electricity!

    Reply
  56. Emerale Stephens

    Did Elon Musk get the name Tesla after the guy named Tesla?

    Reply
  57. Renee tarantelli

    Love learning about electricity

    Reply
  58. Bethel Tobias Ivester

    Wow this episode was great

    Reply
  59. Sebastian

    Always love breakthrough moments in science

    Reply
  60. Noah Soucie

    THIS IS SO COOL

    Reply
  61. eva

    I’m so thankful for Acellus:)

    Reply
  62. Memphis Moore

    One of my favorite videos yet! thank you for sharing this.

    Reply
  63. Luciano

    I was diagnosed with ADHD.
    I really don’t like to sit still. This school helps me not have to sit down for very long. And I like school now. This will be my third week at Acellus.

    Reply
  64. Justin Estevez

    Dr. B is such a great salesman. He made that multimeter sound like the most fun thing of all; And yes I think you guys should put some In the Acellus Store maybe in blue.

    Reply
  65. Simone tarantelli

    I love the ai bit 😂

    Reply
  66. Persephone Davis

    With one questions I have I was wondering if there would be more in depth videos further explaining it . For example what factors would be needed to cause the resistance in the conductor.

    Reply
  67. Atticus W

    My dad uses multimeters in his work

    Reply
  68. Kennedy

    I did not understand how voltage was measured before, great Science Live

    Reply
  69. Kailey Holman

    This is good information to have because almost everything has batteries now.

    Reply
  70. Jackson Judiscak

    Tobias has always been an awesome segment but this one was super interesting.

    Reply
  71. Libby

    I couldn’t imagine having to use arrow keys to move around my cursor so glad we have computer mice

    Reply
  72. Zachery Johnson

    Wow this science live was very informative and i really enjoyed it!

    Reply
  73. Sophia

    Woah, I didn’t know we could measure electricity!

    Reply
  74. Robert Doyle

    Electricity Is really cool!

    Reply
  75. Tshepiso Makwela

    Cool video.

    Reply
  76. Armaan Shah

    where do you find muscle wire?

    Reply
  77. ella spence

    I love Science Live videos!

    Reply
  78. Madilynn J

    Thankful for the video lives

    Reply
  79. Myckael J

    Thank you Dr. Roger Billings for this program.

    Reply
  80. Merle J

    Love Science Live

    Reply
  81. Yurieva J

    Love Acellus

    Reply
  82. Ariana Mauldin

    Jingle bells was funny

    Reply
  83. Nicole Brennan

    Are multimeters able to detect electromagnetic fields from a light installation?

    Reply
  84. Bridger bellavia (*Vinny*)

    This is literally my favorite episode of science life. I’m hopefully going to be an electrician someday!!⚡️⚡️

    Reply
  85. Jackson M.

    I would like to have a red one in the store. This was a great video!

    Reply
  86. Deanna Thompson

    Yes, please put the multimeters in the Gold Store – purple or red

    Reply
  87. Taven Oluwa

    Acellus is the best!

    Reply
  88. Jayden Huse

    Thank you for this Episode of Science live, Second week on Acellus so far!

    Reply
  89. Sarah

    Watching from connecticut

    Reply
  90. Raylan Springstead

    We love acellus, My son har soared with his learning skills since joining.

    Reply
  91. Taymiyyah SuTay

    Wow! i really liked this one! so interesting!

    Reply
  92. Jayden Bowles

    I’ve always wondered how electricity works, and I do now.

    Reply
  93. Anthony Naqvi

    Nice watch Dr.B!

    Reply
  94. Wencai Mckillop

    That is amazing, i love watching science live, Roger billing and Pajet are remarkble when they are together

    Reply
  95. Preston Hagan

    this one was quite mind boggling!

    Reply
  96. Leif

    Pretty cool

    Reply
  97. kera m osborne

    Can you put a purple multimeter in the store.

    Reply
  98. Russell Ellis

    Do they know why some resistors are more tolerant than others?

    Reply
  99. Jacob Lott

    i wonder what the most amount of voltage ever pushed through any given conductor was.

    Reply
  100. Katie Miller

    what factors affect the resistance of a conductor?

    Reply
  101. Ruth Baldwin

    I really loved this one!

    Reply
  102. Cole Melerine

    I have to use a mouse with my computer. I cant imagine it any other way.

    Reply
  103. Jessica Romero

    This is so amazing!

    Reply
  104. Taylor Crosby

    I want my own star now

    Reply
  105. bentley sparks

    why should you make sure the circuit is powered off?

    Reply
  106. Jayden

    I love science live q(≧▽≦q)

    Reply
  107. David Leick

    i love acellus [:

    Reply
  108. Lincoln Stephens

    I wish I could be there and see how science live do it.

    Reply
  109. Liam

    I love watching science live!

    Reply
  110. Muhaimin Khattak

    this Wednesday was one of my favorites :}

    Reply
  111. Asher Bhatti

    I like the live videos.we can learned a lot .My son like these videos and how they explained with experiments when he heard those videos afterwards he likes science and he told me that mom now I want to become a scientist .He loves to doing experiments a different things .✌

    Reply
  112. Jason Sparks

    What is a multimeter?

    Reply
  113. Ashlyn Rider

    Wow! I had no clue that that’s house mice for computers came to be.

    Reply
  114. Gabe

    Love Acellus

    Reply
  115. Zaid Abdul

    It was pretty fun with DR. Roger Billings

    Reply
  116. Brianna Garcia

    Acellus has really help me, and other friends and family! This school helps many people, including me! The fact that this community is willing to help any and all kids like me! Keep up what you’re doing Acellus!! Thank you!! Congrats to Charile!!

    Reply
  117. Payton Alvey

    I love daylight savings time! Lighter longer

    Reply
  118. Jaecarrius johnson

    this is awesome!!!!!!

    Reply
  119. Keren Rosen

    Cool episode!

    Reply
  120. Zane Ford

    This was super cool

    Reply
  121. Abraham Cutler

    That’s cool!!!!!!!!!

    Reply
  122. Tyler Faircloth

    lol this is so funny im 10 and love the part where you say nope that is my watch lol I love science live

    Reply
  123. brianna stilwell

    Love loved this!

    Reply
  124. Adria Samu

    I think electricity is very interesting.

    Reply
  125. Dustin Thrasher

    I found it interesting that the muscle wire reforms back to its original position when heated up.

    Reply
  126. Lane Ellis

    I can’t imagine having to use the arrow keys to control my cursor. We are lucky to have people willing to innovate.

    Reply
  127. Dillen

    I wish I could go to science live

    Reply
  128. Dean hammond

    I love science live I hope a new one is come in 10 days(づ。◕‿‿◕。)づ

    Reply
  129. Deion S

    I love learning science!

    Reply
  130. Evelyn Yenchko

    This was so cool!

    Reply
  131. Alina Orozco

    This is so amazing!!

    Reply
  132. Jordan Campbell

    So each piece of memory wire can only remember one memory. So how many would it take to move like a person?

    Reply
  133. Aviles Ramirez

    I liked the live demo of meters and resistors! It was cool to learn more about what volts truly measure: How hard the electricity is pushing through it’s current.

    Reply
  134. Allegra Geter

    Very interesting! I liked learning about resistance.

    Reply
  135. Hannah Soye

    This was really cool!

    Reply
  136. Samil Nelson

    Love all the opportunities to learn from someone who knows their stuff !!

    Reply
  137. Dalton mccawley

    I heard you can pay to have a star named after you

    Reply
  138. Makayla Puig

    Measuring energy is a very cool

    Reply
  139. Kiana

    I had no idea that the mouse used to be wood.

    Reply
  140. Megan Hawkins

    I had no idea that is how the mouse was made! Amazing!

    Reply
  141. Nikolai Cornwell

    My Dad has one.

    Reply
  142. Tenley cordry

    I love this program and all the learning opportunities!

    Reply
  143. Anthony Pulido

    I love watching science live!

    Reply
  144. Aaron

    What’s your favorite subject in science

    Reply
  145. Arianna Graham

    I found it interesting how if heated up, the muscle wire goes back to he state it remembers.

    Reply
  146. Sugar Lauren Freeman

    Hello my name is Sugar Lauren Freeman,
    I would like meterader in purple please and can you teach me how to make a robot I love science

    Reply
  147. Dennis Flores

    Really enjoyed learning about resistance and everything else y’all talked about. Thank you!

    Reply
  148. Mackay Richardson

    I think that you should do Acellus golden colored multimeaders

    Reply
  149. Yochanan Harris

    YESSS!!!!! I WANT A MULTI METER IN THE GOLD STORE!!!

    Reply
  150. charlie

    you guys make learning entertaining thank you

    Reply
  151. Grace Robinson

    I love this science live video !

    Reply
  152. Jason Sparks

    What are transmitters?

    Reply
  153. Breelyn Hudson

    The evolution of the mouse was so cool .

    Reply
  154. Alina

    ❤‍🔥

    Reply
  155. Alina

    I wish I could go to science live so bad

    Reply
  156. Jayden Batista

    Thanks for this lesson on measuring electricity. Multimeters are such useful tools for checking voltage, resistance, and current in everyday devices.

    Reply
  157. Noah Henson

    Electricity is so cool

    Reply
  158. Skyeler Barfield

    I never thought about how life was like using a computer with no mouse!!

    Reply
  159. Anassa Nomura

    How do you build a robot?

    Reply
  160. Sloan Hale

    Acting and Filmmaking courses would be amazing!

    Reply
  161. Liam Howard

    yes, I think a multimeter would definitely be a good addition to the Acellus Store, and it should be in the Acellus blue.

    Reply
  162. Layten

    I have been doing Acellus for 3 years and I started in four grade now I’m in 7 it is the best school I have ever done I really love this school it has helped me so much I don’t have many friends on here but that is fine but, I love science live it is so cool.

    Reply
  163. Journi Powers

    I enjoy learning about electricity. My parents just bought us a new home and my dad talks about it a lot and how the lights work in the house.

    Reply
  164. Bako and Deko

    Wow I wish I could go to science live!!

    Reply
  165. Zoey White

    How does energy transfer to battery’s?

    Reply
  166. Gabe Houchin

    Love how he starts every episode keeps them fun and entertaining.

    Reply
  167. Auastynn Brash

    I think it’s so cool that this program has come so far but you’re still looking for suggestions thank you

    Reply
  168. Asher Levi Puska

    Hello Dr. Billings! I wanted to say that I believe your program, Acellus, is the best school program I have attended! I would also like to say that, and I’m sure everyone in these comment sections can agree, we all love you Science LIVE Videos. Your videos always are interesting, fun, and always entertaining!
    I also wanted to congratulate Charlie, he seems to be working hard, and his work has paid off!
    I also want to thank my AMAZING classmates for helping push me to do well and me to push them. I can’t name them all, but I can thank a few of them here.
    Thank you
    Nakova C.
    Luis Daneil P.
    Raya H. (Who always wins the weekly leaderboard, great job)
    and the other classmates I didn’t name but thank y’all. When you said to send feedback about ways to improve Acellus, I started to think. Of course I couldn’t say anything about the school work(which is amazing btw) but maybe about our profiles! I was thinking that maybe y’all could add background music. Which would be pretty cool. Or maybe class groups, that are monitored by Acellus Staff.
    Thank you all for your dedication to Acellus and us, the students.
    Thank you Dr. Rodger Billings!!

    Reply
  169. Preston Stewart

    I love that this teaches me about tools that measure electricity.

    Reply
  170. Azylynn p

    I love this keep it up.

    Reply
  171. Han Nguyen

    I REALLY love watching SCIENCE LIVE !!!

    Reply
  172. Martyn Swanepoel

    Multi meters is very fascinating. I would like a Science LIVE video
    explaining how to calculate the resistance using the colours painted
    on the resistor and what each line represent. It is quite interesting.

    Now I understand why multi meters is called Multi Meters!
    They have multi functionalities

    Reply
  173. Jaxon Rea

    How many mouses did Steve job create until he made the perfect one?

    Reply
  174. Noah Lair

    My favorite part was when Mr. Billings showed how a resister worked.

    Reply
  175. Logan

    I did some electrical work with resistors, but I have learned the most from this video

    Reply
  176. Nathan Davis

    Love these videos they’re so fun!

    Reply
  177. vivienne

    i LOVE how these videos are formatted to be entertaining yet informative at the same time. learning about electricity is so cool!!

    Reply
  178. Simone tarantelli

    That so cool!

    Reply
  179. Caleb Perzhu

    Thank you for explanation about Voltage

    Reply
  180. Quintero Cartwright

    I did not now that scientists have new discovery that there are four tiny planets circling the Bin Heart star.
    Also, I love how Acellus Academy caters to various learners where students can work at their own paste.

    Reply
  181. Mason M

    I love watching these videos.

    Reply
  182. Miecqe Cronjé

    I love watching science live! Always very interesting

    Reply
  183. Ambellina Colpitts

    It was interesting to learn about the creation of the mouse and its uses. Thank you for another great science live!

    Reply
  184. Abigail McGrath

    Daylight savings is cool but weird

    Reply
  185. Edan Langston

    My daddy is an electrician and he has a lot of electric guys that work with him.

    Reply
  186. Yaretzi garcia

    I love science

    Reply
  187. the roberts kids

    we love the lives

    Reply
  188. Sean Loftus

    Thank you for making science live!

    Reply
  189. McKenna Kuiper

    Day light savings has been such a fun topic to learn about! Really enjoyed this video

    Reply
  190. Makayla Sampson

    These are so cool to watch

    Reply
  191. Yanella Alequin

    Daylight savings…I don’t like it when we lose one hour

    Reply
  192. Trevor Fishack

    its amazing how electricity works

    Reply
  193. Benson Ryker

    I LOVE THIS AND MYSELF AND DAD ARE GOING TO DO SOME SCIENCE IN THE GARAGE.

    Reply
  194. Abigail Vela

    R51 is so funny!

    Reply
  195. Corwyn Zirpoli

    Rly fun to watch

    Reply
  196. Braylon Morris

    I love Acellus!

    Reply
  197. suraiea

    awesome lesson! <3

    Reply
  198. Kendallyn Rose

    Knowing Ohm’s Law while watching this science live really helps.

    Reply
  199. Caiden Hiner

    love this so cool

    Reply
  200. Skyler roston

    What is the highest voltage for a home appliance?

    Reply
  201. Michael Myrick

    I found it interesting about the measurement volts of electricity or resistance in the video.

    Reply
  202. Cody Krause

    This was great.

    Reply
  203. bailey fletcher

    Love watching these!

    Reply
  204. Spencer McKeon

    I loved this, science live is my favorite.

    Reply
  205. Chase

    How long did it take to make acellus?

    Reply
  206. ryanna edenfield

    daylight savings time is so cool but weird

    Reply
  207. Grace Church

    My favorite teacher is Mark Rogers! He helped me so much in math with fractions!

    Reply
  208. BayLeigh Howland

    This episode provided a clear and insightful explanation of how multimeters function and their crucial role in electrical measurements. The practical demonstrations made complex concepts accessible.

    Reply
  209. Elias Barretto

    Muscle wire is so cool! I would love to become a scientist or engineer and create something innovative.

    Reply
  210. DPreston

    We are so excited for Charlie! What an achievement!

    Is the accuator expensive? Will everyone use the muscle wire now?
    .
    Dr. Tobias is so funny! It’s cool to see how far we’ve come with every phase of the computer- the story of the mouse is wild. Just how they demonstrated it for the engineers was ahead of it’s time really.

    The multimeter cables is a little like jumping a car. I’d like to have a blue or green multimeter. That would be cool!

    Reply
  211. Tobias Dingus

    cool

    Reply
  212. Leilah Peterson

    Congratulations Charlie!

    Reply
  213. Jeremiah Wade

    It was so awesome to learn how the mouse was invented and reinvented!

    Reply
  214. Prince McGriff

    Always assume the power is on guys 🙂

    Reply
  215. Kylieeeeeeee

    I lovvvveeee Science Live, I watch it in the car!

    Reply
  216. leeland whitehouse

    this is so cool the way eletricity works

    Reply
  217. river whitehouse

    really enjoyed this

    Reply
  218. Isabella baldino

    we don’t have daylight saving in hawaii

    Reply
  219. Tristan Gore

    Happy to be on Science Live!

    Reply
  220. Deanna

    The story at the end was so sweet! This was so interesting though!

    Reply
  221. Aaron madura

    We just used a multimeter last week to fix our refridgerator!

    Reply
  222. gavin Munro

    Daylight savings messes me up

    Reply
  223. Varvara Erofeeva

    I enjoyed it, thank YOU so much!

    Reply
  224. Damien Daniels

    I love robots too!

    Reply
  225. Jakiha Collins

    Happy to be on Science Live!

    Reply
  226. Zander Stephens

    Daylight Savings Time messes me up.

    Reply
  227. Shane Bowles

    I enjoy these videos. They get me excited about science.

    Reply
  228. Katya

    This was a fun watch! The Christopher story was as sweet as chocolate.

    Reply
  229. Violet Sophia Cumming

    Its so great hearing about the evolution of technology.
    and its kind of crazy to think that computers took up whole rooms at one point.. And now how small they’ve become.

    Reply
  230. kaitlyn hatcher

    i loved this episode! Learning the way the mouse is made was incredibly interesting.

    Reply
  231. Tate Pierce

    Hooray for Charlie!

    If you send a million volts through a smaller resister, why doesn’t it blow out the resister?

    Reply
  232. Andrea Cervantes

    This was so fun to watch and learn!

    Reply
  233. Max McCall

    How hot does the wire have to be for it to stop reforming

    Reply
  234. Jahmir baxter

    Great video Dr.john gave a great presentation on explaining how the robotic arm works

    Reply
  235. Logan Gilmore

    Its always interesting how resistance works

    Reply
  236. Arianna Castillo

    so happy in in this program!

    Reply
  237. Croix Long

    I loved how dr. John explained how the extremely high tech robot arm worked.

    Reply
  238. Sophia Benson

    Wow! Muscle Wire is awesome!🤩

    Reply
  239. Gage Hasselmann

    Please hurry on the filming course I want to do it before I am done with school

    Reply
  240. Aidan

    I never thought about how complex just a mouse is.

    Reply
  241. Gracelyn Weitz

    wow never knew resistance could be so cool

    Reply
  242. aaisha

    I love your videos DR.Roger Billings

    Reply
  243. Bryce Hoffman

    These videos are so encouraging.

    Reply
  244. 𝑚𝑎𝑦𝑧𝑖 ౨ৎ

    electricity is so cool!! ❤︎︎

    Reply
  245. Blythe

    So, you said it can take on jobs people don’t enjoy or can’t do…. What about dirty jobs?

    Reply
  246. Teagan Parkinson

    I love that this teaches me about the tools that measure electricity.

    Reply
  247. Audrina Aaron

    so many things go into having electricity, it’s so fun to learn about it!

    Reply
  248. Libby

    Haha R-51 is so funny!

    Reply
  249. Bre'Shaun J Bailey-Amos

    Fascinating information about the mouse! Thanks Acellus!

    Reply
  250. Tommie Hendrix

    I had no idea that NASA was involved in the development of the mouse.

    Reply
  251. Asher Levi Puska

    Hello Dr. Billings! I wanted to say that I believe your program, Acellus, is the best school program I have attended! I would also like to say that, and I’m sure everyone in these comment sections can agree, we all love you Science LIVE Videos. Your videos always are interesting, fun, and always entertaining!
    I also wanted to congratulate Charlie, he seems to be working hard, and his work has paid off!
    I also want to thank my AMAZING classmates for helping push me to do well and me to push them. I can’t name them all, but I can thank a few of them here.
    Thank you
    Nakova C.
    Luis Daneil P.
    Raya H. (Who always wins the weekly leaderboard, great job)
    and the other classmates I didn’t name but thank y’all. When you said to send feedback about ways to improve Acellus, I started to think. Of course I couldn’t say anything about the school work(which is amazing btw) but maybe about our profiles! I was thinking that maybe y’all could add background music. Which would be pretty cool. Or maybe class groups, that are monitored by Acellus Staff.
    Other than that, I am very much enjoying math at the moment with Dr. Aaron Brown my favorite teacher of whom I would like to meet one day.
    Thank you all for your dedication to Acellus and us, the students.
    Thank you Dr. Rodger Billings!!

    Reply
  252. Brayden Bauer

    I love learning about electricity it has always been so Interesting to me

    Reply
  253. Joey W

    Learning about the meter was interesting because you use that at home for things. It was especially interesting about keeping a hand behind your back to prevent electricity going through your heart.

    Reply
  254. Pacin Asawathaworn

    I agree that using mouse helps the interaction to computer is easier, cannot imagine how people in older times work with computer.

    Reply
  255. Jahan Kendrick

    My dad showed me the multimeter. It is very cool.

    Reply
  256. Ambroise Dulauroy

    It’s very interesting because we use electricity in everything today: our computer, our phone, our TV, everything we have in the house.

    Reply
  257. Trystin Thompson

    I love learning about electricity and how it all works

    Reply
  258. Coralynn Puska

    I belive Nasa has been around for about maybe 64- 65 years. Also I don’t think R 51 needs a resistor for Pajet Monet!

    Reply
  259. Abigail Welenc

    I have always wondered what those transformer boxes were, theres a few randomly around the neighborhood.

    Reply
  260. Alexa Trosky

    Yes, I would love to be able to purchase a meter on the Gold Store. I really enjoyed watching all the things you could do with it and find out. I am excited to explore and find out about volts and current in batteries and light bulbs and many different items. Thank you!

    Reply
  261. Jocelyn Perez

    I enjoyed this video about resistance and multimeters!

    Reply
  262. Ava Pinco

    So many things play into resistance and how it works.

    Reply
  263. Dean Dunaway

    This was a super interesting episode cause I love electricity, Thankyou DR,B

    Reply
  264. minerva

    I love learning about electricity!

    Reply
  265. Thailand

    Dr. Billings explained how resistance controls the flow of electricity in a circuit. It is measured in ohms (Ω) using a multimeter, a handy tool that checks voltage, current, and resistance in electrical circuits. He demonstrated how to use a multimeter to measure volts and test different components like resistors, which help regulate electrical flow.

    He also talked about Nikola Tesla, the pioneer of alternating current (AC), which powers our homes and cities today. Unlike direct current (DC), AC allows electricity to travel long distances efficiently. Understanding these concepts helps us appreciate how electricity powers our world.

    Reply
  266. Athena Byrne

    What is the memory wire made of?

    Reply
  267. Abigail Mitzel

    Acellus makes learning fun and interesting

    Reply
  268. Maya Wossne

    How long has NASA been around?

    Reply
  269. Jessica Brück

    I have used Multimeters with my dad a few times. Now I know exactly what it is and all the settings. I also found the history of the mouse quite interesting. Thank you

    Reply
  270. Brielle W.

    I had no idea the mouse was made that way, cool!

    Reply
  271. carlee mashek

    Electricity is my favorite science study!

    Reply
  272. Melody Quinones

    PINK!!!!!!!

    Reply
  273. Ambellina Colpitts

    The memory wire that Dr.John was talking about was so cool. This science live has made me more interested in computer science. I’m excited to check it out.

    Reply
  274. Emillia Giles

    We are watching together with my grandmother.

    Reply
  275. Zoey Garcia

    I never realized you can measure electricity.

    Reply
  276. Lillian Barkan

    Thank you for teaching me all of the science that you know to make me smarter.

    Reply
  277. Joshua Webb

    I’d like green multi meters!
    It’s amazing how the# of wires wrapping around can change how much energy goes through.

    Reply
  278. Tristan Davis

    Wow interesting that’s how electricity it measured!

    Reply
  279. Karlee Urbaschek

    My grandfather was an electrician his whole life. I really liked this video and if you can get the multimeter in would like to get one. Parents said would get. Pink or blue would be my favorite color choices! My great grandfather worked for the city and worked on electrician lines, he had got electricuted real bad many years ago when working on a power line, my mom and grandma told me and luckily lived but was burned severely. Thank you for the great topic!

    Reply
  280. Savannah Brennan

    I love the comparison between muscle wire and a plant growing! I also love the different phases of it, but it does sounds like you have to be aware of the right amount of heat to use in order to get the contract action. Thanks for this week’s live!

    Reply
  281. Carson Taylor

    My great grandfather has a star named after him

    Reply
  282. Adalyn Zink

    I loved learning about the multimeters and memory wire. Is there some where I can get memory wire to experiment with?

    Reply
  283. Rayana Wulf-Towne

    Is there a limit to how many times you can form and reform muscle wire before it breaks or stops reforming to it’s original position?

    Reply
  284. Declan Hart

    I loved hearing the history of the mouse.

    Reply
  285. Eldrin Fletcher

    Why did the mouse had 3 buttons?

    Reply
  286. Nei Rivera

    Why is day light savings a thing?

    Reply
  287. Asher Rice

    Great video on multimeters!

    Reply
  288. Eva Sirotek

    I didn’t know that multimeters had many different functions!

    Reply
  289. Maddie

    Wow that’s pretty cool I didn’t know there was a way to “measure” electricity

    Reply
  290. Jackson B.

    It is awesome how useful multimeters are in finding problems in circuits.

    Reply
  291. Ellie

    Great job Charlie!

    Reply
  292. Genevieve Melody

    I loved this! Thanks so much!

    Reply
  293. Lucy Rose

    They do not do daylight savings where i live in Puerto Rico!

    Reply

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