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Fun with Magnetism

February 19, 2025  •  EPISODE 253

Magnets are more than just fridge decorations—they’re key to some of the biggest innovations in science! This week on Science LIVE, Dr. Roger Billings explores how magnets and electromagnets work. He shares how electromagnets played a crucial role in his invention of the hydrogen engine. Plus, big news for Acellus students—the Acellus Gold Store is officially open! Find out how you can use your Gold Coins to unlock exciting rewards.

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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329 Comments

  1. Campbell Dean

    What are two types of magnetic poles?

    Reply
  2. N.B

    Magnetism is so epic!

    Reply
  3. Aden Neumyer

    Magnets are amazing. This gave me some cool ideas.

    Reply
  4. Edward Frisk

    Second time watching. ❤️

    Reply
  5. milea jewell

    I love magnetization!

    Reply
  6. Alana Boyce

    This is so cool!! I learned a ton about magnets from the last video, but this one taught me even more!

    Reply
  7. Hannah Hope

    It’s so fascinating all the things magnets can do besides be great fridge decoration.

    Reply
  8. Arik Partridge

    Magnets are so cool!

    Reply
  9. Harrison Irwin

    Interesting episode.

    Reply
  10. Uzair Martinez

    Wow i love magnetization

    Reply
  11. Isabella Wiley

    I think the tentacle based robot arm is super interesting! It seems a lot more coordinated than the more mainstream ones!

    Reply
  12. Niki Kaminskas

    This video just made me realise how powerful the magnets are on those Maglev trains ! magnetically powered trains)

    Reply
  13. Memory

    I love this

    Reply
  14. Andrew Gideon hicks

    Magnetism is really useful.

    Reply
  15. Benjamin D.

    I liked seeing the robot octopus arm. 🙂

    Reply
  16. Lloyd Wilson

    I have learned about magnets before but never about how it is connected to hydrogine engine

    Reply
  17. MADDOXX

    I LOVE THIS VIDIO

    Reply
  18. Isabella

    Loved the video! Thanks for sharing about magnetism

    Reply
  19. Jacob Randleas

    I liked Dr. Johns part

    Reply
  20. Sarah Siefers

    Magnets are really interesting! I find them *ahem* attractive. 😉

    Reply
  21. Carter Larson

    Magnets are important, we use them in so many places and for so many things.

    Reply
  22. Neasha Edwards

    The dancing robot was soooooo cute. Octopuses are awesome creatures. Amazing story about the SR71. Area 51 was funny today.

    Reply
  23. Nguyễn Tùng Lâm

    I like how N and S represent the North and South like the Earth, which is very fascinating

    Reply
  24. Ruqaia Majidsemin

    The octopus part was very interesting and fun to watch. 😉

    Reply
  25. Emma Soucie

    I thought the dancing robot was so cute

    Reply
  26. Mira Adams-Smith

    Engines are cool! Thank you for showing us how they work.

    Reply
  27. Sullivan Giles

    Enjoyed this episode!

    Reply
  28. Renee tarantelli

    Magnets are amazing!

    Reply
  29. Rumaysa

    I love these

    Reply
  30. Alivia

    That’s so cool how the electromagnets helped Dr. Billings in his hydrogen car.

    Reply
  31. Atticus W

    The doorbell in my house is an electromagnet.

    Reply
  32. Gia

    I love how magnets can pick up cars.

    Reply
  33. jacoby villanueva

    can magnets be used at home too?

    Reply
  34. Mira Adams-Smith

    I am curious to know how the octopus robotic arms could be modified to work fitted to human hands.

    Reply
  35. Zachery Johnson

    Magnetism is such a cool force!

    Reply
  36. Shannon Rice

    Science live has taught me so much about magnets and many other things from past videos I really enjoy watching these videos. Thank you!

    Reply
  37. Ryker Dugger

    Magnets are so cool and fun to play with!

    Reply
  38. Katie Miller

    sknakey 51 is definitely my favorite part of this video!

    Reply
  39. Morgan Briggs

    Thanks for all the cool info on magnets!

    Reply
  40. Winter

    I love dancing

    Reply
  41. Kylie

    What is the strongest man-made magnet?

    Reply
  42. Emma Werner

    How amazing is this!

    Reply
  43. Brianna Garcia

    Its amazing to me how many different things we can use magnets for!

    Reply
  44. Aisha Umer

    I used to play with magnets all the time as a kid!

    Reply
  45. Tyler Rideout

    Dr Roger Billing, magnetism is so fun to learn about

    Reply
  46. Skylar Cooper

    this episode was funny

    Reply
  47. Meghan Paquin

    So funny and fun.

    Reply
  48. Michael Myrick

    The first the video explains or gives information about connecting electricity from magnets. The dancing robot was exciting and interesting.

    Reply
  49. Zuri Glodd

    what would the world be like w/out magnastism?

    Reply
  50. christopher castillo

    the studying with Acellus Gold we saw that there was a dance contest with robot acd2. for the technology spotlight we saw robot ocktopus arms and how useful they can be and that gave me a idea to make a robot arm and no fingers but ock arms. at the breackthough moments in science we saw the guy talk about a super diffrent but better plane then any at the time. in rodgers science we saw the factory for toys and about magnitism.

    Reply
  51. Finn Hoskins

    What is the strongest magnet in the world?

    Reply
  52. Julia Ross

    This episode definitley aspired me to learn more about magnets.

    Reply
  53. Zachery Johnson

    Who first found the major uses for magnetism?

    Reply
  54. Tieraney Allen-Jackson

    Loved the octopus arm

    Reply
  55. David Santos

    WAKE UP MR WEST

    Reply
  56. Simone tarantelli

    The octopus arm was so cool!

    Reply
  57. Ambellina Colpitts

    I loved this science live!!! I can’t wait to earn gold. I especially enjoyed snakey 51!

    Reply
  58. Abigail McGrath

    Magnetism is so cool

    Reply
  59. Elias Barretto

    Without Magnetism, the world would be destroyed by the suns solar rays

    Reply
  60. KANLAWEE WIRIYAHYUTTAMAR

    what’s the difference between a regular magnet and electromagnet?

    Reply
  61. Abigail Vela

    Tobias’ jokes are super funny, they brighten up my day!

    Reply
  62. Camden Hamilton

    Learned a lot about magnets from this video.

    Reply
  63. Michaelangelo Villatoro

    Coding is lots of fun.

    Reply
  64. Jaden A. Chesley

    Magnetism is interesting

    Reply
  65. Ciara Kirby

    Snakey 51!!!!

    Reply
  66. Ciara Kirby

    Free r-51!!!!!

    Reply
  67. Caiden Hiner

    Learning about Magnets is amazing

    Reply
  68. Aaron Madura

    My mom is a doctor and is always talking about how dangerous magnets are if swallowed.

    Reply
  69. Cayden Campbell

    I really like the engine model very detailed

    Reply
  70. Cora Schuenke

    I loved seeing the octopus arm! Such a cool lesson.

    Reply
  71. Alina Landaeta

    Snakey 51 was so cute!

    Reply
  72. Madi G. hedgecock

    i really enjoyed the robot arms thought that was extremely cool😆

    Reply
  73. Nylyia

    Learning about Magnetism is super fun!!

    Reply
  74. viread bran aprin

    I love how Dr roger billing and venionnering and do magic thats cool one day I will be the best magician

    Reply
  75. Brinley Brown

    I liked the octopus arm

    Reply
  76. Gabriella Almendarez

    Magnets are interesting.

    Reply
  77. Caleb Seamon

    Magnets are very fun and interesting.

    Reply
  78. `kaitlyn hatcher

    i’ve always been really interested in magnets, this episode especially gave me good insight on them.

    Reply
  79. Ryker B. Abbott

    that octopus arm sure is cool!

    Reply
  80. Kohner Baisden

    I enjoy watching your past videos from before I started Acellus

    Reply
  81. Maya Wossne

    So interesting! Thanks for another awesome video!

    Reply
  82. Kapri

    There is so much to magnets that I didn’t know about. Super cool

    Reply
  83. Sophia Benson

    Was this plane related to the U-2 Stealth plane?✈

    Reply
  84. Kevin Wilson

    I think it’s more of an octopus arm not an elephants trunk because it does not have a nose to grab things at the end

    Reply
  85. Kilian

    As an aviation nerd when he started taking about aircraft I got very excited because from the first description he said I knew he was talking about the SR-71 Blackbird. Also the image shown with Kelly the aircraft he had his hand on is called the F-104 Starfighter. I can go on for hours about aircraft so if you want to know more just ask.

    Reply
  86. London

    what are the strongest magnet

    Reply
  87. Allison Lewis

    That snaky 51 video was funny.

    Reply
  88. Gage Hasselmann

    I didn’t know Roger Billings made a book

    Reply
  89. Brayden

    Magnets are awesome I didn’t know they could do so much

    Reply
  90. Noelle Rosie Maltese

    Magnets are amazing

    Reply
  91. Nehemiah kaleb

    Magnetism is fun thank you for the knowledge, I am saving my gold coins to buy a backpack.

    Reply
  92. Tristan Davis

    Seriously so cool

    Reply
  93. Kevani

    what’s the difference between a regular magnet and electromagnet?

    Reply
  94. Audrey E

    Magnetism rocks!

    Reply
  95. Maddy

    Magnets are cool!

    Reply
  96. Brieanna Wright

    I LOVE magnets

    Reply
  97. Matthew Stoerzinger

    Interesting to learn more about electromagnets and the hydrogen engine

    Reply
  98. Jackson B.

    The octopus arm that that scientist made is very cool to watch and the fact that it can run on only three strings is amazing.

    Reply
  99. Miranda Stiver

    I actually had no idea (probably forgot) that you could use Acellus Gold to buy merchandise, thanks for letting us know!

    Reply
  100. Micah Washington

    Thank you! this was very interesting

    Reply
  101. Cammile

    I learned that if you wrap wire many times around a piece of metal you can make a electromagnetic.🧲

    Reply
  102. Kaden

    Love this video!

    Reply
  103. minerva

    I love love LOVE learning about magnetism!

    Reply
  104. Calogero

    Magnets rock!

    Reply
  105. Vivian Dowell

    magnets are amazing

    Reply
  106. Brewington

    How did the creation of magnets help our modern society advance overtime?

    Reply
  107. Persefinie

    i love playing with magnets!

    Reply
  108. asher woods

    i love magnets so much!

    Reply
  109. Fiona M

    R51 is very helpful!

    Reply
  110. Melodi Shortlidge

    When he started teaching us about the RS 71, it really captured my attention im going to do some more reasearch on it, thank you for adding that into the live.

    Reply
  111. Julian

    Magnets are so cool!

    Reply
  112. Gunnar Bendorf

    Love it!

    Reply
  113. Bakari Blocton

    magnets are really something else! thanks for all the info Mr. billings!

    Reply
  114. Mazzy

    Love this! It’s sooo cool!

    Reply
  115. Oliver Black

    We have evolved a lot with airplanes, and jets they’re just getting more and more faster by the year! I would say my favorite jet is the F-35b lightning II, the one that can fly vertically!

    Reply
  116. Nola

    Magnets are so cool!!

    Reply
  117. Avery Dubiel

    i love coding!

    Reply
  118. julius young jr

    why did they choose to use an octopus to base their machine on

    Reply
  119. sophia benenati

    wow

    Reply
  120. Anas Andrews

    will the be able to make a jet that goes light speed? Another question is, is the tentacle a machine that uses code or do u have to control it yourself?

    Reply
  121. Benaiah Kaleb

    It was very shocking that when they were building a plane that could go Mach 3.2 and just
    so they can know where they are they would use the ANS, and all it just did was look up at the stars, and it would know where it is.

    Reply
  122. Varvara Erofeeva

    I really liked it, thank you!

    Reply
  123. Lily Allen

    i love magnets they’re sooo cool!

    Reply
  124. Abigail Varnell

    wow so cool

    Reply
  125. Bianca Champlain

    COOLLLL!!!!

    Reply
  126. nathan

    i liked the end with the snake that was very funny i died laughing

    Reply
  127. Brandon

    magnets are awesome

    Reply
  128. mechi

    btw the black bird at high altitudes its fuel tank froze on purpose to stop leaks

    Reply
  129. Skyler Hebert

    When where magnets made?

    Reply
  130. Lavienna C

    We can do so much with the electromagnet. Making it upside down was so smart!!! I need to keep saving to get the book. Can’t wait

    Reply
  131. James Hines

    Cool plane

    Reply
  132. Nerissa Soto

    magnetism is very interesting

    Reply
  133. Kyndal

    That was very cool:)

    Reply
  134. vivienne robillard

    I throughly enjoyed this talk! So informative and interesting!

    Reply
  135. Makensie Moore

    I learned that engines pull in air. Great video.

    Reply
  136. Asher Russell

    Area 51 guy is hilarious

    Reply
  137. Eldad Gedleselase

    It is so cool how electromagnets work science live has taught me so much about magnetic fields and magnets, I am also learning so much history about a lot of stuff. And it is also amazing how magnets were crucial for the hydrogen engine.

    Reply
  138. harmony schaechtel

    magnets make cool fidget toys too.

    Reply
  139. Madison Jarcki

    Thank you! for sharing the story of the SR-71. I loved watching this amazing video!

    Reply
  140. Annabeth Chase

    Comment if you want to see Dr.B

    Reply
  141. Isabella Blake

    I really enjoyed learning about the SR-71. AC-D2 is such a cool robot! I loved taking the robot class! Magnetism is so cool and interesting. I know a lot more about magnets now!

    Reply
  142. James Wood

    Magnets have always interested me since I was younger

    Reply
  143. Jeremiah Wade

    Very cool information about magnetism.

    Reply
  144. Victoria

    Magnets are some of the most interesting things. We have giant magnetic fields all the way to small fridge magnets. Magnets have brought us so much already but I wonder what more they can tell us about the world around us.

    Reply
  145. khloe mogg

    I think magnetism is SO cool!!

    Reply
  146. Paris Scott

    Does a voltage device determine how much electricity runs through the wires?

    Reply
  147. alisi Padilla

    This live was truly fascinating

    Reply
  148. Khaliyah King-Lewandowski

    Using magnets in everyday life is super cool

    Reply
  149. kaylee

    love science live!

    Reply
  150. Klayten Smith

    I didn’t realize the logarithmic shape was the one that had the most control, how cool!

    Reply
  151. Scarlet Harris

    Where do you think those robotic arms will be used in the future?

    Reply
  152. Taylor

    Magnets are cool

    Reply
  153. Emily Guerrero

    It’s cool how octopuses can pick a bunch of stuff with there legs it’s so satisfying to watch lol octopuses are incredibly smart

    Reply
  154. Giselle Vega

    Magnets are amazing!

    Reply
  155. Angel

    When I was little, I would get my mom to buy me magnet toys to play with. I would sit down and play with magnets for hours.

    Reply
  156. Jonah Vasquez

    My brother said magnetism and gravity are linked. Is this true?

    Reply
  157. Jocelyn Perez

    I love learning about magnets and the magnetic field!

    Reply
  158. Henry salter

    We looked at the store. There’s some cool stuff on there!

    Reply
  159. Nathanial R

    So that’s what helped make the hydrogen engine. Cool!

    Reply
  160. Aiden Moore

    Never thought about all the ways magnet are used in everyday life

    Reply
  161. Colter Trusty

    It’s crazy how magnets have such a big impact on a lot of things! These videos are awesome!

    Reply
  162. William Balen

    Wow! How brilliant it was to turn the valve upside down and close it with the explosion versus just the pressure of the hydrogen!

    Reply
  163. Adelyn Blake

    I really enjoyed learning about the SR-71 and how it was originally called the RS-71. I thought the invention of it was so interesting! I also was shocked by the jet that traveled from New York to London in under 2 hours!

    Reply
  164. Damon Cox

    Magnets are awesome.

    Reply
  165. Logan Phillips

    When I was little I thought magnets were magic. So cool to learn the science of them.

    Reply
  166. RileyMills

    this has to be my favorite episode yet

    Reply
  167. Elisiyana Louis

    The Breakthrough Moments in Science segment is definitely my favorite part in these lives, I look forward to them every time!

    Reply
  168. Gordon hall

    This is awsome thank you Roger billings

    Reply
  169. Matthew Bispo

    It’s fascinating the way magnetism works

    Reply
  170. Creston Jones

    Wow! Magnetic power gets two thumbs up.

    Reply
  171. Clamon Barrett

    Magnetism is so cool

    Reply
  172. Kashen Logan jr

    Magnetism is like magic but real🧲🪄

    Reply
  173. Morgan Briggs

    I have always loved to learn more about magnets.

    Reply
  174. Griffin Johnson

    Love the octopus arm!

    Reply
  175. Isabella Nesmith

    So Cool! Love the Star Wars comments. And the octopus/spiral arm demonstration was very interesting.

    Reply
  176. Gabriel Harrington

    Magnets are so weird! They’re so involved with our lives, but still so hard to understand… this video has helped with my understanding just a little bit more!

    Reply
  177. eb saleh

    now i know the story of the SR-71 thanks for sharing

    Reply
  178. Jessica Romero

    So cool

    Reply
  179. Asher Rice

    What a cool video!!

    Reply
  180. Malaysia

    Magnetism is very interesting.

    Reply
  181. Vicktorie Z

    I learned bamboo is used to make lightbulbs and they use a vacuum to get all the air out

    Reply
  182. William Hunter Eakin

    Cool interesting facts about magnets and how they work.

    Reply
  183. Ajah Phifer

    Why were magnets made?

    Reply
  184. Long Dang

    I’ve learned a lot of magnet facts in this amazing video 😀

    Reply
  185. amelia

    where would we be without magnets honeslty

    Reply
  186. Sophia Mowry

    R 51 is so funny every time he on science live. He’s my favorite person on science live ( except for The Big R )

    Reply
  187. Ava Nelson

    Wow

    Reply
  188. Lila

    This was a very cool video!

    Reply
  189. Hannah Millman

    Do they think that is how an octopuses arms work?

    Reply
  190. Evangeline McMahill

    awesomeee

    Reply
  191. Megan Almond

    It’s always amazing to me how scientists think outside of the box to try so many different things when inventing stuff.

    Reply
  192. Jayden Batista

    this was a cool video explaining how magnets And electromagnets are essential to Scientific innovation. thanks

    Reply
  193. Victoria Jimenez

    It’s crazy how magnets have such a big impact on a lot of things

    Reply
  194. Noah Townsend

    great video!

    Reply
  195. Xavier Townsend

    Very Cool!!

    Reply
  196. Evangeline McMahill

    coolll

    Reply
  197. Justin Estevez

    I researched what that octopus arm was, and its called Spirobs. I thought that it was crazy cool!

    Reply
  198. Caiden

    Can gold get magnetized???

    Reply
  199. Kailey Holman

    I will have to ask my mom to watch Star wars now! This was a very cool lesson!

    Reply
  200. Jason Grace

    Can’t lie I love the Star Wars Comments and I love the cool slide show of the Octopus arm!!!

    Reply
  201. Mason Collier

    Magnetism is so cool!

    Reply
  202. Nathan Drbohlav

    First, I think that the jokes at the beggining were great. Second, Tobias, where did you get your airplane blueprint tie? I would love one for myself!

    Reply
  203. Jameson

    Call 911! R51 has been attacked!

    Reply
  204. Lily Ferguson

    Can magnets rust just like metal?

    Reply
  205. mimi

    thank you.

    Reply
  206. Orion Anthony Anagnostou

    I liked when Snakey-51 bit R-51 because that was silly to me

    Reply
  207. Logan Rentner

    Magnets are really cool and I have lots of fun just messing around with them!

    Reply
  208. Kadija Bah

    This is amazing. Magnets are cool

    Reply
  209. Kennedy

    Magnets helped with many inventions

    Reply
  210. Perseus Jackson

    Q:
    Why did the magnet go to the party?

    A:
    To find its magnetic personality and attract new friends! But be careful, it might also pick up some unwanted metal guests along the way.

    “Remember, in the world of Fun with Magnetism, it’s all about attraction, not repulsion!”

    Reply
  211. Tino

    Dr. B is very smart. So glad we have him as a teacher too.

    Reply
  212. Perseus Jackson

    Hello everyone! Comment on this post if y’all want to meet Dr. Roger Billings!!!

    Reply
  213. Persephone Davis

    Well can never go wrong when using a Star Wars example! As always very interesting.

    Reply
  214. Sasha Golub

    I would definitely like to ride in the in that airplane to think that it travels so fast is crazy!!

    Reply
  215. Brenan Anderson

    What is the most interesting fact about a magnet?

    Reply
  216. carlee mashek

    Dr. B’s knowledge is extraordinary! I am shocked every time by how much he knows.

    Reply
  217. Max McCall

    how does the fake octopus arm pick stuff up vertically? and is there a limit to the weight it can pic k up ?

    Reply
  218. Madison

    Very interesting video

    Reply
  219. Libby

    This episode was really interesting

    Reply
  220. John Deere

    I was one of the original designers for the RS-71, it was a fun plane to build.

    Reply
  221. Joseph

    cool

    Reply
  222. karsyn mitchell

    magnetism is just like magic

    Reply
  223. Elijah Baldwin

    R-51 is so funny

    Reply
  224. Gracelyn Berrios

    Wow that was really cool it’s so interesting how that works!

    Reply
  225. Juliann

    Wow that jet is beyond amazing! This is my favorite video so far, it’s amazing a missle shot at that jet over 1,000 times and didn’t get hit! And going to NY to London! I searched that it takes five hours to go from NY to London but with the jet it said it can take 1:55! I hope there is more videos like this! Thank you.

    Reply
  226. Piper

    I love Star Wars definitely made me listen a little harder to the video !!

    Reply
  227. Jackson Allen

    Did the direct Hydrogen injection valve operate well over long term?

    Reply
  228. Kayla Ferguson

    Snakey-51 is soo cute!

    Reply
  229. Anassa Nomura

    How do you make the octopus arm?

    Reply
  230. Makayla cook

    Really fun video!!

    Reply
  231. Katya

    The octo-bot arm was definitely the highlight for me

    Reply
  232. Nathan Brand

    Its neat how a curved snake like tale or arm can move in that many directions

    Reply
  233. Jordan Benson

    Nice! 🧲

    Reply
  234. Autumn eure

    Nice video

    Reply
  235. Benji S.

    Catching back up on the live streams! Though this episode was very good especially When Dr. Billings did his demonstration with the bell contraption towards the end! thanks.

    Reply
  236. cayden

    when is the science fare

    Reply
  237. Heidie Brown

    in one epispde it was talking about a rubix cube it was so cool does anyone know if it is real?

    Reply
  238. Skyler

    wow!

    Reply
  239. Ephraim Blackwelder

    Ilove this science live because it talks about all the uses of electromagnets and how you can make them. I am going to make an electromagnet and do very cool expiriments with it to see if it has any limits. I never realized how easy they are to make and now I’m going to have a lot of fun with the one I’m about to make.

    Reply
  240. Kyle angus

    Cool Stuff!!!

    Reply
  241. Adaline

    The octopus arm is a really cool concept. What are they planning to use this for in the real world. It would be interesting to see how this is applied to the real world.

    Reply
  242. Emma Graham

    Star Warssss yayyy!!

    Reply
  243. Emma Graham

    Magnetism is such a cool topic to think about! I learned so many things today thank y’all!

    Reply
  244. Isabella

    omg I LOVE that guy at the start of literally every scinece live video. i call him “The Comedy
    Guy”. XD Whats that dude’s name? ALSO… why’d they remove the hilarious Pajet intros???? I miss them… 🙁

    Reply
  245. Max McCall

    the aircraft melting is the only limiting factor to its top speed, That is astonishing to me.
    How fast would they have to be to activate the ram jet?

    Reply
  246. Kamilah Bello

    I really enjoyed this topic, I would like to take that flight from NY to London in 1 hour and 55 minutes. I wish all travel could be that fast. I also enjoyed learning about the Astro Inertia Navigation system (ANS) and its reference to R2D2 in Star wars. That was really cool!

    Reply
  247. Megan Almond

    I love the Star Wars references! Overall this was a very interesting video!

    Reply
  248. Christian

    Thank you

    Reply
  249. Jude Savino

    Huh, that Jet is interesting.

    Reply
  250. Gerald Romain

    I like this video it was very interested ,i love magnetism . Hope i see more videos like this.

    Reply
  251. hayden

    crazy what it is and how it works

    Reply
  252. Varvara

    Wow, that was really fun. Thanks!!

    Reply
  253. Billy Truelove

    Theres plans to build a functioning darkstar

    Reply
  254. Calla Hostler

    R-51 responded to ni=NO INTELLGENS and that’s what I read.

    Reply
  255. Christian M.S Ross

    It’s an amazing livestream like always :3 magnetism sound like fun topic to learn

    Reply
  256. Carson Lord

    Hello from. Georgia . Missed this live on wednesday. doing it today

    Reply
  257. Samantha Ojo

    I learned that when you have a bolt, and you wrap it around with some wire it turns into an electromagnet.

    Reply
  258. Samson Ojo

    I learned that the octopus does this thing where it quarrels back and then it reaches back and then as soon as it touches the object then it starts wrapping and then when it’s wrapped it tightens.

    Reply
  259. Zafar Hutchinson

    That robot arm grabbing stuff is so insane! So is the jet! I just learned that the jet can go to Mach 3.3! I like how the coil becomes a magnet! Also, that so-called “Snake51” is not a real snake, and the “snake bite” was personal! 🤣🤣

    Reply
  260. Logan Lathigee

    Is this a continuation of the last one

    Reply
  261. Simon Kulisics

    It was good.I liked that video

    Reply
  262. Simon

    It was good.I liked that video

    Reply
  263. Sophia Garcia

    Magnets can be found everywhere. I like walking around with my fridge magents to see what magentic objects i can find in my house

    Reply
  264. Kolten Wilcox

    It’s cool the black paint helped with the heat.

    Reply
  265. Laci

    looks fun!

    Reply
  266. Noah Lair

    I did not know that is where I can code, thanks for the information!

    Reply
  267. Martyn Swanepoel

    I did not know you can find the the north and south pole of a magnet on your own

    Reply
  268. Albaraa

    Fascinating

    Reply
  269. Crystal Clark

    Seraphine Clark watched this one we fell behind do to I was out of town for a week and she was with her grandmother. I thought they watched it. She watched this episode on Feb. 28. Thank You.

    Reply
  270. Evie Soucie

    Filling the gas tank in the air seems crazy!

    Reply
  271. Maddison

    Why can metal become magnetized?

    Reply
  272. alexander lombard

    lots of fun

    Reply
  273. alexander

    cool

    Reply
  274. alexander lombard

    interesting

    Reply
  275. alexander lombard

    cool

    Reply
  276. Jerimiah Reaves

    Hello, I am new to this academy and I am enjoy these videos.

    Reply
  277. christian bryant

    every day someone is making or descuvering new things

    Reply
  278. najahla hoskins Charlotte

    Great. Thank you.

    Reply
  279. najahla hoskins

    Great. Thank you.

    Reply
  280. Again Hoskins charlotte

    Good show.

    Reply
  281. Again Hoskins

    Good show.

    Reply
  282. Daniel Cuter

    I love magnets

    Reply
  283. Aliyah

    What’s your favorite type of magnet

    Reply
  284. Daden Olson

    I love watching these videos

    Reply
  285. suraiea

    I once hit two magnets together and almost set my room on fire. why did it spark?

    Reply
  286. Luke Carlton

    cool

    Reply
  287. Sophia Benenati

    wow, this is amazing

    Reply
  288. Rayleigh sherley

    This is interesting thing about magnetism.

    Reply
  289. Jacob Benenati

    in the last epasode that you mad i have that same magnet

    Reply
  290. Coralynn Puska

    I love magnetism! Its like magic!🪄🪄

    Reply
  291. howard

    I all ways wanted to know how magnetism works.

    Reply
  292. NGUYEN CAM THANH LONG

    it’s an exciting video

    Reply
  293. Gracie Hodges

    I think that the 3-D printed octopus tentacle was a very creative, and entertaining bit to watch.

    Reply
  294. Ashton Coleman

    Jet engines are crazy!

    Reply
  295. Nguyễn Cẩm Thành Long

    Magnets are awesome. I’m interested in the magnet I asked for from my father

    Reply
  296. Khaldoun Al Maleh

    Never knew how important magnets were in hydrogen engines.

    Reply
  297. Alora

    I wonder what these robotic octopus arms are going to be used for. Construction, maybe? Humans have taken ideas from animals and used them for other things many times.

    Reply
  298. Amayah Bethea

    Did you know telescopes can measure magnetic fields by observing polarized light emitted by hot gas in space. The polarized light is affected by the magnetic field, which astronomers can use to measure the strength of the magnetic field.

    Reply
  299. Barrett Pirtle

    interesting how magnets can pull an item right to it if it’s close enough. How close do you have to be?

    Reply
  300. Zoe Babcock

    awesome thank you for this information

    Reply
  301. Stacia Shinberg

    Great video

    Reply
  302. Stefan Ginter Slavujevic

    That octopus tentacle was actually really cool, it’d take some time but I should 100% 3d print it. Are the files available online somewhere?

    Reply
  303. Ethan Kelley

    More on engines would be cool.

    Reply
  304. Emily

    what makes magnets connect

    Reply
  305. Ezra Veith

    how hot does the thing that presses down on it have to be to have the picture ingraved onto the shirt?

    Reply
  306. chrissy

    what is the strongest magnets in the world

    Reply
  307. Hunter

    The black plane they talked about is made of titanium, what is titanium?

    Reply
  308. Jada R. S. Pace-Kitchen

    Magnets are pretty cool!

    Reply
  309. Jordan Benson

    Magnets are interesting

    Reply
  310. Charlie

    I wonder if you can make artificial Magnetic Fields and harnest energy from it. I also wonder if you can Just take a lot of magnet’s and make the magnet stronger. I should do an experiment on that.

    Reply
  311. Kaylyn

    Cool

    Reply
  312. Rho zapf

    How fun is magic in this world

    Reply
  313. Lilly. Billings.

    How has nobody commented yet this was a treat for me! 🙂

    Reply
  314. Madilynn Wentz

    Magnetism is one of the most entertaining parts of science.

    Reply
  315. jojos

    r51 has been bitten twice now poor guy

    Reply
  316. Joshua Bryant

    Who discovered the magnetic field in the earth

    Reply
  317. Liam Hopkins

    Please be aware that we watched this episode and commented but it does not show on our account – there must have been some sort of glitch. We just want to make sure it doesn’t count against the scholarship since it is not showing! Thank you!

    Reply
  318. Kanyarak Pongpithanon

    What are magnets made of?

    Reply
  319. Rat Mom

    Wow this was amazing! thankyou so much for this video.

    Reply
  320. E l l a R o s e

    I loved this Science Live

    Reply
  321. Mavrik

    who created the turbo ram jet.

    Reply
  322. Londyn Carroll

    Very interesting video this week!

    Reply
  323. Dean Dunaway

    DR Billings, Could anybody go and buy a hydrogen car? and how much does hydrogen cost?

    Reply
  324. Joshua Wright

    I always find magnets fascinating, and I find it very interesting how they were used to develop the hydrogen engine.

    Reply
  325. Josie Evans

    Did not know magnets that worked in the junkyards were electric magnets.

    Reply
  326. Kaiden Rhinehart

    Magnets are so cool;

    Reply
  327. Aaron

    Thankyou for teaching me every week doctor billings

    Reply
  328. Lily Smith

    What is magnetism?

    Reply
  329. Rylan Van Blarcom

    What was the first hydrogen vehicle your invention was tested on?

    Reply

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