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.


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About the Roger Billings Scholarship Program »

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185 Comments

  1. Calogero

    Magnets rock!

    Reply
  2. Vivian Dowell

    magnets are amazing

    Reply
  3. Brewington

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

    Reply
  4. Persefinie

    i love playing with magnets!

    Reply
  5. asher woods

    i love magnets so much!

    Reply
  6. Fiona M

    R51 is very helpful!

    Reply
  7. 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
  8. Julian

    Magnets are so cool!

    Reply
  9. Gunnar Bendorf

    Love it!

    Reply
  10. Bakari Blocton

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

    Reply
  11. Mazzy

    Love this! It’s sooo cool!

    Reply
  12. Avery Dubiel

    i love coding!

    Reply
  13. julius young jr

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

    Reply
  14. sophia benenati

    wow

    Reply
  15. 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
  16. 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
  17. Varvara Erofeeva

    I really liked it, thank you!

    Reply
  18. Lily Allen

    i love magnets they’re sooo cool!

    Reply
  19. Abigail Varnell

    wow so cool

    Reply
  20. Bianca Champlain

    COOLLLL!!!!

    Reply
  21. nathan

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

    Reply
  22. Brandon

    magnets are awesome

    Reply
  23. mechi

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

    Reply
  24. Skyler Hebert

    When where magnets made?

    Reply
  25. 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
  26. James Hines

    Cool plane

    Reply
  27. Nerissa Soto

    magnetism is very interesting

    Reply
  28. Kyndal

    That was very cool:)

    Reply
  29. vivienne robillard

    I throughly enjoyed this talk! So informative and interesting!

    Reply
  30. Makensie Moore

    I learned that engines pull in air. Great video.

    Reply
  31. Asher Russell

    Area 51 guy is hilarious

    Reply
  32. 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
  33. 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
  34. eb saleh

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

    Reply
  35. Jessica Romero

    So cool

    Reply
  36. Asher Rice

    What a cool video!!

    Reply
  37. Malaysia

    Magnetism is very interesting.

    Reply
  38. Vicktorie Z

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

    Reply
  39. William Hunter Eakin

    Cool interesting facts about magnets and how they work.

    Reply
  40. Ajah Phifer

    Why were magnets made?

    Reply
  41. Long Dang

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

    Reply
  42. amelia

    where would we be without magnets honeslty

    Reply
  43. 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
  44. Ava Nelson

    Wow

    Reply
  45. Lila

    This was a very cool video!

    Reply
  46. Hannah Millman

    Do they think that is how an octopuses arms work?

    Reply
  47. Evangeline McMahill

    awesomeee

    Reply
  48. 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
  49. Jayden Batista

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

    Reply
  50. Victoria Jimenez

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

    Reply
  51. Noah Townsend

    great video!

    Reply
  52. Xavier Townsend

    Very Cool!!

    Reply
  53. Evangeline McMahill

    coolll

    Reply
  54. Justin Estevez

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

    Reply
  55. Caiden

    Can gold get magnetized???

    Reply
  56. Kailey Holman

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

    Reply
  57. Jason Grace

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

    Reply
  58. Mason Collier

    Magnetism is so cool!

    Reply
  59. 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
  60. Jameson

    Call 911! R51 has been attacked!

    Reply
  61. Lily Ferguson

    Can magnets rust just like metal?

    Reply
  62. mimi

    thank you.

    Reply
  63. Logan Rentner

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

    Reply
  64. Kadija Bah

    This is amazing. Magnets are cool

    Reply
  65. Kennedy

    Magnets helped with many inventions

    Reply
  66. 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
  67. Tino

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

    Reply
  68. Perseus Jackson

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

    Reply
  69. Persephone Davis

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

    Reply
  70. Sasha Golub

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

    Reply
  71. Brenan Anderson

    What is the most interesting fact about a magnet?

    Reply
  72. carlee mashek

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

    Reply
  73. 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
  74. Madison

    Very interesting video

    Reply
  75. Libby

    This episode was really interesting

    Reply
  76. John Deere

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

    Reply
  77. Joseph

    cool

    Reply
  78. karsyn mitchell

    magnetism is just like magic

    Reply
  79. Elijah Baldwin

    R-51 is so funny

    Reply
  80. Gracelyn Berrios

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

    Reply
  81. 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
  82. Piper

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

    Reply
  83. Jackson Allen

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

    Reply
  84. Kayla Ferguson

    Snakey-51 is soo cute!

    Reply
  85. Anassa Nomura

    How do you make the octopus arm?

    Reply
  86. Makayla cook

    Really fun video!!

    Reply
  87. Katya

    The octo-bot arm was definitely the highlight for me

    Reply
  88. Nathan Brand

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

    Reply
  89. Jordan Benson

    Nice! 🧲

    Reply
  90. Autumn eure

    Nice video

    Reply
  91. 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
  92. cayden

    when is the science fare

    Reply
  93. Heidie Brown

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

    Reply
  94. Skyler

    wow!

    Reply
  95. 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
  96. Kyle angus

    Cool Stuff!!!

    Reply
  97. 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
  98. Emma Graham

    Star Warssss yayyy!!

    Reply
  99. Emma Graham

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

    Reply
  100. 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
  101. 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
  102. 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
  103. Megan Almond

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

    Reply
  104. Christian

    Thank you

    Reply
  105. Jude Savino

    Huh, that Jet is interesting.

    Reply
  106. Gerald Romain

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

    Reply
  107. hayden

    crazy what it is and how it works

    Reply
  108. Varvara

    Wow, that was really fun. Thanks!!

    Reply
  109. Billy Truelove

    Theres plans to build a functioning darkstar

    Reply
  110. Calla Hostler

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

    Reply
  111. Christian M.S Ross

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

    Reply
  112. Carson Lord

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

    Reply
  113. Samantha Ojo

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

    Reply
  114. 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
  115. 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
  116. Logan Lathigee

    Is this a continuation of the last one

    Reply
  117. Simon Kulisics

    It was good.I liked that video

    Reply
  118. Simon

    It was good.I liked that video

    Reply
  119. 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
  120. Kolten Wilcox

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

    Reply
  121. Laci

    looks fun!

    Reply
  122. Noah Lair

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

    Reply
  123. Martyn Swanepoel

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

    Reply
  124. Albaraa

    Fascinating

    Reply
  125. 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
  126. Evie Soucie

    Filling the gas tank in the air seems crazy!

    Reply
  127. Maddison

    Why can metal become magnetized?

    Reply
  128. alexander lombard

    lots of fun

    Reply
  129. alexander

    cool

    Reply
  130. alexander lombard

    interesting

    Reply
  131. alexander lombard

    cool

    Reply
  132. Jerimiah Reaves

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

    Reply
  133. christian bryant

    every day someone is making or descuvering new things

    Reply
  134. najahla hoskins Charlotte

    Great. Thank you.

    Reply
  135. najahla hoskins

    Great. Thank you.

    Reply
  136. Again Hoskins charlotte

    Good show.

    Reply
  137. Again Hoskins

    Good show.

    Reply
  138. Daniel Cuter

    I love magnets

    Reply
  139. Aliyah

    What’s your favorite type of magnet

    Reply
  140. Daden Olson

    I love watching these videos

    Reply
  141. suraiea

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

    Reply
  142. Luke Carlton

    cool

    Reply
  143. Sophia Benenati

    wow, this is amazing

    Reply
  144. Rayleigh sherley

    This is interesting thing about magnetism.

    Reply
  145. Jacob Benenati

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

    Reply
  146. Coralynn Puska

    I love magnetism! Its like magic!🪄🪄

    Reply
  147. howard

    I all ways wanted to know how magnetism works.

    Reply
  148. NGUYEN CAM THANH LONG

    it’s an exciting video

    Reply
  149. Gracie Hodges

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

    Reply
  150. Ashton Coleman

    Jet engines are crazy!

    Reply
  151. Nguyễn Cẩm Thành Long

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

    Reply
  152. Khaldoun Al Maleh

    Never knew how important magnets were in hydrogen engines.

    Reply
  153. 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
  154. 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
  155. 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
  156. Zoe Babcock

    awesome thank you for this information

    Reply
  157. Stacia Shinberg

    Great video

    Reply
  158. 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
  159. Ethan Kelley

    More on engines would be cool.

    Reply
  160. Emily

    what makes magnets connect

    Reply
  161. Ezra Veith

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

    Reply
  162. chrissy

    what is the strongest magnets in the world

    Reply
  163. Hunter

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

    Reply
  164. Jada R. S. Pace-Kitchen

    Magnets are pretty cool!

    Reply
  165. Jordan Benson

    Magnets are interesting

    Reply
  166. 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
  167. Kaylyn

    Cool

    Reply
  168. Rho zapf

    How fun is magic in this world

    Reply
  169. Lilly. Billings.

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

    Reply
  170. Madilynn Wentz

    Magnetism is one of the most entertaining parts of science.

    Reply
  171. jojos

    r51 has been bitten twice now poor guy

    Reply
  172. Joshua Bryant

    Who discovered the magnetic field in the earth

    Reply
  173. 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
  174. Kanyarak Pongpithanon

    What are magnets made of?

    Reply
  175. Rat Mom

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

    Reply
  176. E l l a R o s e

    I loved this Science Live

    Reply
  177. Mavrik

    who created the turbo ram jet.

    Reply
  178. Londyn Carroll

    Very interesting video this week!

    Reply
  179. Dean Dunaway

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

    Reply
  180. Joshua Wright

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

    Reply
  181. Josie Evans

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

    Reply
  182. Kaiden Rhinehart

    Magnets are so cool;

    Reply
  183. Aaron

    Thankyou for teaching me every week doctor billings

    Reply
  184. Lily Smith

    What is magnetism?

    Reply
  185. Rylan Van Blarcom

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

    Reply

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