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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385 Comments

  1. 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
  2. Jonah

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

    Reply
  3. Jocelyn

    I love learning about magnets and the magnetic field!

    Reply
  4. Henry

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

    Reply
  5. Nathanial

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

    Reply
  6. Aiden

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

    Reply
  7. Colter

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

    Reply
  8. William

    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
  9. Adelyn

    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
  10. Damon

    Magnets are awesome.

    Reply
  11. Logan

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

    Reply
  12. Rileymills

    this has to be my favorite episode yet

    Reply
  13. Elisiyana

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

    Reply
  14. Gordon

    This is awsome thank you Roger billings

    Reply
  15. Matthew

    It’s fascinating the way magnetism works

    Reply
  16. Creston

    Wow! Magnetic power gets two thumbs up.

    Reply
  17. Clamon

    Magnetism is so cool

    Reply
  18. Kashen

    Magnetism is like magic but real🧲🪄

    Reply
  19. Morgan

    I have always loved to learn more about magnets.

    Reply
  20. Griffin

    Love the octopus arm!

    Reply
  21. Isabella

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

    Reply
  22. Gabriel

    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
  23. Eb

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

    Reply
  24. Jessica

    So cool

    Reply
  25. Asher

    What a cool video!!

    Reply
  26. Malaysia

    Magnetism is very interesting.

    Reply
  27. Vicktorie

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

    Reply
  28. William

    Cool interesting facts about magnets and how they work.

    Reply
  29. Ajah

    Why were magnets made?

    Reply
  30. Long

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

    Reply
  31. Amelia

    where would we be without magnets honeslty

    Reply
  32. Sophia

    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
  33. Ava

    Wow

    Reply
  34. Lila

    This was a very cool video!

    Reply
  35. Hannah

    Do they think that is how an octopuses arms work?

    Reply
  36. Evangeline

    awesomeee

    Reply
  37. Megan

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

    Reply
  38. Jayden

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

    Reply
  39. Victoria

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

    Reply
  40. Noah

    great video!

    Reply
  41. Xavier

    Very Cool!!

    Reply
  42. Evangeline

    coolll

    Reply
  43. Justin

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

    Reply
  44. Caiden

    Can gold get magnetized???

    Reply
  45. Kailey

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

    Reply
  46. Jason

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

    Reply
  47. Mason

    Magnetism is so cool!

    Reply
  48. Nathan

    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
  49. Jameson

    Call 911! R51 has been attacked!

    Reply
  50. Lily

    Can magnets rust just like metal?

    Reply
  51. Mimi

    thank you.

    Reply
  52. Orion

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

    Reply
  53. Logan

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

    Reply
  54. Kadija

    This is amazing. Magnets are cool

    Reply
  55. Kennedy

    Magnets helped with many inventions

    Reply
  56. Perseus

    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
  57. Tino

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

    Reply
  58. Perseus

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

    Reply
  59. Persephone

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

    Reply
  60. Sasha

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

    Reply
  61. Brenan

    What is the most interesting fact about a magnet?

    Reply
  62. Carlee

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

    Reply
  63. Max

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

    Reply
  64. Madison

    Very interesting video

    Reply
  65. Libby

    This episode was really interesting

    Reply
  66. John

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

    Reply
  67. Joseph

    cool

    Reply
  68. Karsyn

    magnetism is just like magic

    Reply
  69. Elijah

    R-51 is so funny

    Reply
  70. Gracelyn

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

    Reply
  71. 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
  72. Piper

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

    Reply
  73. Jackson

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

    Reply
  74. Kayla

    Snakey-51 is soo cute!

    Reply
  75. Anassa

    How do you make the octopus arm?

    Reply
  76. Makayla

    Really fun video!!

    Reply
  77. Katya

    The octo-bot arm was definitely the highlight for me

    Reply
  78. Nathan

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

    Reply
  79. Jordan

    Nice! 🧲

    Reply
  80. Autumn

    Nice video

    Reply
  81. Benji

    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
  82. Cayden

    when is the science fare

    Reply
  83. Heidie

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

    Reply
  84. Skyler

    wow!

    Reply
  85. Ephraim

    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
  86. Kyle

    Cool Stuff!!!

    Reply
  87. 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
  88. Emma

    Star Warssss yayyy!!

    Reply
  89. Emma

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

    Reply
  90. 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
  91. Max

    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
  92. Kamilah

    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
  93. Megan

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

    Reply
  94. Christian

    Thank you

    Reply
  95. Jude

    Huh, that Jet is interesting.

    Reply
  96. Gerald

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

    Reply
  97. Hayden

    crazy what it is and how it works

    Reply
  98. Varvara

    Wow, that was really fun. Thanks!!

    Reply
  99. Billy

    Theres plans to build a functioning darkstar

    Reply
  100. Calla

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

    Reply
  101. Christian

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

    Reply
  102. Carson

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

    Reply
  103. Samantha

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

    Reply
  104. Samson

    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
  105. Zafar

    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
  106. Logan

    Is this a continuation of the last one

    Reply
  107. Simon

    It was good.I liked that video

    Reply
  108. Simon

    It was good.I liked that video

    Reply
  109. Sophia

    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
  110. Kolten

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

    Reply
  111. Laci

    looks fun!

    Reply
  112. Noah

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

    Reply
  113. Martyn

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

    Reply
  114. Albaraa

    Fascinating

    Reply
  115. Crystal

    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
  116. Evie

    Filling the gas tank in the air seems crazy!

    Reply
  117. Maddison

    Why can metal become magnetized?

    Reply
  118. Alexander

    lots of fun

    Reply
  119. Alexander

    cool

    Reply
  120. Alexander

    interesting

    Reply
  121. Alexander

    cool

    Reply
  122. Jerimiah

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

    Reply
  123. Christian

    every day someone is making or descuvering new things

    Reply
  124. Najahla

    Great. Thank you.

    Reply
  125. Najahla

    Great. Thank you.

    Reply
  126. Again

    Good show.

    Reply
  127. Again

    Good show.

    Reply
  128. Daniel

    I love magnets

    Reply
  129. Aliyah

    What’s your favorite type of magnet

    Reply
  130. Daden

    I love watching these videos

    Reply
  131. Suraiea

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

    Reply
  132. Luke

    cool

    Reply
  133. Sophia

    wow, this is amazing

    Reply
  134. Rayleigh

    This is interesting thing about magnetism.

    Reply
  135. Jacob

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

    Reply
  136. Coralynn

    I love magnetism! Its like magic!🪄🪄

    Reply
  137. Howard

    I all ways wanted to know how magnetism works.

    Reply
  138. Nguyen

    it’s an exciting video

    Reply
  139. Gracie

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

    Reply
  140. Ashton

    Jet engines are crazy!

    Reply
  141. Nguyễn

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

    Reply
  142. Khaldoun

    Never knew how important magnets were in hydrogen engines.

    Reply
  143. 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
  144. Amayah

    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
  145. Barrett

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

    Reply
  146. Zoe

    awesome thank you for this information

    Reply
  147. Stacia

    Great video

    Reply
  148. Stefan

    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
  149. Ethan

    More on engines would be cool.

    Reply
  150. Emily

    what makes magnets connect

    Reply
  151. Ezra

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

    Reply
  152. Chrissy

    what is the strongest magnets in the world

    Reply
  153. Hunter

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

    Reply
  154. Jada

    Magnets are pretty cool!

    Reply
  155. Jordan

    Magnets are interesting

    Reply
  156. 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
  157. Kaylyn

    Cool

    Reply
  158. Rho

    How fun is magic in this world

    Reply
  159. Lilly.

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

    Reply
  160. Madilynn

    Magnetism is one of the most entertaining parts of science.

    Reply
  161. Jojos

    r51 has been bitten twice now poor guy

    Reply
  162. Joshua

    Who discovered the magnetic field in the earth

    Reply
  163. Liam

    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
  164. Kanyarak

    What are magnets made of?

    Reply
  165. Rat

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

    Reply
  166. E

    I loved this Science Live

    Reply
  167. Mavrik

    who created the turbo ram jet.

    Reply
  168. Londyn

    Very interesting video this week!

    Reply
  169. Dean

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

    Reply
  170. Joshua

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

    Reply
  171. Josie

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

    Reply
  172. Kaiden

    Magnets are so cool;

    Reply
  173. Aaron

    Thankyou for teaching me every week doctor billings

    Reply
  174. Lily

    What is magnetism?

    Reply
  175. Rylan

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

    Reply

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