IC – Divide by 3
February 25, 2026 • EPISODE 299
How can tiny transistors do math? In this episode of Science LIVE with Roger Billings, discover how integrated circuits use logic gates and on-and-off transistors to multiply, divide, and process numbers. See how a simple “divide by 3” circuit is built—and how millions of these tiny switches working together make today’s powerful computers possible.
Roger Billings also talks about the engineering behind the Falcon 9 from SpaceX. In addition, learn how gallium could be used to generate hydrogen as a clean energy source, highlighting exciting possibilities for future energy innovation.
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 »
That eye story was interesting
its very cool how they can put a certain type of bactura to kill cancer will it work??
What is the Bacteria made out of that fights the cancer?
I liked when Caleb and David talked an IC that can divide by any number up to 99, and I also liked the western division battle.
THE CANCER CELLS ARE SUPER INTERESTING!!!!!!!!!
Watching from North Carolina!!
good job western mathers
Our brain can do so much and we don’t even realize!
I’d love to get an update on the cancer treatment.
How can you make a digital clock using a decade counter?
the brain can do a lot of things
I love SCIENCE live.
this metal thing can melt on hot water that awsome
I like the part where they were dressed up like cowboys.
I liked the portages there funny
This is so amazing! I wish I could go to one of these in person!
Hi Dr. Roger Billings. This Wednesday class was so interesting. I liked to learn about How to Divide by 3 with IC. Can’t wait for next Week!
I liked the Proteges dividing device.
R-51 and the Protégés are my favorite part of the sience live.
I had no idea that our brains could do those things!!!
Dusty Dave and Crusty Cal lol
Our brains are so cool!
Had an amazing time watching this live cant wait for the next one. Im so excited to see what other lives are to come in the future. Im from GA i really enjoy the lives that ya’ll post i have so much fun watching them
I really enjoyed learning about Alan Blumlein!
I loved the western theme for this video
The brain is so amazing i hope this will work for all cancers
wow, that was so cool about the brain and stuff!
The cowboy part was pretty cool in my eyes, I really like the math inventions!
The protégé’s are great and r 51 is flipping stuff that we learn upside down. The new rocket sounds cool!
I loved the western theme for this one
thats a huge rocket
I loved the technolgy part this week!
That’s cool fact about gallium
Watching from Chicago! I love Science Live!
It’s so crazy that they can use any type of water for this.
Science is amazing.
I find the part about how stereo was created!
I want to learn more about the Circuit board
I love acellus live 🙂
I liked the r51
love watching science live so much fun to watch.
I did not know Alen blumlein invented stereo, thats really cool! It’s also fascinating how your ears and brain work together like that.
I loved the science live today : )
I was in California recently and was able to see the Starlink launch. It was a great experience.
I LOVE the protegessssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
interesting about the graduation plan. If I know what I would like to do after High School can I go ahead and do a graduation plan now? I am currently the sixth grade.
Is there a high risk of transfering the bacteria elsewhere throughout the body when trying to kill the cancer cells?
Yeehaw from Georgia!
I did not know that the Wild West was full of division🤯
Had fun watching this video!!
Wow! Learning about the brain was so interesting!
How much force does it take for the rocket to blast off into the sky?
This one made me think!
Gallium is my new favorite material now!
the brain is so mezmorizing
Do you think Starlink will replace the internet someday?
Hi from Illinois, the brain is so interesting!
That’s really cool — I liked learning about how they figured out how to make sound have depth and provide an experience like you would in real life.
where can you buy gallium?
Cancer is super scary, I hope I never have to deal with it
The brain is such an amazing organ!!!
Hello from Missouri! <3
Very funny and I love what point it’s making.
This was my favorite episode yet!
Science live is so fun to watch!!!
Would taking atoms from the gallium change it to something different? I don’t mean like a different material, like different type of gallium.
This video was so much fun to watch and im definetely looking forward to more!!!!!!!!!!!!!!!!!!
It was funny seeing David and Caleb dressed as cowboys
❤️❤️❤️❤️❤️❤️❤️💕💕❤️💕💕
I love watching Science Live!
The brain can really do some crazy things sometimes!
Had fun watching this video
This was so cool!
The brain is amazing
My fav is R51
I love science live its so cool
Area 51 WAS FUNNY🤣🤣🤣
😍😌🤣
How far out are we for an actual cure to cancer using the principals mentioned today?
the brain is awesome!
Thank you Acellus!
I really hope they find something to cure cancer!
That was interesting to hear about the brain.
The sound part of the movie theater was really cool!
I love science live because I learn different things every week and I learn so much from science live .
What time is the science live?
Thank you for explaining the whole education plan process. I think I’m going to watch that fantasia movie, after all you’ve described. Science live is the best. Dr Roger Billings is like a dad figure to many. Wow. If only I could see that rocket. What did you guys think about this episode?
I love the illustration. Very cool.
Always love the inventioneers and prodiges!
how long do will the the prosess take to create hydrogen using Gillian take.
The brain is really cool. My mom also loves the brain. She talks about it all the time.
When will the cancer eating bacteria be used in the world?
The skits are so funny.
how do stars move
The gallium is so amazing!
This episode was so fun!
i LOVE SCIENCE LIVE
Is gallium anything like oobleck?
Thanks for making these videos. There they’re fun to watch. Hi from Montana!