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 »
I love science so much!
science live is really cool.
Gallium is a soft, post-transition metal that’s melts just above room temperature.
Resisters resists and slow down energy.
I love ur science lives!
Watching from California, I love this live lessons they are so informative.
the cowboy part was cool!
Hello watching from North Dakota
I love these lives they teach me so much!
wow i love this video! it taught me about dividing by 3!!!
Science live is so fun
I always learn form these lives they are so fun and interesting!
Hi from Northern Nevada! It’s my first week of homeschooling and I am excited to reach all my weekly goals. Happy Learning, friends.
It’s so cool how we learn so much by just guessing and learning things(paying attention)!
Loved this one! Look forward to these every week
Great live today! Keep up the great work
I’m excited for episode 300!!!
I’m excited for the cancer treating bacteria that will eat the cells
I love watching these videos so educational I love learning about science.
Hello from Georgia!
Science live is amazing!
Watching from Virginia..I enjoyed watching Science lab..
hi from NC!
it’s interesting to see how thing’s we’re invented!!!
Hello from GA
They tried to make a counter circuit that can divide by three.
The math dual was awesome.
hello from Alabama!
Hey from tn.
Hello from Georgia!!
Watching from Indiana!
Hi from Alabama!!
it was a great video I learned so much
Hi from LA!!!!
*I love learning from science live!
hello from chicago
Hi from california
I love the science live.
Hello from Illinois!
This science live is so cool, i’m learning so much!
hello from mt
The protege’s are so funny!
I love these science live
I really liked the part about the rockets. how much does it cost to build a rocket?
I love the cowboy scene!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I love science live, its great to always join. Learning new facts and more.
i liked the cowboy scenes!
I love that the Inventioneer club is having a new kid on their team.
loved this live so much!!
It’s so fun watching the lives
i love these lives!! thank you so much!!!
It sounded like Alan Blumlein wanted surround sound. But without him inventing stereo, (two audio sources) we wouldn’t have audio depth often used in telling a play over the radio or listening to a rock hitting the bottom of a chasm in an adventure film with audio.
These are so cool and educational thank you!
Watching from Mississippi!!
Hi from Colorado
Hello from taiwan!
Hi from Indiana!!
Tuning in from Louisiana.🦞
I replayed a lot of parts, it was truly interesting.
I love theories involving history
Learning about how IC’s work was interesting, seeing how it can use binary to display numbers
Hello from Tennessee!!!
This graduation plan could really help me. It was cool learning about the stereo and also rockets are huge!
The proteges videos, they always make me laugh!
Hey from Texas!!!
i love science lives
hello from Nebraska!!
It is neat how the advancements in technology allow us to do what we are capable of doing today.
thank y’all for putting this on.
this video was amazing,cant wait til next wednesday
now my favorite to watch now!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
this Science Live was great; can’t wait till next Wednesday!
Hello from Texas!
Good Evening from New Jersey!!!
hi from nc
Hi from Nevada
Thank you science live!
Hello from Utah! I love Science
Science Live Rocks
I like to see all the comments about where people are from, I’m from Illinois.
Hi from Japan. I did a cyber security class in Civil Air Patrol and I learned about DDoS attacks.
I think its cool how they got the integrated circuit to divide by three by using flip flop applications.
hello from mississippi
Hi! I love science so much. I always look forward to this video.
I love the lives! They are so fun!
I love this live, I learned so much.
HELLOO FROM VIRGINIA
Am ready for Texas!
Hello from Texas
I love science live.
I love learning new things from science live!
hello from texas
These lives are always so informative.
“Don’t let division divide us…” LOL
Science is my favorite subject!!
This video was really interesting, I really like the way that you explain things, it makes it really easy to understand. And, something so small can do something so cool!
greetings from new york
The stereo is what surprised me, I never thought that people back then only had mono audio.
How have the IC counters impacted technology? More specifically, how has modern electronics, like clocks, calculators and cell phones, been influenced by IC counters? Fore example, do they process and handle information a certain way for the devices? For that matter, is this why we can easily do certain tasks on them, like checking the time or calculating equations?
I really think Dr. Billings should write an autobiography. Science is cool, but sometimes hearing someone’s life story and how they became who they are is just as inspiring.
From Kentucky
Hello from Georgia!
My favorite part was the cowboy part! I learned so much from this! It was very entertaining! Hello from Alabama!
Wow! A cure for cancer would be amazing!
I love science live! I always learn something new.
G’day from Wa.
Hi from Montana
Hello from Maine. These videos make me more interested in learning.
I love science live!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
hi from texas
Awsome science live its so cool that the rocket was launched.
Hello from Rhode Island!
How did you learn about all of these things? It’s interesting new bacteria is always being found. There is so much to learn every time I watch!
This science live was amazing!
I love science live
Omg I still cant stop laughing at the cowboy scene that is so funny and helpful
what else can gallium be used for? Can it help the environment
Love science live!
I have starlink.
I enjoyed this session
I love this live for my birthday!!
I love science
Can you please make it so we can say more stuff to our classmates through the comments such as hello?
hi from Arizona! i look forward to watching these every week! they’re so informative and fun! ^^
I love science live! It’s so interesting!
The cowboy scene was amazing
Hi from Gerogia! Thanks so much for this! It’s always so fun!
My favorite thing to watch on Wed. night. Thank you for this opportunity
I learned so much about this science live, can’t wait for the next one.
this was a very good video and i learned a lot.
This was awesome! I love science live!
What does water molecules mean?
love tuning in to these lives after practice! makes me feel so refreshed 🙂
hello from ID!
this is so fun to watch
That was a great episode, the cowboy part especially!
Hi from texas!
Science live made scientific things so much more interesting to me, it’s so cool!
science is amazing, also hi from Indiana.
Hi everyone this video was so cool 😎
Very informative! I thoroughly enjoyed tonight’s Science Live! Thank you for providing these weekly!
I’m amazed with them asking each other to divide with the Cowboy sense, it was wonderful!
I loved this science live! It teaches me so much!
I liked learning about the calculators, but in the beginning you said something about a new invention that attacks cancer cells. Can we learn more about that?
Great science live today enjoyed learning new things, and here from montana
Hi from Illinois!
Hi from Texas.
Hello from Xavier
hello from Wisconsin. Here’s to another great informative science live video!
I loved it where there is the machine in the wild west where the cowboys and I love how they’re the scientist and my favorite thing is the rockets sculpture
Science is so cool
My mom’s vinyl record player sonds better than my headphones.
I was so amazed how Dr. Joshua Talk about the different steps on how to plan your graduation and goals. You can do have after high school, this is something I would definitely keep in mind
Will the alternative bacteria method replace certain types of cancer treatment? In other words, will the bacteria method be preferred over some popular treatments to handle cancer? For example, do we need to take in account some of the pros and cons of all of the above options? For that matter, will that lead to improvement in those treatments for higher effectiveness in treating cancer?
In my opinion a potential meter in real life could be a very scary thing!
i really enjoyed the cowboy scene. watched from texas!
I enjoyed learning about how gallium melts at a little warmer then room temperature like around 86 degrees Fahrenheit.
Hi from Tampa/Florida
Hey from Texas!
Hi from Tx
It is so amazing to know that there are some ideas that can finally help combat cancer. !!!!!
I always learn so much from these.
Science is awesome! Thank you for science live Acellus!
Hi! I really enjoy every single Science Live and this one just might be one of my favorites! Cannot wait until next week for the next upcoming episode!
Ruby from Texas
Bacteria is actually kinda cool!
Science live has actually taught me so many things and it’s amazing!
I appreciated how they brought up Alan Blumlein, knowing that he was an engineer we can learn more about him.
Love tuning in for Science live, thank you for putting this on!
Now I know what resistors are in the electric circuit.
I liked learning about sound and the early developments of audio in the first part of this live!
Checking in from Oregon!
Hi from Florida!
Hi from Kentucky!
Science live always make me so curious about new things
Love these, so educational!
the cowboy scene was cool to be honest!!!
I really enjoy watching the science live videos it’s really nice taking the time out of my day to focus on just genuine learning!