Binary Decade Counter
February 18, 2026 • EPISODE 298
How do integrated circuits actually work? In this episode of Science LIVE with Roger Billings, explore the fundamentals of integrated circuits with a closer look at a binary decade counter and how it processes and counts electrical signals.
Learn more about the Acellus Robot Dance Contest and Acellus World, coming to Kansas City in May 2026! And get ready to discover fascinating science in the natural world—from hydrophobic spiders that repel water to the surprising fact that rainbows include invisible colors beyond what our eyes can see.
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 »
hello from Oregon!
Good show
awsome video learned alot!!!
I really enjoyed the video the protégés made. I thought it was really funny and I learned a lot. Thank you for all you have done for us.
sup y’all from montana
This is MikiYAH and this was super kool lol
This live was very awesome. I love how interesting and informational it is while also teaching in creative ways
That was so interesting! I thought learning about the circuits were cool, and I also thought that robot was funny.
This Science Live was so fun! I really liked the AcD2 robot song that was made.
Science Live is cool!
My world geography class was one of my favorites, Mr. Todd is an awesome teacher!
Great live this week! Iv’e never seen metal float before 🙂
Loved the robot!
A Binary Decade Counter is a digital circuit that counts from 0 to 9 in binary form before resetting back to 0. It is also called a mod-10 counter because it has ten states (0000 to 1001). After reaching 1001 (which represents 9 in decimal), the counter resets to 0000 and starts counting again.
Hi I am from Brazil and I liked the part of the spider and when the robot dancing
I enjoyed Science Live tonight. Watched from Parksley, Virginia.
Tell the proteges to be careful around R- 51’s weird inventions 😁! Great Science Live, thank you!
I liked learning about integrated circuits and how they work. The video was also great.
Astronomy is the coolest subject ever, atleast in my opinion.
Love my new homeschool Acellus and these lives are very interesting.
I like r 51
hi from texas!
hi from texas
Area 51 is fun and thank you for Science Live.
hi Dr.b . I like today’s show . Thank you 🙂
I thought the 3d robot was cool when it was dancing and singing at the same time.
This live tonight was cool.
I love these science videos!
I’m a new student and I found the live stream wonderful and super informative.
I loved todays episode!!!
This is such a great video
I always love seeing the little guy dance.
Now we know why we shouldn’t throw the football around inside:)
I enjoyed everything especially segment on Sir Isaac Newton and prisms.
this is super cool thanks!
hi from texas
Very educational. Loved this!
I really love to learn about circuit and how they work. Aera 51 is so funny that i laugh so hard. I really love to learn about robots. Thank you so much Acellus for teaching me new stuff.
I think the social emotional class is very important and definitely should be taught in schools, public and homeschool.
Another great live! my grandfather uses a thermal imaging camera for his business so that was nice to recognize that portion of the show. Also that spider is now my new favorite other than the jumping spider im trying to purchase!
that information about the spiders is cool!
My personal favorite from today was R-51!
I never knew metal could float to be honest that was fascinating to learn
I love science live
Hellofrom Texas
Love Acellus
Dr. John always kills it in his technology spotlight you can always learn something new from it thank you Dr. John for allowing people to learn new stuff.
hi from Missouri!
Hello from Missouri. How close are the fires to the school?!
i learned that scientist made things super hydrophobic with lasers
When will scientists create a new spider type where, it can be on land and be in the water?
Well…. I don’t really think science can make a spider that can do that it would have to be a robot since they cant preform a living spider. Unless they got dna from a land spider and water spider.
this video was very informational thank you
i thought that the thing about the spider was cool that type of spider eats small fish
hi from mt
hello from ohio!!
Love these!
hey from Alabama
It’s so cool learning about the 555! The different parts to a computer chips are so interesting to learn about!
Hi from Mississippi
I love science live
Roger Billings, known as Dr. B, is an educator and inventor who created the Acellus platform and works with the international Academy of Science to inspire students to love science and succeed through education.
hi from texas
my great uncle use to work on computers for the airforce
that’s so cool that they made a train book because how many buttons
Woah! So neat. I always love watching Science Live. Thanks!
Hi from Texas
Hello from Montana!
Amazing thanks you guys for doing so much!
AMAZING 🙂
Hey from Texas!
It’s cool that you can make metal hydrophobic.
(:
I loved watching science live this week!
I think that the circuit was cool
I hope that drink makes the produjes really smart
Great episode as always!!
Could you put a robot car in the shop please.
I love the videos!!
That is so cool that colors have different temperatures
Pajet Monet’s story was absolutely beautiful!
This week’s episode was amazing! My favorite part was about the spider that lived under water, it’s so cool how it makes that big air bubble so it can breathe under water.
Science Live was so fun.
Interesting stuff. Thanks.
The next episode really should be more about the 555! This was a great episode overall and the next episode will be amazing!
Science live is the best!
dr Billings have you ever done an episode of plant biology? If you have what is the number episode and if not, could you maybe make one? Thank you so much for the amazing curriculum you created.#iloveacellus
I now want to try and make my own clock with this circuit
i love science live
I love the fish joke!
How many wires did they use to make the circuit?
I enjoyed watching this
loved hearing about the hydro spiders, and seeing the robot dance.
hey from Illinois 🙂
Wooooow…. Cooooool :3
I enjoyed watching the big ACD2 Robot. I enjoyed the robot dancing and the song.
dang that was wild lol. I’m a 555 too lol
Thank you for expanding our minds with science!
hi from sc
I love Wednesdays!
Seeing metal float is cool
Metal floating is so cool!
I didn’t know the two 7s had jobs that can do a lot of stuff.
It is amazing that you can make metal float on water.
I learned that the sun’s rays have different colors and some of them are hotter than the others. 😊
Different colors have different wave lengths.
There are spiders that live in the water.
This live was cool.
Hi from MO
Woah this video was awesome this week!
Comment i love the robot dancing soo funny *
Hi from Missouri
This was very interesting!!
Wow! i love science live
I liked learning about circuits with the proteges.
r-51 should make more teacher serum
The hydrophobic metal is awesome. It would be cool to make all boats out of that. Infrared light is really cool and how it goes straight through the bag. The AI song was interesting.
In todays science live Dr. Roger billings talked about how the social emotional course was made . R.51 took the robot in area 51 and taught him how to dance
I love R.51
Dr. Roger billings said to send him a video of the robot dancing to a song.
Thanks for featuring the Proteges and finding out that there will be a new inventioneer named Claudia is very exciting !
Hi from Texas
I had learned about Water Spiders. Super hydrophone. William Herschel. The Flip Flop Circuit. I enjoyed it. Thanks!
here from nc
Number 1# r51 fan
I’m looking forward to entering the robot dance contest
I’m like school
Great live can’t wait to watch next week!!!!
Hi from Ohio
Hi from Cape Cod! I really enjoyed watching the dancing robot 🙂
I can’t believe that a spider evolved to make a bubble so it can live underwater!!! It is crazy that one spider inspired many scientists to make metal NOT SINK!!
I didn’t know different colors had different temperatures from red as the hottest to violet as the coldest colors we can see and infa red light is the hottest color we know!!! If infa red light is the hottest color then is ultra violet light the coldest color?!
The acd2 song was surprisingly good and funny!
Thank you for sharing this information.
I had learned about Water Spiders. Isaac Newton and colors. Robots. I enjoyed it! Thanks!
the prodiges are so funny! I hope you guys do NOT throw that football at the circuit again!!!
I liked the song and watching the robot dance.
hello! I loved the live, cant wait for the next one!
I love R51
Loved this live!
I love AC-D2 🙂
I wonder what inventions might come out of that floating technology!
What was the first computer, and how did it differ from modern, widespread computer.
Really enjoyed learning about the infared lighting!
Is it possible for a genetically modified human to be hydrophobic? If it is possible, would the microscopic holes that make it possible to be hydrophobic damage your body in a critical or fatal way?
Loved this! very informational
it was about that metal can float even if they have holes in it.
Thanks for the live!
This is so interesting !! I love these lives
Thank you! Cool stream!
I agree that all schools should offer Social Emotional as a class!
One thing I liked in todays video was learning about a water spider and how it can breath under the water. I also liked learning about a binary counter and how it works in todays world.
I love watching the proteges videos they are so funny.
I like the fact that there are different circuits with the same prices but different outputs its crazy. I never thought that everyday we don’t see the different componets in a circuit
I can’t wait to watch his again next week! I love David and Caleb! I’m a 555 girl and I’m very socinal lol
Hello from NY!
This was so fun to watch❤️❤️❤️❤️
555 for sure!
R51s thing actually worked but kinda sad how the cardboard Pajet Monet wasn’t there.
If you put microscopic holes on a ship to make some part of it hydrophobic, would that help prevent accidents (namely, sinking due to a breach or something), and if so, what part of the ship would need to be hydrophobic?
why is the live not working for me?
Could Calab and David start an Inventioneering course for the students?
Is really cool how the metal can float in the water. What if they use the metal to make a boat with it now that it can float?
Can’t wait for Caleb and David!!!
What are water spider? How can water bounce off the surface? Do sunlight have multiple colors? Can he use sunlight to turn up heat? What is a capacitor?
I like the video and talking about the 555 and the flipflop an showing ac-d2 new song i love making comment have a good night .
these videos are always so interesting
Enjoyed the live tonight. Very interesting.
this was awesome!! I loved it so much!!
Loved today’s live circuits make more sense now
If infrared light is warmer on a thermometer, is ultraviolet cooler?
So cool these videos are awesome!!!
Hi I am from Tennessee love the science videos
I love Science Live.
Can’t wait for ACD2
The science live is so cool.
The intergram circuit is off and and create a electricity.
Dr Billings Robot is super cool and funny to see dance around
hi from florida
Wow so cool I love your videos
Thank you Acellus! Just applied for graduation
I know that the light is made out of 7 colors. The protoeges are sooooo dramatic. I know the 7 grams.
what is a water spiders web made of?
Thank you for this live!!! Hello from ct
Loved the lesson thank you!