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 »



I think water spiders are incredible creatures. They are really smart to make bubbles underwater to breathe!
the spider was cool!
Welcome Claudia.
Water spiders are so cool!
loved this episode
Wow! I did not know that there are special spiders that live under water! And the “Binary Decade Counter” was so extraordinary!
This is so cool! I didn’t know about this!
im scared of water spiders!!!!
so interesting how different temperatures of light have different colors really!
Video this is the first video since I watch since I did homeschool and I think it’s a really interesting video and it really taught me a lot of stuff. My favorite part was the spider part kind at the start.
so interesting to learn about the binary decade counter!
I didn’t know you could use a thermometer on a variety of colors this was so cool!!!
WOW I loved this video
enjoying the live from South Africa
I like learning these kinds of new things!
That floating aluminum is really cool!
Interesting can’t wait for next week
I enjoyed watching ACD2 dance!
I love learning about water spiders!
Super hydrophobic metal that doesnt sink is an awesome idea.
It is so good to know that every wednesday I have this class to watch and I heard about the new idea of spening energy to get energy!
The warer spiders is so fascinating. I think it is interesting that it can breath under warer.
Acellus is amazing!!!!!
Really interesting video!!
water spiders are so neat, The episode was really cool
It was so cool how the super hydrophobic did not sink I learned a lot today
thank you for another good science live!
I love science live
I love science live!!!!!!!!!!
Acellus is so interesting and I have learned so much!
I didn’t know about those spiders before! I did some more research on them and have found that they are called “diving bell spiders”! As someone who is really interested in spiders, this has made me happy.
Amazing video love watching these!
It’s so cool how decade counters work. I think that it’s so interesting that we still use a decade counter till this day!
These science lives are always so entertaining and fun.
I love the little robot!
if the sun is different colors why do we only see one color
Hydrophobic is when the object doesnt like water. It repels it.
Best two scientsist of all time!!!
What made you want to get so good at teaching the social emotional class? And do you make the curriculum yourself?
water spiders are truly unique and how they can live underwater
I love it ACD2 very cool
I have learn a lot about sink or float
I don’t like spiders, but water spiders are cool.
The football example was very demonstrative
I loved learning about how the infrared camera works!
Hi from Nashville Tennessee!!!
I love these videos they get better and better
Is it possible to make a hydrophobic car? If we had hydrophobic cars would we be able to use the car as a boat?
I don’t like spiders but this is cool.
I had a blast watching!
Wow I learned a lot from this! thanks acellus!!
my fav part was watching the robot dance, thanks.
Water spiders sound so cool from what I read in comments before watching
I loved this episode it was very interesting!
Thank you for taking the time and doing these every Wednesday!!
That was very cool and informative. I really enjoyed the water spider.
Infrared light can see things we cannot see.
I like the dancing part!
This video was really cool.
The water spider was so cool to see in action!
This episode was very cool.
it was so cool to see you Dr billings
The school invention is amazing!
todays episode was all over the place! (i mean that as a compliment :D)
What will happen to the spider if another bug messes with the spider’s home? Will the water spider be able to survive?
That’s kind of cool. I love how challenging science can be sometimes.
What method do water spiders use to move around in the water?
I loved this lesson so so much!
Amazing 🤩!!!
This was a fun educational video! I loved the dancing
This video was so fan and entertaining! Definitely my favorite live from them so far!!!
Flip-flop
my favorite part of the week!
science live is fun to watch
Thanks Science Live is the best!
These videos make very intelectual people.
Binary Decade Counter is so cool!
I never knew there was so much science and thought behind infa-red light!
awesome science live!!
The noise from the frequency heard my ears. and the aluminum part was very cool. I like the feeling when watching science live..
I had no idea that infrared was discovered basically on accident. It’s so interesting to see how something we use daily at this point wasn’t even discovered during that time period.
Hii, this was so cool I loved watching it!
The water spider was so cool!
Really love these vids
the water spider was interesting
i love these lessons
How come we only see a neon yellowish light if the sun is multiple colors?
I’m excited about this one.
I really enjoyed Science Live this week! Such an interesting topic! I’m looking forward to next week!
Super hydro phobia! Sounds cool for a water spider.
I like learning how different temperatures of light have different colors!
I really enjoyed the part the part about the binary code and how you could do it and i thought it was very interesting how it works
Way to go Kelsey!!!!
I loved this video
I always look forward to science live!
so bummed I missed watching this one live! LOVE Acellus!!
water spiders are cool
Can’t beat a robot dancing to the music!
Thats crazy! That was how inferred light was discovered
This video was good
Thank you! This was so cool.
Great presentation! We look forward to more interesting information.
This is so cool I love spiders!
How is a binary decade counter used in digital circuits?
Binary Decade Counter is awesome!!!
How long does the hydrophobic properties of the metal last?
I really enjoyed the Binary Decade Counter video. Water spiders and chips are awesome.
I love science live!
The water spider is so cool!
I never knew water spiders existed until now! They’re super interesting. The live was amazing!
I loved the acd2 dancing music love this and love doing this every week!
This was so cool especially about water spiders!
I loved this episode.
Found it so interesting how different temperatures of light have different colors!
This was so cool!
Great live this week! can’t wait to see what next week has in store.
I love watching science live every week thank you guys for posting this live every Wednesday
I love science lives!
I love acd2!!
gives a laugh
I thought it was cool how the super hydrophobic did not sink.
I look forward to these science lives. Thank you Acellus.
Thank you Dr. Billings! How can I participate in Acellus World if I can’t make it to Kansas City?
The spider was super cool
this is such an interesting video!
Dr. Billings once again with some really inspiring khowledge cant wait to see what’s in store for next week!!
I am thankful for Science Live. I always learn something new. Looking forward to the next.
Great live, loved it!!
I LOVE the dancing robot! I’m going to make my own dancing robot one day. I like his song too.
science lives never seems to get boring. Science is a never ending world of knowledge.
Cool topic this week!
I love watching the lives
I thought the robot was super cool
This is soooo ooooo coool!
i like the water spider.
i am very joyful from this video
I enjoyed learning how to use an integrated circuit to create a binary decade counter.
I think it’s really cool that we can make metal float like that even if we drill lots of holes in it and it is really amazing.
The spider thing was pretty cool!
David and Caleb are hilarious, glad they could join science live.
Loved the spider part!
The hydrophobic metal was cool.
I just learned about a new spider species, thank you.
I did not now that ultra-violet was a thing till now.
I LOVE ACELLUS!!!
That was a cool experiment.
The spider was cool!
I love the spider.
I thought it was cute when the little robot was dancing. I want to get 1 of those robots from the Accelus store.
Even though I have a fear of spiders, water spiders are pretty interesting to learn about! Can’t wait for the next live!
It was really cool when the binary decade counter was created with a integrated circuit.
I didn’t know Kelsey wrote a book and made an animated film for the film festival, but that’s amazing!!
Hi from Idaho!
I had no idea that there was a type of spider that lives its whole life under water!
the Hydrophobic aluminum is cool!!!!!!
Awesome, I really enjoyed this video
I didn’t even know water spiders existed! I’m always learning! I love Science LIVE so much.
MY FAVORITE BY FAR!!!
water spiders are awesome!
The video on binary decade counters was cool
I like the color of the blue robot! It reminds me of the sky and ocean. I feel like it’s how nature and robots unify.
Science live is really enjoyable and fun to watch every week !
Spiders are fascinating creatures.
i love spiders, so this episode was really fun to watch for me!! look forward to the next one
The water spider is interesting, having to use a water bubble as an air bubble to breathe when the spider isn’t underwater.
Such a awesome robot
This is the best!!
I love Acellus live
This was a super cool science live!
Wow! Watching the AC-D2 dancing to the music was so cool!
I liked learning about Binary Decade Counters in this video!
I enjoyed learning something new about infrared light.
Learning about BDC was probably my favorite part this week!
i like science live
song was honestly not bad
i loved the video and i learned so much about circuits i didn’t know!