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 like they made a big robot of the small one.
I’ve seen infrared photography and it was really cool.
I like the blue robot dance and song
You could make medical stuff waterproof with this.
Science Live is so cool!
the small spider is awsome
Science is my favorite.
Great informative video. I found the prism experiment and the binary decade counter demo intrestung because it really showed science.
Very interesting, I enjoyed!!
I. Liked hearing about the bigger robot that they will showcase at Acellus World this year. That sounds really cool.
The water spiders are so cool and cute
I think I like water spiders more than jumping spiders.
I loved the water spider
The water spider is so cool!
It was so cool how the robot danced
watching from Illinois
I LOVE SCIENCE LIVE!
Spiders are pretty scary but there so pretty,and I find it so unique what water spiders do to protect there baby’s!
Hi from SA
this is so interesting, I like it! I like the spider one the most
Science Live is amazing
I liked so much this live talking about binary decade counter
This is my first science live and I thought it was awesome, especially the part about the hydrophobic spider.
I love spider part is really interest for me
My favorite part was how the spider created a bubble to protect the babies.
How was the red infrared laser always the hottest laser?
Very useful and amazing video!
How does the counter detect the binary value 1010 to trigger a reset?
The robot is so cute. I wish I had onel
Me too lol 😬
Science fairs can be neat to go to because you can see a lot of new ideas. That’s cool how used the spectrum and it relates to the rainbow.
I love how the mother spider makes the bubble to protect her kids!
I want to make my own water spider
It’s super cool to see a water spider in action! Great video
I love science live they are my favorite part of the day
I loved the water spider it was so cool and fun to see.
What is the Binary Decade Counter made to do?
Can you make other metals hydrophobic exept aluminun
The water spider was so cool in this video.
The robot dance was so fun! Learned so much . Always look forward to watching the science live!
I loved the water spider it was so cool.
I really enjoyed Science Live this week! I didn’t know that there are “aquatic” spiders! You really do learn something new everyday. 🙂
Can a binary decade counter help keep track of time?
The Protégés are the best!!!
even though i hate bugs, i like the water spider.
I love the part about the wave lengths of light!
I loved acd2 song and dance I also dance! From Ark.
It’s so cool that a water spider can make a bubble of air to bring to it’s home.
I think you should put a bigger size of ACD2in the Acellus store.
Maybe liferafts could use that hydrophobic aluminum.
hello from Louisiana
I love water spiders
I think checking to see if an object floats or sinks is so cool!
I love spiders
I think I like water spiders more than jumping spiders!!!
I didn’t know water spiders were real!!!
i love this so much
What happens if a binary counter is modified to be a decade counter?
pretty neat spider!!!
water spider are so cool!!!
I wonder how many water spiders exist.
I really like the water spider
i like the flip flop part
You mentioned taking energy from crashing waves, and how we must spend energy to get energy. Is the amount of energy we are getting from this significant, and how will this energy be used.
how does binary decade counter work
love these lessons 😀
The water spider looks so cool
From Chicago
That’s really cool Kelsey! Hi from OR!
I thought that water spiders could breathe underwater its so cool that they bring bubbles down
I always wanted to be able to have a little bubble so I can breathe underwater but I did not know there was a spider out there that did it.
it is very cool how they made the metal float like that
If I saw that water spider in real life, I would never swim again. Also, hi Acellus!
The way that infrared in extremely fascinating. Thank you Dr. Pajet Monet for doing the SEL course.
The robot dancing was cool!!!
The water spider is very cool
I really like this video. It was amazing. Also, next time that y’all make one can y’all bring the robot? He’s so cool
It’s so cool that the spider can make a bubble that into her home!
water spiders are so fascinating
That spider is really cool
WOW! That’s amazing how the sunlight is color and how color can be different can be temperatures.
I like the robot and like its song.
Acellus is great!
B-17G, search it up, perfect bomber
Watching from Ga!
Love the flashback of Dr. Pajet Monet!
Spiders are pretty scary but the water spider is so interesting!
its cool that spiders can do that!
its cool when a spider made that house
Today’s episode was very informative with Tobias telling about Issac Newton and his discovery on the ligth shining through the prism and the temperature increasing on the different colors. Also, the binary decade counter when the proteiges knocked it over and had to rebuid it. Thank you science live for this episode today.
I found this part about Isac Newton so interesting. It really makes you think about things and how they were discovered.
Science live is so interesting and funny.
Theres energy in the ocean? I didn’t know that. 😮
How many colors can we not see?
It’s cool that the water spider uses a bubble to live underwater.
Wow. That dancing robot was so cool!
It’s crazy how much Science has improved each year and how more we are going to find out in the future .
I love the spider part
ACD2 dancing was my favorite part of this weeks science live.Kelsey is an extraordinary girl, and I agree with her that acellus helps students manage and balance time wisely.
This was a great episode.
The spider is so cool!
The water spider was really cool that it can survive underwater! Here’s to Kelsey! Congrats!
Water spiders seem cool!
I like the spider
Spiders are scary but that water spider is really cool.
thank you, i love this videos, congrats to kelsey, have a nice week!!
I wish I could see a water spider in person.
interesting I love the science live.
I don’t really like any kind of spider, but I think that water spider is very unique and interesting.
That water spider was really cool!!
it’s all so cool the spider can do that the bubble in to a home
The robot thing was cool
I think your videos are inspiring and great.
Hey everybody! Awesome science live.
Even though I’m scared of spiders I thought the water spider was amazing
The water spider was awsome
the spider is so cool
I really enjoyed this science live episode.
<3 AC-D2
Some soils are also hydrophobic due to waxy coatings on the surface of the soil particle. Dr. John’s segment was highly informative.
I always enjoy these videos!
I loved it today great live guys! Love the episodes!
The spider was scary but also cool.
water spiders are awesome
underwater spiders sound scary
Wish I could go to the science fair! Great video!
I love David and Caleb, they’re awesome!
Why do we use only ones and zeros for binary numbers?
Always thought water spiders were cool. Kind of interesting how some creatures have a water variant.
I enjoy this episode with water spider it seem so cool
water spiders look so cool!
are the little spiders we see on the water are thay those the one on the water
I have been learning about colors and their heat in Physics.
thank you for the science Life today I liked it it was fun
AC-D2 is awesome!!
it’s really cool that the spiders can stay under water without gills
Who made the seven segment display?
I find it cool that i got to see what a water spider looks like and that it spends most of its time underwater.
Water spider is so cool I love science live!
That robot is soo cute.
Super fun lesson can’t wait for more
I really liked this episode!
I liked learning about the water spider. I didn’t know about them before this.
I like the little song and dance!! Thank you for a great episode of Science Live!
Spiders in general are cool.
The spider is really cool.
The water spider was really cool.
The robot has some great moves!
It was interesting learning about the color infrared and how it is the hottest color.
This was really cool. Can’t wait for next week!
I love this and the water spiders were awsome I can’t wait for next week
It’s crazy that a spider lives its life underwater and it can also make bubbles to breathe.
This was great science live, maybe even my favorite one.
Water spiders are so fascinating!
It is pretty cool that the metal would not sink even though it was damaged
i love learning about science in these videos
yet another interesting episode. hello from PA
The water spiders were really interesting
I learned about a water spider today!
It was cool learning about the 7 segment display and how that works.
I never heard of water spiders. I like to learn about new things!
Weather’s as fickle as always down here in Southeast Kansas. Feels nice to sit in front of the fire while watching these!
Cool water spider.
That water spider looks so cool and how it blows bubbles!
Thank you for the fantastic show I loved learning about the robot
I liked learning about the water spider.
Happy Mardi Gras, I love science live so much!!
an under water spider lowkey freaks me out but it really is pretty cool
Glad to be a part of this school! I appreciate being able to watch these at any time.
It’s interesting how someone thought that colors in prisms have different temperatures.
Amazing! Not a huge fan of spiders, though…
I can’t wait to learn more from these videos!
It’s so cool that the spider can make a bubble that into her home
Science is so cool
It’s so cool that the spider can make a bubble into her home
Water spider is so cool
I thoroughly enjoyed this Science Live episode.
i like the song and dance acd2
Happy Mardi Gras Ya’ll from the south!
I’m scared of spiders but this looks cool!
The underwater spider seems like a very interesting creature. It’s kind of like the hydrophobic sand you can buy, just covering an entire arachnid.
A giant ACD2 would be so cool!!
Water spiders seem so cool!
Wowww! Kelsey is amazing! Publishing a book at 11 years old, AND animating her own film based on it! Wow.
I love spiders! Science live is awesome. 🙂