Inventioneering – Keystone Inventor
December 3, 2025 • EPISODE 289
Roger Billings, Keystone Inventor: The Final Architect of Innovation [Version 1]
How do some inventors create ideas that shape entire industries? Listen as Dr. Roger Billings reflects on his journey as a lifelong inventor and shows how the principles of inventioneering can be applied to make lasting impact. Discover what it takes to go beyond ideas and prototypes to become a “keystone inventor” whose work supports and shapes future innovation. Whether you’re curious about invention, engineering, or the mindset behind breakthrough thinking, this episode offers inspiring insights and practical wisdom from one of today’s leading innovators.

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 »



Frogs are so cool.
R51 is the best! I never knew mold was so interesting.
I learned about the radiation area a few years ago, it was very fascinating to see how the wildlife adapted.
I enjoyed learning about the coherer very interesting.
I’m extremely fascinated by radiation and it’s affect on DNA, I’ve been researching the dogs of Chernoble. I’d never heard of the mold though!
This is my first day use Acellus
R-51 is too funny! Cant wait till next week.
This Science Live was really interesting! Enjoyed it a lot!
The frogs turning into a different color is amazing!
The kit will be awesome. Thank you very much.
Another great Science Live! And science is like magic!
R-51 is my favorite in science live
This weeks science live was incredible!
Love R-51! Super funny! Great science live 🙂
Thank you from NJ!
Science Live is so amazing!! I love it so much, It’s one of my favorite things every week.
This week on Science Live, Dr. John talked about NASA sending mold into outer space. This week also on Science Live, Tobias talked about the very first light-emitting diode. This week lastly on Science Live, Dr. Roger Billings talked about the second step of inventioneering.
R51 is the best!! I really like watching it do stuff
I loved the experiment. I love doing them myself at home too. Science live and Acellus makes that possible.
I loved the experiment with radio waves this week!!
I enjoyed tobias’s story about LED lights
The science lives are my favorite. Science remind me a lot of magic
This week’s episode honestly felt like a cliffhanger. The main science lesson was quite engaging.
Thanks so much for teaching me how to use radio waves I might use them one day!
This week was so interesting ! I love Acellus
I really want a class on Morse code it is so interesting, and R.51 is my favorite he is so hilarious!
When I look at how long the video is I’m like “ughhh” but then as it goes a long I get sucked in and I then it’s like I need to watch the whole thing.
R51 is so funny!! I love Science Live!!
Nice Dr. Billings!!!
The color change in the frogs is crazy! Does it make them sick or have shorter life spans?
My favorite part was Dr. John on this weeks science live.
Hi, I like how Mr. Billing made the communication system.
Awesome presentation Dr. Roger Billings so fascinating.
Watching science live every Friday makes my week, Thank you Acellus for making this possible!
Science is a lot like magic.
I love watching breakthrough moments in science with Dr Tobias!
Science is magic 🙂
Science Live is so cool! All that data just from sweat is fascinating!
The Roger billing show is the best acellus is great.
R-51 is awesome!! Cant wait for the next science live episode!
i love Acellus
This is my first Science Live activity and I loved it!
The mold section shows the creative side of science.
The cohere kit sounds cool! R•51 is so funny! I love these Science LIVEs!
Pajet is a great teacher! Dr. Billings is an excellent mentor. I hope someday to go to Kansas to meet everyone!
Amazing episode!! Loved it so much. Look forward to it every week
How do clouds float in the sky if they are made of water?
I never thought of that WOW!
Water puddles evaporate from the sun’s heat. Then floats into the air as steam. This means that the water that evaporated and turned into a cloud still has drops in it. That is also how it makes rain.
Because the water has turned into a gas so it is able to float in the air.
because it turns into a gas after evaporation
How can cortisol levels be found in your sweat? What chemicals are in your sweat that can be studied to look at cortisol levels?
Dr. billings is the best!
R51, is hallarious!
LED lights are like magic!Its amazing how much they impacted and changed todays world.
Im so thankful for the opportunity to watch these cool science lives!
Enjoy watching science live every week. Science is so much fun and interesting.
I love science live cause my favorite subject is science
We L💗ve R-51!!!!!!!!!!!!!!!!!!!!
Love 💗 R51!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Science Live is the best. I can learn different things every week. Thanks Acellus.
I would love to do more science related things!
R-51 made me laugh so hard! Its hilarious! I love science live 🙂
I am excited to see Dr Billings next invention.
Why does tapping the lighter on the cup turn the LED off?
R51 is just hilarious! Keep up the great work!
Science Live is so exciting to watch! I can’t wait to watch again next week, it’s one of my favorite past times of all time. Thank you
Radio waves are So cool!!
It was very fun and interesting to learn about coherer! And also having a pet mold would be fun but might be a lot to take care of.
When astronauts go into space how do they not get affected any radiation?
R51 is always so funny!
R-51 has gotta be the best part of science live
I got a fidget spinner from your store a few days ago
I LOVE R-51
In your opinion, what’s the most fascinating invention ever created?
I really like how they talked about the radio waves and how they were made
In order to receive the signal through the meatal particles with the radio wave what would the longest distance it can be from it? Would the amount of metal particles have and impact on the distance of receiving the signal?
when I think of keystone inventors, I think of people like Thomas Edison because sure someone else built the door. But without a key inventor like Edison? The door to new light would’ve stayed locked, but because of Edison we discovered a whole new world of lighting up the dark as a way to chart the path to invent bigger and better items today such as phones and even the laptop I’m using to write this right now, would’ve never existed if it weren’t for Thomas Edison.
we only have LED lights in our house to help save on the power bill.
R51 is so hilarious! Loving the science lives like always.
I enjoy these videos they make me see the world differently, so many unique things to think about!
Dr. Billings experiment today was SUPER cool!
Good episode per usual.
I never thought that mold would be the solution to protecting us from radiation in outer space!
I think these videos are a creative and awesome way to make students feel more engaged with their school.
What invention was the most influential in the past 500 years?
I love science!
I would love to have a thing in the shop that is like a build kit and it makes the r51 logo when put together
hello from Kentucky i loved the video today
Science live is amazing as always
I really enjoyed the R51 segment!
I’d take a fish to mars
When the nuclear power plant blew up that must have been scary!
My favorite part of science live is the radio waves. They had to go through a long process, I guess scientists were curios!
I enjoyed watching the radiowave experiment in Area 51! I found it very interesting how the lighter wasn’t touching anything and it still lit up!
I love Acellus!
I want to invent something to make it easier to peal a pomegranate
Do the ultra sensitive microfluidic sweat sensors get their results from the sweat a person accumulates throughout a single day, or is the sensor most proficient when the sweat is released through exercise in large amounts?
R51 is the goat.
Love it! Thank you
I think its crazy how people can make such great inventions I wonder what things we will see in the future of technology
How did the frogs adapt to the radiation so fast, considering that Chernobyl was not too long ago?
Will a spark of static electricity also activate the light?
This was an amazing episode!!!!!
r-51 is awesome
That’s so cool how the light comes on just by the lighter!
R-51 is hilarious!!!😹
I think it’s cool how animals adapt to their surroundings.
I love R-51, I mean how could you not?
I’ll have to try the foil in cup thing. It was super cool 😀
This science live was really cool!
Hi from South Carolina✌ this was a very cool Science Live can’t wait for next weeks video!!!!
I think it’s cool that the mold could protect you and grows in space!
This episode was incredible!
R-51 was so funny!
Science is so Awesome
I love how each Science Live is unique and engaging! Each week is something different and I enjoy the different things I learn.
I enjoy that science live is both entertaining and educational.
Dr. Tobias’ story about LED was very interesting.
I never thought mold would be such an integral part of science!
Can you do it with a plastic cup?
Do you think certain keystone inventors took years to map their ideas
Love watching science live!
I loved this episode I would love it if you would put the kit in the store I would 100% buy it
Is anyone watching from Alaska or Hawaii?
Can’t wait to see Dr Billings next invention!
i love science live so much ❤️
I enjoyed this live alot!! R-51 is hilarious. I can’t wait for next weeks live! 🙂
Mold really does have a ton of impact I didn’t know about!
The explanation of the development from a Diode to Photons and onto a visible photon was informative.
It was interesting that we can use something like mold, which usually is thought of as a bad thing, for good purposes. The Coherer is pretty cool as well. Maybe we’ll get one of the kits with our gold points form the store.
I love watching science live!!!
Science Live is a fun addition to our learning!
I herd about the Chernobyl Disaster, It happed in the Ukraine SSR. Its cool that frogs in Chernobyl can change color.
I really think it’s cool that the inventor is a keystone inventor like Thomas Edison.
I want one of those kit things. Thanks for demonstrating!
science live is so cool
I would have never thought mold was able to keep radiation at bay.
I find science so cool, there’s so much reasoning behind everything that happens.
I was cracking up at the suggestion of mold as a pet! It was cool to learn about how the mold grows better in radiation! Muy Interesante
I’m really loving all these episodes! I can’t wait for next week!
Science live is great thanks for everything y’all do!
i didnt really think about how much stuff goes into making stuff
Watching from Colorado!
Science live is awesome! love to learn new things.
I love learning about radio waves. I enjoy the science videos
Has any other wildlife in that radiation zone shown a unique change like the frogs have ?
who would of thought a radio wave started with a little spark!!!
Science is magic!
This was hilarious I love it I don’t know about having a mold pet though lol
I wonder if Elon Musk can be called a keystone inventor, or if he just hires other really good keystone inventors.
Science live is the best!
The kit would be so awesome.
Hello, today was a good day to watch SCIENCE LIVE! This is the best online science class have watched. The episodes showing of morse code leading up to teaching us of future technology with radio waves is astonishing!
I like the invention of the coherer because I like how even that we have a gap in the middle, we can still have the light shine just with aluminum foil and a spark.
I think Miss Monet looks very pretty in that shiny blue shirt!
This week’s episode honestly felt like a cliffhanger. The main science lesson was quite engaging.
How expensive was it to create the first LED? I remember watching a video about why the blue LED was so difficult to make and I thought it was pretty cool!
this was an interesting episode, and I loved R-5 it was so funny!! Science love rules!!! Hello from Idaho
Science live is so cool! I liked when Dr. Tobias mentioned the LED, and you’ve got to love R-51!
The radio wave discussion/experiment was interesting. Breakthrough science is the wave of the future.
Wow!! this was such a fun episode
I love watching r51 and i can’t wait to see the new kit!!!!!!!!!!!
If scientists made mold radioactive would it make itself grow?
i just love science live!
Science Live is great!
Science live for the win!
I never thought about it before but our tv just turns on when we point the romote at it and click the on button
Breakthrough moments in science is my favorite part of Science LIVE.
Inventions are always so cool!!
I think it’s really cool how a empty lighter can turn on a light.
science live is the BEST!!!!!
The radio waves from the lighter is so cool! I never knew that you could do that.
How is sweating good for our health?
This science live was very informational and fun, I found all of the content to be intriguing.
The frog changing colors was neat ,we are learning about frogs in science this week.
I loved learning about the experiment that Dr. Billings showed us today!
I enjoyed the experiments and learned about science
I loved learning about crystals!
R-51 is so funny i cant help but laugh whenever he has his screen time
I can’t wait to get a kit from the Acellus store!
This was a very informational and fun science live, I found all of the content to be very intriguing.
Its so cool that the frogs can withstand the radiation.
I enjoy Tobias and his knowledge
What was the inspiration behind acellus?
So we might be able to replace certain blood tests with sweat analyzing? That’s cool! It should definitely make things a bit easier!
Can you tell in the next science live about gravity?
I wonder if the sweat studies would help people with hyperhydrosis, like my mom. Also, Chernobyl is very interesting and I’ve seen some great documentaries and movies on what happened and how it affected the surrounding areas.
The Coherer is extremely fascinating.
I love to watch science live in fact I’m going to join the inventneering club
Wow! I love Science Live thank you so much all!
Science Live is really fun to watch, I’m excited for the next live!
I think the acellus store is awesome
I’ve definitely heard of Chia pets… but mold pets?? Wow.
This science live was very interesting and informational for me, all of the content was good.
Thank you Dr Billings, I’m so excited to learn more new things
I loved this science video today and I love getting to learn new things from Acellus!
I love Acellus!
Science Live is great!
Monitoring sweat should be available as they already can do sweat tests to check for specific diseases
When you said, “Sharpen your pencils and start figuring things out”, and you spoke about the radio wave stuff, my first thought was dark matter. Now, could math be used to “solve” dark matter?
I loved watching Dr. Billings show us his experiment with radiowaves using the tin foil and the light bulbs.
That was so awsome, I love science live.
Great episode of Science Live! I’m definitely looking forward to the next one!
Science can sometimes seem like magic!
Science is very interesting.
That fact about the mold sounds so weird and fascinating.
I really like to watch the Science lives I think they’re fun! Plus I learn something new every time I watch it !