Vacuum Tube Computing
February 4, 2026 • EPISODE 296
Join Roger Billings, a technology thought leader and innovator, as he draws from his diverse range of life experiences, inspiring students of all ages to love science and to understand the value of education in empowering their life missions.
This highly motivational and informative lecture series, hosted by the International Academy of Science, is part of the Roger Billings Mentoring Scholarship.

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 liked the Gollum impression from The Lord of the Rings
I can’t imagine computers being so big! They’re so compact now and easy to take with you.
r51 is never a waste of time
This episode was very interesting.
Always love learning new things, hello from Cali!
Wow! Can’t wait for Acellus World!!
Its really cool how far computers have come. They used to be super big and now they can be whatever size you what!
These events look so neat! I hope to go one day!
I love learning new things on science live, it always teaches me something new!
I like learning about computers
I wish I could go to these in real life!!!!
Great video topics! So hard to believe the amount of water it takes to cool a data center. Too bad space is super expensive right now but maybe the satellites will work and preserve our energy sources.
it was crazy to see how rockets are made
I love how inspiration science live is!
Love these every week!
Hi how are you and the video was good.
david was great
I liked the rocket part because it was interesting.
Hello from Wyoming! How did they make the computers smaller?
I can’t believe there starting an educational event for Acellus World this year in Kansas City! I didn’t know that.
R51 is my favorite
I Love science Live!
I love Acellus and am so happy I get to be part of science live!
Thanks for another amazing video! I can’t wait for next week!
I could never be a astronaut it is to stressful.
It is crazy how precise computers are.
It’s insane that back then they had big computers that were taller than me and now they are so much smaller that we can carry it in our hands.
I love learning new things on science lives
The computers were quite interesting.
Its crazy how the first computers were so big!
i love theses lives can’t wait for next weeks stream
i love science live!!!
I love watching these videos and learning new things.
AI is advanced
I really enjoy watching science live. Its interesting and keeps me interested!
Hi I like the science course
Thanks for the live from Oregon!
Love learning about the history of our science through these lives(:
Hello from Georgia!
I wonder how computers 50 years from now will be different than today’s computers. ???
Hi everyone from TX 🙂
These videos are the best.
Hi from Texas!
Around 5 million houses of power that’s a lot coming from just one data center insane.
This was really fascinating! Can’t wait for next week’s!
Learning about the computers is so interesting!
I loved the top gun reference.
I’m always so excited to watch science live!
These lives always teach me so much!
I really liked this episode David and Caleb were amazing.
thanks for this video it really intrigued me.
Yay! I love science live day!!
thank you for the videos to watch i really like them
It’s interesting how small computers have become.
I’m loving this.❤️❤️❤️
Cool beans!
never learned about this before but it was intresting cant wait for the next one