Transistors
January 21, 2026 • EPISODE 294
What is a transistor and why is it important? In this episode of Science LIVE, Dr. Roger Billings explores how transistors control electric current, replaced bulky vacuum tubes, and made modern electronics possible—from radios to computers and smartphones. The episode also features a tiny bug-like robot developed by MIT and the fascinating story of Henry Ford and how Thomas Edison influenced the development of the automobile.
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 »
Wow, this is super cool!
i love it all
Did not know the fact about why it was called the Model T. Very interesting!
I love science live! It’s so entertaining!
Why is it called a car?
How much does the Ford Model T weigh?
My grandmother worked on the assembly line for Volvo when she was younger!
I loved the robots I used to even watch movies of them also like the flying one.
Hiiiiii 😀
The assembly line is so fascinating
Hi from Oklahoma
Amazing!
good afternoon
Didn’t they start using conveyor belts?
live
I love these videos
Hello from Katy Texas!
Hi I’m from Louisiana
I like this car, I want the car for me .
Agostino
Hello!
It’s crazy to imagine a car being built in 90 minutes
Hello From NYT. those old automobiles are really cool.
How did the invention of a car domino effect other inventions?
Science Live is awesome
how fast did it go?
hi from Georgia!
It would be cool to see the process of the model T being built.
i love learning about science.
Henry’s determination to keep trying is inspiring.
watchinng from wi!! loveee acellus
I loved the flying robot u guys are really good
cars are so intricate
How did he have the financials for the project if he quit his job?
hello from Texas!!!!!!!!!!!!!!!!!!!!!!!!
Hi!
Seeing things other people have invented is so inspiring and I would love to do something like that one day. ❤️
How did they make the first tire?
It’s cool to hear about how things that we deal with daily began and how it progressed from where it began to what it is now.
Wow! I love how i learn a little bit more when i watch your lives.
I love science lives!
Comment* Hii from New Mexico 😋
i love this live so much
That’s real neat
I love science!
Henry Ford made the assembly line.
How many original fords were made?
hi, im so excited for tonights science live!
cool
how was the horseless carriage invented? what was the idea?
I didn’t realize that it was possible to make a fly. I wonder what the code inside military drones looks like.
Hi
Was the model T the best car of that time?
How many science legends did Mr. Billings meet? (not including himself LOL)
I think it was very risky that henry ford quit his job to design cars but it all payed off in the end .
Good evening everyone!
I love these science lives I look forward to them
How was fuel made in the 20’s
Woooooow, this is so cool!!! i love it
Hi
hello from Texas!!!!
What was the name of the first ever horseless carriage?
How a few words of encouragement can really change a person’s life for the better!
hi from Texas! Can’t wait to learn today!
Robots are cool will they be more advanced in the future?
Robots are so fascinating!! I love learning about science.
Nice!
Love science!
How long did Henry Ford work on the first car?
hello from texas
Watching from Indiana
How come the wings on the flying robot didn’t break when the falling object hit the wings?
Did he not have enough money to make the first car affordable?
hiiii from ILM
Imagine being complimented by Thomas Edison
I love science live!!!
Edison was so cool!! I’m so glad to learn about him more
Love science lives
hello
the robot was really cool
hi from ny
Those robots are so interesstingg.
This is so incredibly interesting, its a very inspiring story
That robot was so cool!
this is really cool, i love science! and i love learning about how things are made because its really cool how people take those things and makes even better and better versions of it
the flying robot is so cool
How did Edison know that the model would be so successful?
And at that moment, history was made!
That’s so interesting
I never knew that Edison Inspired Henry Ford!
nicee
hello from NJ
So so so cool
hello from oklahoma
hiii
This is so interesting
Hello from Texas!
Hope everyone is having a great day
How did the drone flip so fast?
hi
Hello From SC!!
Thanks Tobias!
hi from Norco CA
I love the hair
Wow I never knew Thomas Edison and Henry ford worked together that is so cool !
wow 🤩 this is so interesting and cool!
so cool!
That’s interesting
Cool stuff Henry Ford the most reliable car ever perfectly cool 👌🤌
hello from nd!!! I’m so happy to be here for this weeks live! !!!
how do I do that
thats cool
Would have been so neat to meet Ford and Edison.
flying robot is cool what is other things it can do?
Hello everyone!! Can’t wait to learn from tonights science live.
The robots were cool!
exciitedd
hi from Missouri
Everything about science is cool
Hello from Iowa
Hello from the Bay Area!
Science is amazing.
hello from Texas!
Hello from Rhode Island
when did henry invent that vehicle?
cool!
Hello from OKlahoma!!
People are so creative when it comes to building things. It’s so amazing to hear about robots and other things people made.
robots are so cool
what truly makes someone have the passion to continue a project after so much discouragement
very cool
Happy Wednesday. Robots equally fascinate and scare me.
The flying robot was so neat.
How did early electric cars run?
Hellooo!!
This is opening up a whole new world of knowledge on robots! Kinda intriguing!!!
10 flips! I wonder what else this little robot can do!
wow the flying robot was so cool? What other things can they make?
Great science live! Thank you
I was interested about how so much people can make these amazing robots and creations.
Hello from OH 🙂
Howdy from Texas! Looking forward to todays lesson.
Hi there! Julian from Dallas!
wow it’s incredible these adventures and theory’s
Hello Hello!! So excited for tonights Lesson!
so cool
Very neat!!!
I LOVEEEE ROBOTS 🤖
wooow cool!
It’s crazy to think that Ford and Edison lived at the same time!
Science is so interesting
Hello from texas
That’s really cool!
I wonder if one of the robot bees could blend in if it was in an actually bee colony.
Mylah here checking in.
i love science from texas
Hi from MS
Hey From texas
Hi from Virginia
The tiny robot it so cool! I wonder how they programmed it.
Ford worked at the Edison company ?
this is so interesting!
how do they make things like that ?
hello
Sharks are really interesting!!
I always look forward to these lives!
Hello
Hello.
Hi from VA!
How long does it take to make a robot?
How do they program it?
How do they program it to do that
hi from oklahoma
Hello. This is Ameer from California.
Its amazing how they do that
Looks pretty cool tbh
love the videos
From ATL
HELLO! I’m JACKSON FROM ILLINOIS