Dr. Roger Billings

According to his mentor Bill Lear, Roger Billings sees tomorrow better than most. Among his many notable innovations are some exceptional firsts: Billings began his remarkable career when, as a senior in high school, he invented the first hydrogen car. He went on to convert the first bus, tractor, and an entire home to run on hydrogen. Later, to make hydrogen more economically viable as a fuel alternative, he created the highly efficient fuel cell car. This groundbreaking technology has paved the way for the fuel cell vehicle industry that is rapidly emerging today.

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538 Comments on "Expanding Metal"

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Yiming
Yiming

I never knew metals can expand as temperature rises! Thank you Dr. Roger Billings for this info!

Marcelo
Marcelo

wow thats amazing i wonder why it does that?

spiderboy
spiderboy

WOW! thats amazing! sooo cool mr billings thanks! also thanks for 20 likes!

Caitlyn W
Caitlyn W

If planes expand and get longer when heated in air going super fast, why doesnt the plane keep that shape when it lands?

Jazzy
Jazzy

Wow!! i didn’t know that metel expands that much :0 like if you agree

deon
deon

how does that work

Vivian
Vivian

wow that is so cool!!!!!

geo703123
geo703123

i wonder if it gets smaller if you freeze it? cool Dr. Billings

Tyce
Tyce

Wow
(Like if you agree)

Dylan.G
Dylan.G

That’s really cool you have great a great mind Dr.Billings

yusuf
yusuf

nice experiment. thank you Dr. Roger

Joseph
Joseph

I think that happens because as the temperature rises the molecules speed up and spread out so that the ball expands.

lilyana
lilyana

This is really cool.

terrie
terrie

That is so cool i had no idea it could do that at all. 🙂

Evan :/
Evan :/

thats cool

Jacob♾
Jacob♾

Wow ♨️

Aislinn:3
Aislinn:3

COOOOOOL

Addisyn
Addisyn

That’s so cool, I didn’t know metal expanded due to rising temperature!

Sara
Sara

That’s so cool! It’s like a work of magic! This is great! I think I’m gonna try that some day!

⁀•⩊⁀•
⁀•⩊⁀•

So when its cold, the metal gets smaller?

Brent
Brent

how does the metal expand

Emmett
Emmett

Temperatures expand or shrink all the time. The Effiel Tower is always expanding and shrinking sometimes by 6 inches in all

lilly :)
lilly :)

That’s interesting Mr. Billings!

lane
lane

I never knew that!

Anton
Anton

This is cool!

Dominique
Dominique

This is s interesting! Learning new stuff every day!!

Katherine
Katherine

this was very interesting and fun to watch

Nathan F
Nathan F

Wow! I have only heard of metal melting. I didn’t know could expand. Cool!

kms geo
kms geo

wow

Ryan
Ryan

Very cool. These videos are a bit more engaging.

Ericson
Ericson

wow that’s very cool

izzy
izzy

wow that was so cool! I didn’t know that could happen.

NARATO
NARATO

THATS COOL

Andrew
Andrew

wow! that’s cool

Corbin
Corbin

that is awesome!!

Strummer
Strummer

cool Roger that is a good fact. I lerned that metal expands. my favorite part was when it did not fit, THANK YOU.

nico
nico

it was good. I liked it.

Dylan.G
Dylan.G

Gold may be a metal but a magnet doesn’t attract to it

Dylan
Dylan

This is so cool!

Connor
Connor

Wow! I had no idea metal did that. Why does that happen when it gets heated up like that?

Skye
Skye

This is so cool

Speedy
Speedy

What about spaceships? Isn’t the atmosphere super hot? Why does the rocket not get so much larger? Does it?

Abigail
Abigail

Thanks so much for the cool science experiment.

Myra
Myra

Very interesting especially about airplanes expanding while in the air. I will think about this the next time I fly.

Cyan
Cyan

awesome!

Jovie!!
Jovie!!

Wow! I never actually thought of that. Very interesting! Thanks Mr. Roger

breanna b
breanna b

wow that’s so cool!

Stanislav
Stanislav

thank you for this info

Luna
Luna

That is very intresting.

Ruthie
Ruthie

Wow thats so cool