Disney's movie Ice Princess mistake?

AI Thread Summary
The discussion critiques a line from Disney's "Ice Princess" where a character incorrectly states that tucking in arms increases moment of inertia, which would actually decrease it and cause faster spinning due to conservation of angular momentum. Participants agree that the script's wording is scientifically inaccurate, potentially misleading young viewers about physics concepts. Some suggest that the choice to use "increase" was likely an aesthetic decision to sound more positive. The conversation highlights concerns about the impact of such inaccuracies on children's understanding of science. Overall, the film's portrayal of physics is seen as a significant error.
tonks
Messages
2
Reaction score
0
Disney's movie "Ice Princess" mistake?

so I watched the movie over the summer...
here's word for word out of the script

"Now, l'm going to increase
the centripetal force
by tucking in my arms.
This will increase
my moment of inertia,
so l will spin...faster."

so it's been bugging the hell out of me...if she pulled her arms in, wouldn't that decrease her moment of inertia to make her spin faster...to conserve angular momentum?

thanks.
 
Physics news on Phys.org
Yep, the script is wrong.
 
that's depressing then...Disney is going to mess up all those poor kids who actually listened to the physics in the movie
 
I think it was an aesthetic choice, not a mistake, because "increase" sounds more positive and because I could not imagine someone who had heard of moment of inertia getting the concept so exactly wrong.
 
haha that is funny
 

Thread 'Why can't Solar panels be hemispherical, or a curved strip type?'

comparing a flat solar panel of area 2π r² and a hemisphere of the same area, the hemispherical solar panel would only occupy the area π r² of while the flat panel would occupy an entire 2π r² of land. wouldn't the hemispherical version have the same area of panel exposed to the sun, occupy less land space and can therefore increase the number of panels one land can have fitted? this would increase the power output proportionally as well. when I searched it up I wasn't satisfied with...
View full post »

Similar threads

Intersteller: Lecture by Kip Thorne
Replies
1
Views
2K
What's the source of increase in rotational energy of carousel?
Replies
9
Views
2K
Simple Ice Skater with Conservation of Angular Momentum
Replies
4
Views
2K
The conservation of angular momentum
Replies
9
Views
5K
Do Movies Misrepresent Science as Fact?
2
Replies
80
Views
26K
Conservation of angular momentum
Replies
13
Views
3K
Rotational kinetic energy of ice skater
Replies
6
Views
3K
Moment of inertia ice skater problem
Replies
20
Views
12K
Is energy conserved in this case?
Replies
1
Views
3K
Torque and Moment of Inertia of a Lever Arm
Replies
2
Views
3K

Hot Threads

Recent Insights

Back
Top