Experimenting with CD: Making Bubbles with Physics

  • Thread starter Thread starter Oomph!
  • Start date Start date
  • Tags Tags
    Experiment
AI Thread Summary
The discussion centers on an experiment involving making bubbles using a heated CD. The process relies on applying force through blowing, which is enhanced when the CD is heated, allowing the plastic to melt and deform into a bubble. The molecular physics behind this involves the properties of the plastic as it transitions from solid to liquid and then forms a bubble. Participants compare this to the familiar method of blowing soap bubbles with a loop. Overall, the experiment illustrates the principles of heat and pressure in creating bubbles from a solid material.
Oomph!
Messages
55
Reaction score
0
Hello, everyone.
I saw this experiment:
A man is doing experiment with part of CD. He is making bubbles on it.
It is really interesting for me, but I really don't know how it works from physics view.

The blow makes some force with pushing on CD and it can push better if the CD is hot, yeah?
But how it can make bubbles? What is happen from view of molecular physic?

Thank you very much.
 
Last edited by a moderator:
Physics news on Phys.org
have you not blown soap bubbles using a loop ?

this is just the same. He just has to heat the plastic hot enough so that it will melt and deform
in this case into a bubble when it is blownDave
 
Thread 'Gauss' law seems to imply instantaneous electric field propagation'

Thread 'Gauss' law seems to imply instantaneous electric field propagation'

Imagine a charged sphere at the origin connected through an open switch to a vertical grounded wire. We wish to find an expression for the horizontal component of the electric field at a distance ##\mathbf{r}## from the sphere as it discharges. By using the Lorenz gauge condition: $$\nabla \cdot \mathbf{A} + \frac{1}{c^2}\frac{\partial \phi}{\partial t}=0\tag{1}$$ we find the following retarded solutions to the Maxwell equations If we assume that...
View full post »
Thread 'A scenario of non-uniform circular motion'

Thread 'A scenario of non-uniform circular motion'

(All the needed diagrams are posted below) My friend came up with the following scenario. Imagine a fixed point and a perfectly rigid rod of a certain length extending radially outwards from this fixed point(it is attached to the fixed point). To the free end of the fixed rod, an object is present and it is capable of changing it's speed(by thruster say or any convenient method. And ignore any resistance). It starts with a certain speed but say it's speed continuously increases as it goes...
View full post »

Thread 'Do electron density waves accompany EM waves in coaxial cables?'

Maxwell’s equations imply the following wave equation for the electric field $$\nabla^2\mathbf{E}-\frac{1}{c^2}\frac{\partial^2\mathbf{E}}{\partial t^2} = \frac{1}{\varepsilon_0}\nabla\rho+\mu_0\frac{\partial\mathbf J}{\partial t}.\tag{1}$$ I wonder if eqn.##(1)## can be split into the following transverse part $$\nabla^2\mathbf{E}_T-\frac{1}{c^2}\frac{\partial^2\mathbf{E}_T}{\partial t^2} = \mu_0\frac{\partial\mathbf{J}_T}{\partial t}\tag{2}$$ and longitudinal part...
View full post »

Similar threads

I Blowing Bubbles in Space: Can You Create a Giant Bubble in the Vacuum of Space?
Replies
9
Views
2K
B A question about warp bubbles and navigation
Replies
22
Views
655
I Concentrated arcs in bubble chamber photos
Replies
2
Views
2K
Diffraction Grating: Possible variables for Experiment
Replies
5
Views
2K
I An ID-card sliding on a low friction table
Replies
14
Views
1K
I A Question About the Physical Explanation Behind Torque
Replies
8
Views
1K
I Physics behind making a mango milk shake
Replies
2
Views
1K
B How to determine applied force when two objects collide? (basic physics engine)
Replies
9
Views
2K
I Understanding the physics of chimneys....
Replies
11
Views
6K
B Proving the Existence of Particles: An Exploration
2
Replies
94
Views
6K

Hot Threads

Recent Insights

Back
Top