contactjuggling.org
main
front page
CJC
essays
profiles
register
moves
links
videos
gallery
tips
chat
clubs
maps
forum
FAQ
events
Valid XHTML 1.0
Valid CSS
Be kind to your Neighbors
this site is sponsored by Infinite Illusions
LOG INregister new user

General
 New Topic  |  Go to Top  |  Go to Topic  |  Search  |  Log In   Previous Message  |  Next Message 
 Re: New ball
Author: Klas 
Date:   04-07-02 00:00

Just to add some more data.

According to physics handbook (Nordling/ Ísterman):

The density (10^3 kg m^-3) for:
Acrylic: 1.2
Glass (common) 2.5

Which gives that a glass ball should be approx double the weight as an acrylic of the same size. Can't imagine there beeing to much of a difference between different types of glass.

Also

Thermal conductivity (W m^-1 K^-1):
Acrylic: 0.2
Glass (common): 0.9

So the a glass ball should feel a bit cooler than an acrylic.

I promise that I'll shut up about my new ball for a couple of hours now.

Klas
 Reply To This Message  |  Flat View   Newer Topic  |  Older Topic 

 Topics Author  Date
 New ball  new
Klas 04-06-02 12:18 
 Re: New ball  new
ICU812 04-06-02 18:00 
 Re: New ball  new
Ferret 04-06-02 18:56 
 Re: New ball  new
Klas 04-06-02 23:04 
 Re: New ball  new
mdamelio 04-06-02 23:08 
 Re: New ball  new
Klas 04-06-02 23:21 
 Re: New ball  new
Klas 04-07-02 00:00 
 Re: New ball  new
ICU812 04-07-02 00:28 
 Re: New ball  new
Klas 04-07-02 12:00 
 Re: New ball  new
Kae Verens 04-08-02 14:08 
 Re: New ball  new
Klas 04-08-02 14:58 
 Re: New ball  new
remy 04-08-02 19:42 
 Crystal is strong  new
Rich Shumaker 04-06-02 22:00 
 Re: New ball  new
Rob 04-08-02 12:04 
 Re: New ball  new
Klas 04-08-02 13:37 
 Re: New ball  new
mdamelio 04-08-02 16:06 
 Re: New ball  new
ICU812 04-08-02 23:03 
 Re: New ball  new
Klas 04-09-02 08:08 
 Re: New ball  new
Ferret 04-08-02 23:37 
 Re:  new
remy 04-09-02 03:44 
 Re: New ball  new
Klas 04-09-02 08:09 
 flame test  new
silver 04-09-02 00:41 
 Re: flame test  new
ICU812 04-09-02 03:39 
 boring answer  new
silver 04-09-02 00:45 
 Re: boring answer  new
Klas 04-09-02 08:11 


 New Topic  |  Go to Top  |  Go to Topic  |  Search  |  Log In 
 Reply To This Message
 Your Name:
 Your E-mail:
 Subject:
E-mail replies to this thread, to the address above.
   

this site is ©2001 Kae Verens. extracts may not be used unless permission is granted. images & text are © their submitters.