Back to Home

Blackholes Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Blackholes I | Post

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Re: The Incredible Shrinking Space

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Alexander on January 22, 2001 23:19:07 UTC

The first question is easy one: the number you are talking about is called zero (0). Any other number puts you either in front of the wall or behind it.

Answer on the second question depends on what do you call "constant rate". If, as usually, you mean that the radius (x) change with constant rate dx/dt=const, then yes, the ball with radius Ro will reduce to zero in exactly t=Ro/(dx/dt) seconds (where dx/dt is the rate of reduction of golf ball radius).

Follow Ups:

    Login to Post
    Additional Information
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2024 John Huggins All Rights Reserved
    Forum posts are Copyright their authors as specified in the heading above the post.
    "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
    are trademarks of John Huggins