 |
 |
||||
|
|
||||
-Z- (z@gundam.com)
Tue, 14 Nov 2000 17:32:53 -0800
> -----Original Message-----
> From: owner-gundam@1u.aeug.org [mailto:owner-gundam@1u.aeug.org]On
> Behalf Of -Z-
> Sent: Tuesday, November 14, 2000 15:52
> To: gundam@aeug.org
> Subject: [gundam] POV vs "Pure" Physics
>
> As the object moves outward from the axis, accelerating all the way, the wall
of
> the cylinder turns at a rate of 644 KPH (400 MPH) around that axis. From the
> perspective of both the "falling" object and anyone standing on the hull, the
> object appears to move upspin at that rate at the same time that it's moving
> outard ("down") toward the hull. The net result is a spiral path of
increasing
> magnitude, rather like the cross-section of a nautilus shell, until the object
> intersects the plane of the hull nearly head-on.
Actually, I got it wrong here. The perception of a spiral path only applies to
the observer on the hull. From the POV of the object, the "descent" is a
straight path, with the hull going around at the aforementioned 644 KPH. At
first, from a distance of 3,2 km, this seems relatively slow -- one revolution
every two minutes -- but, as the object approaches the hull, the hull seems to
speed up until features on the hull appear to be flashing by like jet aircraft.
So it's apples AND oranges, not apples OR oranges -- both POV are equally valid,
depending on your situation within the rotating cylinder.
-Z-
-
Gundam Mailing List Archives are available at http://gundam.aeug.org/
This archive was generated by hypermail 2.0b3 on Wed Nov 15 2000 - 10:17:55 JST