Introduction
------------
This program is based on Albert Einstein's Relativity Theory. According to
it the passing of time is slower in a moving system, the time is used as a
4th dimension (3 space + 1 time coordinates). At extreme speed the time
slows down. The dilatation effect is the most significant when the speed is
not too small to speed of light. There are numerous scientific evidences of
the theory, that demonstrated this interesting thing.

Description
-----------
This program calculates time dilatation between a moving and a stopped
(relative) object. It calculates time dilatation only speed related (not
e.g. gravity).

Requirements
------------
It should work on any Amiga.

Installation
------------
It is a CLI controlled program, just run it from a shell.

Usage
-----
Relativity [sc] <Parameter1> <Parameter2>

Two parameters have to be entered, and the third will be calculated from
them. Scientific notation (1.123456e[±]78) numbers can be entered at any
time, but using "sc" the results will be displayed this way, too (suitable
for huge values). Some very accurately given numbers may cause an overflow
which results inaccurate values.

The parameters are:

 Distance:
  -km kilometer
  -au astronomical unit (149.5979 million km)
  -ly light-year (~9.46054e+12 km)

 Time:
  -s second
  -h hour
  -d day
  -y year

 Velocity:
  -kmh kilometer/hour
  -ms  meter/second
  -kms kilometer/second

 The constant speed of light: 299792458 m/s

The results are displayed in all units because of high ranges.

Examples
--------
1. We travel (at 280000 km/s speed) on a spaceship to Altair system (16.5
light-years far) and back, too.:

  Relativity -ly 33 -kms 280000

  The third parameter is counted, which is the Time in this case: 35.4 years.
  This is the length of time of the travelling on Earth.

  Time of moving system: 12.7 years. This is our period on the board of
  spaceship (hibernation could be helpful to survive).

  Time dilatation: 22.7 years. Time difference between on the ship and
  on Earth, so we became 22.7 years younger than the ones stayed on Earth.

2. Taking a tour in our solar system on a "slow ship" to Jupiter and back, 
the results won't be significant.:

  Relativity -km 1260000000 -kmh 300000

  Takes 175 days and the dilatation is almost 0.6 second.

3. Universe sightseeing tour (go for a photon ride) at near speed of light.:

  Relativity -ly 4e10 -ms 2.99792457999e8
  or
  Relativity sc -ly 4e10 -ms 2.99792457999e8

If we accelerated something in some kind of electro-magnetic accelerator
which could almost reach speed of light, we would get very interesting
values. The time of light (or other fast elementary particles) is also an 
amazing matter.

The enclosed picture illustrates the connection of velocity and time
dilatation.

Conclusion: Other main points of Einstein's theory that speed of light is
limited, and an object with mass can not reach it, no matter how much energy
is applied to. Unfortunately it seems to be true, another way has to be
found to discover the universe. Maybe travelling like globe-lightning using
more dimensions or do some space-warping like black-holes.


Copyright
---------
Relativity is copyright © 2000-2001 Attila Fehér. This program is Giftware.


History
-------
Version 1.1 (2001.07.11):
 -Modified for more accurate calculation
  (Reported by: Voytek Gagalka)
 -Added scientific notation
 -Some minor changes

Version 1.0 (2000.05.18):
 -First Aminet release


Author
------
  Attila Fehér
  8840 Csurgó
  Réti József u. 26
  Hungary

  Phone: +36 82 471 253

  E-mail: atec5@yahoo.com

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
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[generic]                 9934   23844  41.7% -lh5- 21c8 Jul 11  2001 Relativity/Relativity
[generic]                 4845   24150  20.1% -lh5- d076 Jul 11  2001 Relativity/Relativity.iff
[generic]                 1861    3751  49.6% -lh5- 0ed2 Jul 11  2001 Relativity/Relativity.readme
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 Total         3 files   16640   51745  32.2%            Jul 12  2001