Another Virtual Reality

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Term Paper Title	Another Virtual Reality
# of Words	3043
# of Pages (250 words per page double spaced)	12.17

Another Virtual Reality

Imagine being able to point into the sky and fly. Or
perhaps walk through space and connect
molecules together. These are some of the dreams
that have come with the invention of virtual reality.
With the introduction of computers, numerous
applications have been enhanced or created. The
newest technology that is being tapped is that of
artificial reality, or "virtual reality" (VR). When
Morton Heilig first got a patent for his "Sensorama
Simulator" in 1962, he had no idea that 30 years
later people would still be trying to simulate reality
and that they would be doing it so effectively.
Jaron Lanier first coined the phrase "virtual reality"
around 1989, and it has stuck ever since.
Unfortunately, this catchy name has caused people
to dream up incredible uses for this technology
including using it as a sort of drug. This became
evident when, among other people, Timothy Leary
became interested in VR. This has also worried
some of the researchers who are trying to create
very real applications for medical, space, physical,
chemical, and entertainment uses among other
things. In order to create this alternate reality,
however, you need to find ways to create the
illusion of reality with a piece of machinery known
as the computer. This is done with several
computer-user interfaces used to simulate the
senses. Among these, are stereoscopic glasses to
make the simulated world look real, a 3D auditory
display to give depth to sound, sensor lined gloves
to simulate tactile feedback, and head-trackers to
follow the orientation of the head. Since the
technology is fairly young, these interfaces have
not been perfected, making for a somewhat
cartoonish simulated reality. Stereoscopic vision is
probably the most important feature of VR
because in real life, people rely mainly on vision to
get places and do things. The eyes are
approximately 6.5 centimeters apart, and allow
you to have a full-colour, three-dimensional view
of the world. Stereoscopy, in itself, is not a very
new idea, but the new twist is trying to generate
completely new images in real- time. In 1933, Sir
Charles Wheatstone invented the first stereoscope
with the same basic principle being used in today's
head-mounted displays. Presenting different views
to each eye gives the illusion of three dimensions.
The glasses that are used today work by using
what is called an "electronic shutter". The lenses of
the glasses interleave the left-eye and right-eye
views every thirtieth of a...

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