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It was a bright and sunny day when I went into Club Why. I thought to myself,
why don't I see if there are any new games behind the Beta Testing door? I went
inside and discovered to my pleasant surprise that there is a new game, called
the Optics Workbench!
Now, the name didn't help me expect what the game really was all about. See
when I saw the word optics, I really couldn't tell you what that means. And
when I saw the word Workbench, I though of a bench that you sit on, and maybe
where you work. Not a whole lot of fun-sounding, to tell you the truth.
To my fascination, though, it turns out that optics involve mirrors, prisms
and lenses, anything that affects the way that light moves. That made me think
about optical illusions, which may use different forms of mirrors.
As I understand it now, based on playing this game, optics is a science relating
to vision and light.
The word workbench just means a sturdy table where manual work is done. So
I guess the word workbench in this game refers to the place where the optics
are set down and worked on.
When I clicked to start the game, I didn't know what to expect. I read the instructions
for the first level, which just stated, "There are 11 rays of light
leaving the flashlight. Your job is to get at least 7 of them to reach the candle
wick."
On your menu you have a number of items: a convex lens, a concave lens, a mirror,
and a prism. You drag one of the items on to the "workbench," and
try to make the item reflect the light rays from the flashlight to light the
candle. If you reflect 7 of the rays to the wick of the candle, your candle
will light, letting you accomplish that task and finish the level.
The first one is not too tough, but the levels get harder, especially as you
encounter larger or smaller wicks.
At first, I really didn't understand what a convex lens and a concave lens were,
but now I have a better idea. A convex lens is the most commonly seen lens.
This lens is usually used for close examination of small objects, for example
stamps, or old coins.
Kids like you and me also probably have used this lens but didn't know it.
For instance, when you use a magnifying glass to concentrate light from the
sun on a piece of paper to make it burn, you are using a convex lens. When rays
from a light approach this lens, they come to it parallel. That means each ray
is going on a path that won't connect with each other.
As each ray reaches the glass, it refracts or deflects, according to how and
where the rays arrive on the glass. Since the surface is curved, different rays
will deflect to different angles, which you can see when you play the game and
use this lens.
A concave lens is the total opposite of a convex lens. While a convex lens makes
light refract inwards, a concave lens makes light refract outwards. Convex focuses
light, convex makes it expand.
Concave lenses are used to correct short-sightedness, and convex lens are used
to correct long-sightedness. While a convex lens focuses light from a distant
source, a concave lens diverges light from a distant source.
Mirrors can also be concave or convex. Every mirror has a focal point, where
all the light directed at that mirror converges or diverges, and the distance
between the mirror and that point is called the focal length. Mirrors work like
lenses but they have reflective surfaces. This will make more sense to you if
you go into Club Why and play the game.
A prism is an object, usually made out of glass, with a base and end of equal
size. The type in the game is made of glass and has triangular ends, used for
separating white light into many colors, or for reflecting beams of light.
When I tried the game out, it was actually pretty fun. I used the mirror mostly,
though, because it worked the best for me.
This game helps you learn about how light reflects to and from different objects.
I would not have learned about convex lenses or concave lenses anytime soon
if it wasn't for this game. I hope the Optics Workbench comes out soon for everyone
to play and use to boost our salaries, because it is fun and educational at
the same time -- perfect for Whyville.
This is snowgri13, getting ready for softball... which has nothing to do with
light. ;-)
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