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| Let's drop in on Wily and
look over his shoulder at his latest project.... |
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Buddhist Temple Statue Light |
| Wily was
just about to crawl into his warm bed and take a short nap when his phone
rang. The call was coming from half way around the world. A
lighting engineer needed Wily’s help. The engineer wanted to
illuminate a stature in a Buddhist temple.
The caller had already
selected a one watt white LEDs, which was mounted in a reflective ceiling
assembly. The light would shine down onto the top of a statue.
The light was to run every hour 7 days a week.
OK, so why did they
need Wily’s help? The kicker was that there was no utility electricity
for the light. It was going to have to be powered by solar energy.
They had plenty of room for the hardware needed. They would going to mount
the solar panel on the roof and put the rest of the hardware at the back of
the building. They would run wires to the LED light..... |
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7 |
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Wily Widget,
the Lone Inventor
with Gadget & Gizmo |
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| WHAT
THE WORLD NEEDS NOW is a....Space Helmet for Yard Work |
| This
request came from a guy in Arizona. He has allergies and hates to work
out doors. He wanted some kind of suit he could put on when he had to do
yard work. Pulling weeds, mowing the lawn and many outside chores in the
summer can be taxing on the human body. When the air temperature is
100 degrees it can even be dangerous. What he wanted was a system
which could be worn over the head, perhaps like a space helmet,..... |
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con't on page 6 |
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Ultra Low Current Circuit Examples
By: David Johnson
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There are some wonderful new integrated circuits coming out. Some are designed
for very low power applications. I encourage you to play around with
some of these new devices. One application example is shown below.
It is a LED flasher circuit which draws about 2ua of total current from a 3v
supply..... |
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story con't on page 4 |
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Modulated
Light Interference
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| I got a call
from a music listener. He was begging me to help him with a problem. A
few years ago he had purchased a very nice cordless audio headset. The
system worked well and he used it often. Then, he moved to a new house.
Once he got settled, he tried using his headset but it would not work. Or,
more precisely, it would not work very well..... |
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story
con't on page
3 |
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Bark Off
Ultrasonic Barking Dog Deterrent Device
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| I have two
Beagle dogs who love to bark. They are especially annoying when we take
them for a ride in my minivan. They get excited and bark, a lot. I
saw this ultrasonic device advertised on TV a while back and then later saw
the same device for sale at a large discount store. I decided to give it
a try. In short, it did nothing for my dogs. I could not tell if
the thing produced sound. There is a slight hiss sound when it is
supposed to be producing ultrasound but my old ears are not sensitive enough
to those high frequencies.
.... |
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story con't on page 5
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Space Mirror for City Illumination
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Many years ago the Russians experimented with
space mirrors. The idea was to place a very large mirror
into earth orbit and have it redirect sunlight down onto the
earth’s surface below. The mirror would be positioned so
the sunlight would illuminate a whole city wide area during
nighttime. Just how practical is this concept? How
bright would the light be? If it worked, then a city could
use the mirror instead of street lights, which could be a real
energy saver.... |
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