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28
Replace the disc in the disc holder with the one shown
here, and repeat projects 31-33. Observe the strobe
effects. At some RV settings, the rainbow of colors
comes into view.
Project 33
Use the circuits from projects 31 and 32, but add the 0.1mF capacitor (C2) next to the motor, as shown
here. Set the strobe speed so the patterns are visible, and see if they look less blurred than before.
The 0.1mF capacitor has no electrical
effect,but it helps to hold the motor in place
better and reduce vibrations. Less motor
vibration makes the disc holder more
stable, and so makes the patterns a little
clearer. See if you can notice a difference.
Replace the disc in the disc holder with the one
shown here, and repeat projects 31-33. Observe the
strobe effects. To remove a disc from the holder,
use your ngernail, or use a pencil to push it up from
beneath one of the tabs.
When the disc pattern is totally blurred,
it appears to be white. Combining equal
amounts of red, green, and blue makes
white. The LED in the color organ IC
combines red, green, and blue lights to
make white.
Replace the disc in the disc holder with the one
shown here, and repeat projects 31-33. Observe the
strobe effects. With this pattern, some areas may
appear to be moving at different speeds or directions.
Sometimes you can see all the colors on the disc, but
sometimes you can see all the colors except blue,
which is hidden.
Replace the disc in the disc holder with the one
shown here, and repeat projects 31-33. Observe the
strobe effects. This unusual pattern produces several
amazing displays at different RV settings.
Project 34 Strobe Effects (II)
Project 35 Strobe Effects (III)
Project 36 Strobe Effects (IV)
Project 37 Strobe Effects (V)
Project 38 Strobe Effects (VI)
Project 39 Make Your Own Strobe Effects
Replace the disc in the disc holder with the one
shown here, and repeat projects 31-33. Observe the
strobe effects. When the disc pattern is totally blurred,
it will appear as purple, cyan, and yellow. Combining
equal amounts of red & blue makes purple, green &
blue makes cyan, and red & green makes yellow.
Draw your own patterns on paper or cardboard, then cut them to the same
size as our discs. You can also draw patterns on the backs of our discs.
Put them on the disc holder and repeat projects 31-33. Have a contest with
your friends to see who can make the most interesting strobe effects! You
can also nd lots of fun patterns and visual illusions by doing a search on
the internet. There is no limit to what you can do!
Stable Strobe Effects
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