Odds & Ends
Project Display Trifold
Simple large white cardboard trifold, excellent for mounting science fair project
displays, charts, graphs, posters, photographs, etc. Also used as privacy screens
and lightweight backdrop or scenery base for theatre or dance groups. 60" high
by maximum 96" wide when unfolded flat. Easily cut down to any size with razor
knife. Hint: Check with your science fair co-ordinator to make sure the size falls
within their prescribed limits. This is the "offically" recommended
trifold for the Calgary Youth Science Fair (CYSF). This item is so large, even when
folded, that shipping them outside of Calgary is impractical. Delivery to Calgary
addresses available (delivery fee applies), or pickup at our Hawkwood showroom is OK.
TRIF.01 Trifold, white cardboard, 60" X 96"
Scientific tuning, not concert tuning. Full octave available, from middle C to high C.
Gently strike the tuning fork with a rubber hammer or tap the tuning fork against the heel
of your shoe, and hold it next to your ear to hear the tone. Experiment with different
sounding boards to amplify the sound. TUNE.02 is the best for demonstrating the vibration
of a tuning fork by striking it, then dipping the vibrating tines in a glass of water. The
vibrating tuning fork splashes drops of water up to 1 foot away.
TUNE.01 middle C (256 Hz) $15.00 each
TUNE.02 D (288 Hz) $15.00 each
TUNE.03 E (320 Hz) $15.00 each
TUNE.04 F (341.3 Hz) $15.00 each
TUNE.05 G (384 Hz) $15.00 each
TUNE.06 A (426.6 Hz) $15.00 each
TUNE.07 B (480 Hz) $15.00 each
TUNE.08 high C (512 Hz) $15.00 each
TUNE.09 full octave, TUNE.01 to TUNE.08 $100.00 set
This page, website, and entire work is copyright © 2000-2018 George Pastirik
P.O. Box 64291
CANADA T2K 6J0
Phone: (403) 547-4422
Fax: (403) 547-0235
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