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Balancing Bird
Our Price: $3.99
Sale Price: $2.49
Savings: $1.50
Wimshurst Machine Invented by James Wimshurst in 1883.
Sonometer, Simple
Our Price: $24.95
Digital Up/Down Student Timer
Our Price: $4.89
Sale Price: $3.39
Savings: $1.50

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Wimshurst Machine
Our Price: $74.95
Sale Price: $59.95
Savings: $15.00

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