Bicycle Algometer use of beaker in laboratory or educational experiment

or educational experiment

too little humidity can cause dryness

this pocket precision digital scale provides the accuracy necessary for weighing even the smallest items

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Bicycle Algometer use of beaker in laboratory or educational experimentBicycle Ergograph A bicycle frame is supported by a wooden stand, from the front of which two uprights ascend and carry a desk and cross piece, which provide for the attachment, directly in front of the subject, of the tension balances and other pieces in front of the subject, of the tension balances and other pieces of apparatus. A cast iron wheel of 5 1 2 feet in circumference, weighing 22 Kilos and mounted on ball bearing, is substituted for the