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By Science News
Concerning kids’ backpacks, these are not “backpacks.” These are better called “school” or “convenience” packs. A true backpack carries the load on the hips and waist, with shoulder straps for hold and balance, and does not encourage a stooped posture from carrying the load on the shoulders.
Joseph Kostka
Natrona Heights, Pa.
Robert E. Moore
Pittsfield, Mass.