On first glance, the toy may not look like much: a springy piece of steel wire with cardboard rolls at the end. But its ...
A compilation of pushing and pulling forces. A variety of ‘real life’ examples are used, including jumping on a springy toy in a playground or hitting a ball. Note: There is no narration in ...
A compilation of pushing and pulling forces. A variety of ‘real life’ examples are used, including jumping on a springy toy in a playground or hitting a ball. Note: There is no narration in ...
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