Bouncy balls rebound in response to the amount of force used when they contact hard surfaces. That simply means that a bouncy ball will bounce back at you with about 80 percent of the energy you used .
5 Unexpected Non-Printing Uses of Printer Cartridges | Empty ink cartridges can be put to some really creative uses. We bring you some terrific upcycling ideas to put used cartridges to work; some fun and enjoyable DIY projects for you!
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