The 17th Century physicist Isaac Newton observed in his famous laws of motion that objects at rest stay at rest and objects in motion stay in motion unless acted upon by an outside force. You’ve perhaps experienced this phenomenon as you chase your kids’ baseball while it rolls for a block and a half as […]
from Mark's Daily Apple http://ift.tt/1HLOYm6
from Mark's Daily Apple http://ift.tt/1HLOYm6
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