Here's another Canada-related blog (I hope you don't get tired of this quickly Doc because I have two weeks worth of pics to blog about : )). This time, it's a different shopping mall that my family and I went to. The picture below was taken in Rockland, which I think is one of the best shopping malls I've been to. In the picture, a christmas tree is decorated with a bunch of ornaments and different decors. So, naturally, I thought of physics waaaay back during first semester (or even maybe first quarter), so allow me to treat you all to a blast from the past!
As seen above, the Christmas tree showcases a number of beautiful directions including several red lanyards. The red lanyards demonstrate physics in several way including the concept of TENSION. At the end of each red string is a hanging object of certain weight mg, which the tension F must be equivalent to because there is no vertical movement. In addition, the lanyards are attached to one or more of the tree branches. The weight mg of the object in addition to the tension F must be less than the tree branch's own weight because if it weren't the tree branch would sag / give way and as a result, the lanyards will fall to the ground. In addition, althought it definitely adds to the tree's aesthetic appeal, the lanyards are placed on both sides of the tree in order to prevent the tree from leaning to one side and keep the tree upright and centered. Furthermore, whoever was in charge of decorating the mall's trees showed good judgment and physics knowledge to not place the mirrors hanging on a tree branch like the red lanyards. Otherwise, the mirrors would have dropped to the ground because their weight mg2 is greater than the tree branch's. By placing it where it is, supported by a bed of tree braches, the tree could more easily support the objects. The mirrors are strategically placed where there is a support base underneath (jutting braches) and is not hanging above the floor.
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