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Scott Weaver spent 3,000 hours over the past 35 years to complete these amazing toothpicks project "Rolling through the Bay". He used over 100,000 toothpicks to build this incredible sculpture of San Francisco. After 35 years and 100,000 toothpicks, Scott Weaver completed this amazing sculpture of San Francisco he calls “Rolling Through the Bay...

A POTD is an acronym for "Photo of the Day", "Picture of the Day", "Post of the Day" or "Poll of the Day". It is a term most commonly used by online digital photography communities as an honor to outstanding photos that are selected daily from among that community's membership. They can either be tagged as POTD or displayed in a special page on that site...

Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected. Mirrors exhibit specular reflection. In acoustics, reflection causes echoes and is used in sonar...