In this artistic representation, two carps, each clasping a jade bead in its mouth, symbolize fermions with opposite spins. The Dragon Gate represents both the superfluid transition and the ...

MORE: https://bit.ly/2MIrObS PITTSBURGH — In the hours following the Tree of Life tragedy, an image went viral, and it became the symbol of Pittsburgh during the last year.

There’s a clear image of the Confederate flag and soldiers, religious imagery to the left, images of Native Americans to the right, and images that Dr. Spearman describes as symbolizing slavery.