Combination of Star of David and Christian cross

Combination of Star of David/Christian cross on the wall of an old cemetery for both confessions, Berlin, Friedhof Wannsee, Lindenstraße, founded in 1886
Picture was copied from Wikimedia Commons

Nanotechnology

Christopher D. Horn referred me to six pointed stars each made from six yellow triangles, which appear on a photo that accompanies an article titled: As Nanotechnology Goes Mainstream, 'Toxic Socks' Raise Concerns; Unknown Risks From Nanosilver Cited

Caption under the photo:

A biosensor made from an array of silver nanoparticles deposited on glass. (Credit: Courtesy of the National Science Foundation).