Lene Hau. Lene Vestergaard Hau (born November 13, 1959 in Vejle, Denmark) is a Danish physicist. In 1999, she led a Harvard University team who, by use of a Bose-Einstein condensate, succeeded in slowing a beam of light to about 17 metres per second, and, in 2001, was able to stop a beam completely.
Zeta is the sixth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 7. It was derived from the Phoenician letter zayin. Letters that arose from zeta include the Roman Z and Cyrillic Ð.
Zeta Tau Alpha. Zeta Tau Alpha is a women's fraternity, and is often referred to as a sorority. The women of ZTA (also referred to as simply Zeta) are classy, witty, and pretty. They're the girls who you can bring home to mom, but can drink your dad under the table. Their colors are turquoise blue and steel gray.