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.
Virgo/Libra Cusp (September 19-23) Virgo is ruled by Mercury, is an Earth element and Mutable (changeable) in quality. Libra is ruled by Venus, is an Air element and Cardinal (active) in quality. Virgoâs devotion to lending aid and support works quite nicely with Libraâs need to create partnership.