Mariachi in front of the plaza to flag down passing cars. In 2010, the government renovated the plaza to make it more tourist-friendly, adding new paving, gardens, police, security cameras, painted facades, and a museum dedicated to mariachi and tequila. Although mariachis can be hired in Mexico City over the phone or on the internet, many people still prefer to come to the plaza, hear the musicians and haggle over the price. About 2,500 mariachis hold union cards to work in the plaza, but as many as 4,000 may circulate through on a busy weekend. The size of a Mariachi group
MARIACHI Laboratory. Its inventors hope the MARIACHI apparatus will detect UHECR over much larger areas than previously possible, and that it will also detect ultra-high-energy neutrino flux. The ground array detectors are scintillator arrays that are built and operated by high school students and teachers. MARIACHI MARIACHI, the Mixed Apparatus for Radar Investigation of Cosmic-rays of High Ionization, is an apparatus for the detection of ultra-high-energy cosmic rays (UHECR) via bi-static radar interferometry using VHF transmitters. MARIACHI is also the name of the research project created and directed by Brookhaven National Laboratory (BNL) on Long Island, New York, initially intended to