How Many Licks? remaining on the chart for 20 weeks. "How Many Licks?" also charted in several other countries. It peaked at number six on the Dutch Top 40 chart, and remained on the chart for 13 weeks. The single reached number seven on the Ultratop chart in the Flanders region of Belgium, also remaining on that chart for 13 weeks. It further peaked at number 58 on the German Singles Chart, remaining for eight editions. The song's music video, directed by Francis Lawrence, was shot in the Sylmar, Los Angeles neighborhood of Los Angeles on October 3 and 4, 2000, and premiered
Cross section (physics) to the sum of cross sections over all events. The differential cross section is extremely useful quantity in many fields of physics, as measuring it can reveal a great amount of information about the internal structure of the target particles. For example, the differential cross section of Rutherford scattering provided strong evidence for the existence of the atomic nucleus. Instead of the solid angle, the momentum transfer may be used as the independent variable of differential cross sections. Differential cross sections in inelastic scattering contain resonance peaks that indicate the creation of metastable states and contain information about their energy