Goal (sport) any net used not interfere with the goalkeeper. A goal in handball is scored when the ball is thrown completely over the goal line, below the crossbar and between the goal posts. The goal structure in team handball is 2 metres high and 3 metres wide. A net is required to catch the ball. In hockey, a goal is scored when the ball or puck passes completely over the goal line under the crossbar and between the goal posts, after being shot from with a semicircle from the goal. The goal structure in field hockey is wide by tall. Nets
Wide-field multiphoton microscopy all the elements of the formula_4 tensor thanks to the capability of being able to change the polarisation of each beam independently. Wide-field multiphoton microscopy Wide-field multiphoton microscopy refers to an optical non-linear imaging technique tailored for ultrafast imaging in which a large area of the object is illuminated and imaged without the need for scanning. High intensities are required to induce non-linear optical processes such as two-photon fluorescence or second harmonic generation. In scanning multiphoton microscopes the high intensities are achieved by tightly focusing the light, and the image is obtained by stage- or beam-scanning the sample. In wide-field