Cool story alert: In Grade 5 or 6, so 27 or 28 years ago, for a inter-school project, me and my buddy had an idea for a goal detector. The posts were to have sensors, basically creating an invisible infared field, that, as soon breeched by two sensors, furthest apart from each other (so that 98% of the pick was over the line), within the puck, turned the goal light on automatically.
The net gets knocked off, the field has no power/connection so no goal could count.
The idea had to have come out of a disallowed goal at some point in the mid-late 80's Flames season.
Non working models made of balsa wood, the full scientific process was followed...the whole 9 yards as school projects had to be. Problems were the cost of the sensors and the % of goals that didn't 100% cross because of puck placement sensors couldn't be at the absolute edge of the puck.
Still have the written portion of the project probably at my parents house.
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