Can you tell me an idea for creating a working model of some useful thing?

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For joining a competition I want a best idea of making working models. It should be subjected to science.Are you a scientist? Please help me!

2007-02-01 00:19:53 · 1 answers · asked by GOKUL S 1 in Science & Mathematics ➔ Engineering

Do a stadium with a retractable roof, rotating solar panels to follow the sun, and motorized retractable seating.

2007-02-01 02:09:02 · answer #1 · answered by MarauderX 4 · 0⤊ 0⤋