St. Johnsbury, Vt. — Students at the Arlington School in St. Johnsbury built a catapult out of junk materials and field-tested it last week. The device hurled water bottles, toy pumpkins and balls. At one point the students launched a watermelon,…
St. Johnsbury, Vt. — Students at the Arlington School in St. Johnsbury built a catapult out of junk materials and field-tested it last week. The device hurled water bottles, toy pumpkins and balls. At one point the students launched a watermelon,…
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