Abstract: Modeling process and structural repair of a railway or metal car to assemble a hopper with a self-supporting body different from the original hopper that is formed from steel plates on the structure of the car.

Abstract: An educational game simulates a trip across the solar system from the Sun to the planet Pluto. Players begin at the Sun position on the game board, and progressively advance across the board to each planet position. Advance over the sequential playing positions between each planet is determined by a single die. Upon arriving at each planet position, the player must correctly answer a question relating to astronomy or astronautics. The board also illustrates an asteroid belt, containing a greater number of sequential positions. Players must count by a numerical factor determined by randomly drawing a card, to cross this area. Upon arriving at the planet Pluto position, the player must correctly spell the names of all nine planets of the solar system to return to Earth, winning the game. Two or more players/teams may play, with a non-playing keyholder asking the questions during play.