Roof for stadium has suspended roof sections which can be lifted for opening the grass to sun and rain
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Method for producing silicon nitride
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Production of silicates, for use in e.g. flame retardants or as binders, involves preparation of silicon nitride at low temperature from silicon (compound) and nitrogen over transition metal (oxide) catalyst and reacting with strong base
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Production of ammonia for use in e.g. synthetic fertilizers, comprises forming silicon nitride from silicon (compound) and nitrogen, in the presence of a transition metal (oxide) catalyst, and reacting it with a strong base
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Silicon nitride preparation useful as a starting material for other products and as energy source involves forming silicon nitride from silicon (compound) and nitrogen over transition metal (oxide) catalyst by exothermic reaction
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Inexpensive production of energy e.g. for use in driving motors or as heat source, by burning compounds containing silicon-carbon, -oxygen, -silicon and/or -hydrogen bonds
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Method for operating a drive
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Process and a device for establishing drilling holes
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Method for driving a shaft and drive therefor
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Process for operating a reaction-type missile propulsion system and missile propulsion system
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Discus-shaped aerodyne vehicle for extremely high velocities
