Spatial Data Objects. The geometry and geography data types support sixteen spatial data objects, or instance types. However, only eleven of these instance types are instantiable; you can create and work with these instances (or instantiate them) in a database.
Rewiring the grain. Metabolic engineering. Golden Rice technology is based on the simple principle that rice plants possess the whole machinery to synthesise Î²-carotene, and while this machinery is fully active in leaves, parts of it are turned off in the grain.
Sticky rice mortar probably was the world's first composite mortar, made with both organic and inorganic materials. The mortar was stronger and more resistant to water than pure lime mortar, and what Dr Zhang termed one of the greatest technological innovations of the time.