Abstract: A display system modifies display cycles of one or more displays to perform a system operation while avoiding visual perturbations at the one or more displays. The display system modifies, synchronizes, or both, blanking periods of the one or more displays such that blanking periods equal or exceed a blackout duration and overlap for at least the blackout duration. Then the system performs the system operation during an overlapping portion of the one or more blanking periods, where the system operation reduces availability of display data at the one or more displays.

Abstract: An embodiment includes an enclosure having a nutrient bed for retaining and providing nutrients to plants grown therein. An adjustment mechanism provided for adjusting the level of one or more environmental variables therein so as to at least partially simulate the growing conditions found at a specific altitude. Exemplary environmental variables include water levels, broad-spectrum light intensity, UV light intensity, pH, nutrients, air temperature, soil temperature, atmospheric carbon dioxide, atmospheric oxygen, atmospheric pressure and combinations thereof. The adjustment mechanism may include one or more broad-spectrum/full spectrum lights, UV generating lights, skylights, vacuum/pressure pumps, hypoxicators, oxygen generators, carbon dioxide regulators, heaters, air conditioning units and so forth.