Perennials, or plants and flowers that come back year after year, are found in virtually every yard.Perennial flowers work in multiple situations: in whole garden beds, in combination with annuals and bulbs, as accent to shrubs and trees, and in containers and windowboxes.ou'll also discover what perennial plants work well in sun or shade, USDA Hardiness Zones, growing requirements, and planting suggestions for perennials. View a list of perennials by common name or scientific name.
Homeopathic dilutions. In homeopathy, homeopathic dilution (known by practitioners as dynamisation or potentisation) is a process in which a substance is diluted with alcohol or distilled water and then vigorously shaken in a process called succussion.
Fractional distillation. This is good for separating two or more liquids from each other. For example, ethanol (alcohol) can be separated from a mixture of ethanol and water by fractional distillation. This method works because the two liquids have different boiling points.vaporation. This is good for separating a soluble solid from a liquid (a soluble substance does dissolve, to form a solution). For example copper sulphate crystals can be separated from copper sulphate solution using evaporation.