Surface tension is a phenomenon in which the surface of a liquid, where the liquid is in contact with gas, acts like a thin elastic sheet. This term is typically used only when the liquid surface is in contact with gas (such as the air). Causes of Surface Tension.
There are several varieties commonly available, including White Vienna, Purple Vienna, Grand Duke, Gigante (also known as Superschmelz), Purple Danube, and White Danube. Coloration of the purple types is superficial: the edible parts are all pale yellow. The leafy greens can also be eaten.ohlrabi (German turnip or turnip cabbage; Brassica oleracea Gongylodes Group) is an annual vegetable, and is a low, stout cultivar of cabbage. Kohlrabi can be eaten raw as well as cooked.
Harvest kohlrabi stems when they are still young and tender, usually about 2 1/2 to 4 inches in diameter. Harvest by cutting them from the base of the plant. You can trim the leaves from the stem and save them to cook separately. Kohlrabi keeps for 2 to 3 weeks in the fridge. You can peel and slice kohlrabi tubers to eat them raw with dips or in salads, or you can cook them like turnips. The leaves are cooked until just tender, like cabbage or turnip greens. Get gardening info on the go with our free app, HOMEGROWN with Bonnie Plants.