A countergravitational gradient of venous pressure (Pv) exists in the giraffe'sneck. Measurements of the gravitational (or hydrostatic) gradient of pressure with height, in an upright animal 3.5m tall, show that blood pressure in an artery in the head is as much as 110mmHg (∼1.5mH2O or...
This is a versatile plant, which responds well to trimming, so it easily makes all sort of shapes, from small trees with a single trunk, to cones, pyramids, balls and even spirals. It is also ideal for smaller hedges, between four and ten feet tall. Japanese privet is hardy in all ...
This variety of hornbeam is a medium sized, upright growing tree. It requires very little maintenance and is tolerant of air pollution, making it an ideal street tree. Its common name comes from the extremely hard wood of this tree that produces a horn-like polish and was once used in Eur...
The bunching stacks are moved to an access lane through the timber stand and combined to form loading stacks along the edges of the access lane. As the felled trees are moved through the stand, they are always maintained in an upright position. 展开 ...
This pencil Xmas tree features an X-shaped iron stand that provides strong support. Compared with other cheap plastic bases, the metal stand is more stable and breakage-resistant, keeping it standing upright for years to come. Besides, the metal stand is foldable to facilitate s...
There areover 100 different species in this fascinating group of plants, and many can be grown as houseplants. They are all recognized by the thin, strap-like leaves growing in clusters at the tops of upright stems. Sometimes the leaves are green, other times they are striped in green, red...
This "Hillside Upright" Norway spruce—with lights, pinecones, burlap, and feathers—grows up to 20 feet tall and is suited to the Upper and Middle South. Here, the tabletop size is the finishing touch for a festive porch. You can always stick with one, but having one on each side of...
The Tree is dioecious, producing only male or female flowers on different individuals. The minute (less than 1mm) yellow flowers are borne on catkins at the axillary. Male flowers start as upright narrow cones when young and as they develop, elongate into longer spikes about 5-10 cm that ...
Chokkan or formal upright form.The bonsai is growing straight with branches that are spaced evenly around it. Moyohgi or informal upright form.The tree is slanted in a natural looking way. Shakan or slanting form. This is a very creative look as the tree is trained to slant for a windswe...
You can make a whimsical tabletop Christmas tree using unused wine corks. Start with gluing up the corks in an upright position around a Styrofoam cone leaving small gaps between each cork for battery-powered lights. Decorate with a bow, star, or other small ornaments of your choice and your...