To become a hollow, another hollow must eat your soul. Once they have taken your soul, you become a hollow. :D
birds have hollow bones to help them fly
Barkhamsted Hollow ended in 1940.
There are no bras in Pixie Hollow.
Sleeping Hollow was created in 2006.
why propeller shaft are made hollow
Depends on what you mean by "better". For the same dimensions, a solid shaft will be a bit stronger, but also a lot heavier. If you were to make a hollow shaft of the same weight, but a bigger diameter, it'd be a lot stronger than the solid shaft.
the hard hollow "backbone" of a feather
Because the load taking capacity of hollow shaft is more as the load per unit area is lesser due to the lesser cross sectional area.
Most of the force in a shaft is carried by the outer layers of the shaft, and very. very little by the center. By using a hollow shaft you get almost the same turning strength for a lot less weight and material.
To find the circumference of a round shaft (either outside dimension or inside dimension of a hollow shaft), multiply the diameter by Pi (C = Pi x D). Pi = 3.1416.
You cannot. The mass depends on the material of the shaft and that has not been specified.
To reduce weight and for good heat disposal.
medullary cavity
The shaft of the bone, between the epiphyses, is called the diaphysis. It has a hollow central medullary cavity containing marrow.The shaft of long bones is called DIAPHYSIS
the reebok o stick is semi hollow so to say. from about a inch above the "o's" or holes inthe stick there is black foam in the shaft and blade for support and strength. from there up the stick is hollow for the rest of the shaft. the reason behind the holes in the shaft of the stick is for weight savings and strength. if you look closely at the holes they are not perfectly round they are oval and that is for strength as an arch displase stress better.
Water towers are used to increase the pressure in the supply. The purpose of an access ladder is to afford a way for maintenance personnel to reach a rigging ring located outside near the top of the vertical shaft. Except for pipes leading to and from the supply tank, the shaft is hollow and the access ladder is passed into the shaft in sections and welded to the shaft wall. When the outer shaft and tank need painting, a rigger will enter the hollow shaft and climb the ladder to reach the hatch which allows access to ring where he or she will tie off specialized gear in aid of making it safe for the painters working up high.