How Does It Work. When wind hits the weather vane, it pushes on the larger surface. In this case, the larger surface is the end of the straw with the index card glued into the slit. As a result of this pushing effect on the index card, the other end of the straw will point into the oncoming wind.
They offer full-electric hospital beds at a cost of $165-$215 per week. Their standard, twin-size beds are 36 wide by 80 long, and will support patients weighing up to 450 lbs. Over-bed tables are available to rent at a cost of $30-$35 per week.lso, should something go wrong, it can be easier and faster for a local company to fix the problem. Spinlife.com. Spin Life offers semi-electric beds that feature electronic foot and head controls, and a manual adjustment for the bed height, for a cost of $150-$185 per week.
1 On average, a sofa bed can cost anywhere from $150 for a lower end model to as high as $1,400 for a deluxe bed.2  The popular Handy Living CAC4 on Amazon retails for $360 to $450. 3  For instance, Target sells a variety of sofa beds that come in different designs, sizes, and functions. Type. 2  A pull-out sofa bed will usually be much more expensive than a futon. 3  Quality. 4  Some futons can be purchased for as low as $100, but the quality of the frame and mattress are not as high.