What is a knob? No one asks such a silly question. The humble knob has around as long as furniture has been around. It has gone through major evolution in size, material and mostly in design; but the shape more or less remains the same. Nevertheless, its utility value is ever increasing and no one realizes that. You see it on doors, windows, cabinets, shoe racks, wardrobes, electronic items and even on kitchen utensil covers. It has utility value in your homes as well as in a spacecraft. On earth or in space, it faithfully does it’s duty. All it needs is a single screw and it sits on your drawers and cabinets providing service for years. It hardly complains. It is fixed at such a strategic point that just a tug on it makes the cabinet door rotate on its hinges and submit. If you ever want to see the creativity ability of man, look at the knob. Man has transformed this simple fixture into a piece of art. The early knobs were made of wood. Today, knobs are available worldwide in various shapes, sizes, materials and colors. They are made of copper, brass, crystal or glass. Crystal knobs are stronger than glass and they are artistically cut to give beautiful appearance.
The humble knob
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