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It is easy to clean, but is afraid of hard sponges and damage. Microwave oven is recommended to clean each time after cooking food. Even if the food was covered with a lid, the inner surface must be cleaned with a damp cloth. Glass turntable or wash hands in warm soapy water or in the dishwasher with Special cleaning microwave ovens. Washed table wiped dry and then put in place. When cleaning any surfaces not use abrasives, and detergents containing toxic substances. Remove dirt from the outside of the furnace can be wet, soapy sponge, then wipe the surface with a damp cloth.

To clean the touch panel doors and use a damp cloth or napkin. Do not allow the accumulation of crumbs, food debris and grease on the gasket between the door and the frame (door insulation), as this can lead to loss of integrity. To remove dried food residues and grease, which are difficult washed away, it is necessary to put in the oven a glass of water and boil it for five minutes. The steam will help you easily clean the camera. When cleaning, be careful not to touch the vents, as well as cardboard, which magnetron closed. To get rid of odors in the oven, you need to boil it in a glass of water with a slice of lemon. Useful tips and precautions is not recommended to empty the microwave, because it may fail.

For the same reason you should not put in the oven the product weighs less than 200g. If you need to heat up a sandwich or a small portion of food along with it in the oven should put a glass of water. If the size of your stove less than 24 liters, then it is not recommended to put products weighing over 4 kg. Microwave oven door must be kept permanently closed: it does not require ventilation. Make sure that the door is firmly adjoined to body. Do not let the depressurization. You should not prepare food for longer than is required by the instruction. At worst, it may cause fire. You can not use the oven to sterilize empty jars, and drying dishes, cooking eggs in the shell and heating food in tightly sealed container. Before preparing to pierce the shell of sausages, pierce the peel potatoes, apples and pierce the yolks of eggs. Otherwise, they simply "explode", then your oven will look pretty pitiful. Microwave is not suitable for making soups. First, it takes no less time than using the stove. Second, large amount of liquid in the chamber creates extra moisture, which adversely affects the future work of the furnace. Following the rules listed, you can extend the life of your microwave. Perform some simple rules will not take long. In return you will get many years of flawless operation.

A LITTLE HISTORY It turns out that with good reason can be attributed to the oldest profession turner. His machine is perhaps the most ancient, mechanized equipment for materials processing. The earliest artifacts testifying to its application, found in Egypt and belong to the VII century BC. Oe. One image, dating from about III century BC. e., shows a device with a vertical piece of work, pressed top load. The role of this primitive drive of the machine played the assistant turner rotates the workpiece in one direction and then in the opposite direction, pulling the ends of the rope wrapped around her.

Subsequently, the rope pulled on a bent wood stick, and "gear" has come to resemble an onion or a hacksaw. With such a machine could no longer cope and the same person. Apparently, ancient chessmen and backgammon done that way. Around the XIII century, "bow" has replaced drive a new type, a bit like Kolodezny crane, with the difference that the horizontal pole was fastened tightly. The second end of the rope tied to the pedals – clicking on it, the operator drives the workpiece, and "Crane" served as a spring return. Machines with a drive in the shape of the bow, however, very compact size, long have been distributed among watchmakers and jewelers. Qualitative changes in the mechanism of a lathe made in second half of XVII century.

But the most significant invention of the time should be considered as something that was done nearly two centuries earlier – a sketch lathe Leonardo da Vinci. This is the first design for continuous rotation of the workpiece, "realized" by a foot pedal, a massive flywheel and crank. However, the mechanism was to ensure uniformity of the relative frequency of turnover and, hence, better control of the cutting tool. By the way, the incisors of the time almost no different from modern counterparts.