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Microwave oven that chooses how to cook food

13.03.2005

What the creators of "smart" refrigerators from Electrolux stumbled on was commercially successfully implemented by the developers of Salton. Their microwave oven is equipped with a barcode scanner and memory, which contains about 4 products.

After reading the code using a convenient scanner-pen, mounted on the front panel, the electronic "brain" of the stove finds the desired recipe in the database and starts the appropriate mode of operation. Additional data is loaded into memory using special Smart Appliance Network Interface (SANI) cards.

Product codes and programs can also be entered manually. The oven has a power of 850 W, an internal volume of 25000 cubic centimeters and a large LCD display with trendy blue backlight.

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Soluble Electronics 31.10.2013

Electronics, which is being developed by Professor John A Rogers of the University of Illinois at Urban-Champaign on behalf of the Pentagon, will be protected from outside intrusion. It will decompose in the presence of water or other catalyst. Such electronics will be useful in the army, medicine, industry and many other areas.

John Rogers reports on the latest advances in the development of dissolvable electronics and believes that in a year or two, biodegradable electronics will be tested on humans. At present, scientists can already demonstrate a small fingernail-sized chip made of silicon, magnesium and silk, which is destroyed in 1 minute upon contact with water. After water drops hit, the microcircuit begins to curl up into a tube, after which the transistors and diodes are destroyed, and the electronics turn into garbage. In 2 hours, the integrated circuit completely dissolves in a glass of water. Earlier last year, dissolvable electronics were implanted into the body of a test mouse. The implant locally produced enough heat to kill bacteria that cause postoperative infections. After 2 weeks, the electronic implant dissolved in the body of the mouse with no obvious side effects for the animal.

Two problems stand in the way of creating soluble electronics today: controlled dissolution and biocompatibility. With the first moment, everything is clear: I would not want the radio station or the control unit of the aircraft to suddenly fail during operation. While water is used to initiate the destruction, that is, the electronics can die from the loss of tightness of the case, the rupture of the capsule with water as a result of the UAV hitting the ground or, for example, by radio command. Biocompatibility is achieved by using substances such as zinc oxide or magnesium, which are absorbed in small amounts by body tissues without negative consequences. Prototypes of biodegradable batteries have been developed in a similar way.

New electronics can make a small revolution in the very concept of using electronic devices. For example, various sensors can be dropped into the soil and ocean without fear of environmental pollution. In medicine, soluble electronics can be used to monitor the condition of an implant (prosthesis, transplanted organ). A soluble chip can not only detect the first signs of rejection, but also, for example, destroy bacteria using local heating. After some time, such a chip will dissolve without a trace.

In the longer term, according to Rogers in 10 years, dissolvable electronics will become commonplace. We will get used to the fact that the smartphone can be thrown into the toilet, where it will completely dissolve without harm to the environment. Medical tests will be an implantable chip that will take readings for several days, and then disappear by itself.

In the military sphere, the changes will be even more significant: robots will safely invade enemy territory, reconnaissance UAVs will fly into the airspace of other states more often, and network technologies will become even more widespread on the battlefield.

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