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10" Fujitsu Arrows Tab Wi-Fi FAR70B

08.02.2013

Fujitsu announced the release of a new tablet computer - Arrows Tab Wi-Fi FAR70B. The novelty will go on sale in the home market starting February 15, but its price has not yet been announced.

From a consumer point of view, the Arrows Tab Wi-Fi FAR70B is an extremely interesting device: it is built on a high-performance NVIDIA Tegra 3 single-chip system (CPU clock speed - 1,7 GHz), equipped with a high-quality 10,1-inch diagonal display with a resolution of 1920 x 1200 pixels, battery large capacity battery (10 mAh) and reinforced body. The latter provides protection against ingress of dust and moisture in accordance with the requirements of IPX080 and IPX5 standards.

The developers endowed the device with 2 GB of RAM and 32 GB of internal flash memory, as well as two cameras (the resolution of the main one is 8,1 megapixels, the front one is 1,3 megapixels), a slot for microSD memory cards, Wi-Fi 802.11a wireless adapters /b/g/n (2,4 and 5 GHz) and Bluetooth 4.0, GPS receiver. The list of product features also includes a fingerprint sensor, a Micro-USB port with MHL support and a standard headphone jack.

Dimensions Arrows Tab Wi-Fi FAR70B - 259 x 169 x 9,9 mm, weight - 589 grams. The battery life claimed by the manufacturer is 14 hours when playing video, 75 hours when listening to audio files and almost three months in standby mode. As for the operating system, Android 4.0 is preinstalled on the tablet.

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The film absorbs sweat and charges the gadget 04.01.2021

A team of researchers from the National University of Singapore (NUS) has created a new film that absorbs sweat from our skin very effectively to keep us cool and comfortable during exercise. The moisture obtained from human sweat can be used to charge wearable electronic devices: watches, fitness bracelets and other gadgets.

Sweating is a natural process of thermoregulation of our body. Sweat is mostly water. When water evaporates from the surface of the skin, it lowers the temperature of the skin. The new moisture-absorbing film helps make this process faster. And use it to get energy for electronic devices.

The main components of the film are two hygroscopic chemicals - cobalt chloride and ethanolamine. In addition to being very absorbent, this film can rapidly release water when exposed to sunlight. It changes color after absorption of moisture from blue to purple and - further - to pink. This function can be used as an indicator of the degree of moisture absorption.

Conventional hygroscopic materials such as zeolites and silica gels have low water absorption and bulky solid structures, making them unsuitable for absorbing moisture from sweat evaporation. By comparison, a new moisture-wicking film developed by NUS researchers absorbs 15 times more moisture and does so six times faster than conventional materials.

To make full use of the absorbed sweat, the NUS team has also developed a wearable energy harvesting device consisting of eight electrochemical cells (ECs) using a new film as an electrolyte. Each cell can generate about 0,57 volts of electricity when it absorbs moisture. The total energy collected by the device is sufficient to power the LED.

The NUS team packaged the film in flexible, breathable and waterproof polytetrafluoroethylene (PTFE) membranes, which are widely used in clothing. Testing has shown that the film can be sewn into underarm pads and shoe insoles to eliminate sweat odor. Scientists have already created a prototype of such an insole (pictured). In addition, the innovative film can be replayed and reused over 100 times.

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