Glove-echo sounder for work in muddy water

Glove-echo sounder for work in muddy water
To search for objects in the murky waters of Japanese engineers offer with the help they have created innovative IrukaTact gloves with tactile feedback. During rescue operations specialists will be able to feel objects in the water even touching him. A gloved set of ultrasonic sonar MaxBotix, which is located on the inner wrist of the person. Reflected sonar signals pass through the onboard Arduino computer, which activates three micronesica installed on the fingers – at the expense of their work on the silicone fingertips being pressured. Thus, the closer the facility is located underwater to a specific finger, the stronger will be the pressure. It will help a person to “feel” the contours of objects lurking in the murky waters. Currently the area of operation of the sonar in IrukaTac does not exceed 0.6 meters, but the researchers continue their research, hoping to improve the glove and, in particular, to increase the range of its validity. Also according to the developers, their invention will find application in the growing field of virtual reality.
Glove-echo sounder for work in muddy water

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Digital sundial

Digital sundial
One of the first devices to show time served as a sundial. They were a measured circle in the center of which was mounted a rod (gnomon) that casts a shadow. To slightly improve the design came from a French enthusiast by the nickname Mojoptix, who offered the digital version. That’s just the word “digital” does not mean that the watch have any electronic components. The product does not contain any electronics or moving parts and shows the time from 10:00 to 16:00 with an interval of 20 minutes in a digital format. For this purpose, the inventor printed on a 3D printer the gnomon with many different holes. Depending on the position of the Sun in the sky, cast a shadow clock depicting time in the form of numbers. Mojoptix developed two versions – one is designed for use in the Northern hemisphere, the other in the South.
Digital sundial

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