Two hot news, go to gmic today to see beauty

GMIC2015 Beautiful hot pot Too many (see the last), has been flashing blind, watch let you in pure heart.

12 g robot can drag a big blue whale, the manpower will really be replaced

The Verge News, Stanford engineers invented a miniature robot microtugs, which can pull and lift more than 100 times times its own weight items. One of the strongest robots weighs only 12 grams, but can pull up to 2000 times times more items, which is equivalent to a person being able to drag a large blue whale.

engineers have also invented robots that can climb walls, which weigh just 9 grams, but can pull up to a kilo of items when crawling on walls , which is equivalent to a person lifting an elephant on the side wall of a building. Even with a minimum weight of only 20 mg of robots, engineers need tweezers to assemble them under a microscope, which can pull up to 25 times times heavier than their own.

Scientists hope that it will be used in a wide range of scenarios in the future, such as large robots that can move large cargo at factories and construction sites, and special robots that can be transported by climbing walls to the trapped crowd during emergency relief, especially for building fires.

Another message is about a wonderful bug in Apple Watch, where the skin is too dark or someone with a tattoo is not suitable.

Theverge, an American science and technology news website, points out that for young people who hesitate to tattoo their arms, they have another reason not to tattoo: This may not be "compatible" with an Apple Watch.

It is analyzed that tattoos affect the heart rate monitoring of Apple Watches, and how heart rate monitoring works.

Apple Watch uses the industry's most commonly used photoelectric measurement method, which is known as the photoelectric volumetric pulse waveform (photoplethysmography, or PPG). In short, when the heart beats, the body blood vessels will have a small fluctuation of the principle, a beam of light to the human wrist, and the camera to observe the reflection of the shadow. If there is a slight change in it, the heart beats once.

However, tattoo pigments often contain substances such as mercury, copper, and nickel that interfere with the work of the Apple Watch sensor. Therefore, the result is inaccurate, function failure and so on.

This is not true, Apple said, if your skin is darker, you will likely encounter similar problems.

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Two hot news, go to gmic today to see beauty