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What is the oldest living creature on Earth? Detailed answer

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Directory / Big encyclopedia. Questions for quiz and self-education

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What is the oldest living creature on Earth?

It was believed that this is a juniper tree growing in California. Its branches reach a height of 30 meters, the crown is 20 meters in girth, and its age is 6 thousand years. However, in 2008, a spruce was found in Sweden, which is 8 thousand years old. Her neighbors are not much younger.

Author: Mendeleev V.A.

 Random interesting fact from the Great Encyclopedia:

How did Edison contribute to the invention of the electric chair?

Inventor Thomas Edison worked on electrification systems for American cities in the 1880s, but he could not transmit direct current beyond a few blocks. His competitor George Westinghouse, with Nikola Tesla as a consultant, made great strides using alternating current. In this "current war" Edison did not shun black PR - to demonstrate the dangers of alternating current, he sponsored the development of an electric execution chair, but Westinghouse's developments eventually won the market.

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Laptop pulse sensor 03.03.2019

Apple Watch smartwatches are famous for their ability to track users' health indicators. There are already a lot of stories on the Web about how an Apple watch saved another life by diagnosing serious heart problems.

It seems that similar sensors may appear in Apple laptops in the future. At least the Cupertino giant is exploring the possibility, as evidenced by the patent. It was filed last year and issued today.

The patent entitled "Portable electronic device having an integrated biosensor" describes the implementation of the same sensor in a mobile PC. Such a sensor could be located to the right of the touchpad, exactly where the user's right hand normally rests when not using the touchpad.

Thus, the sensor can track the user's pulse at almost any time, and the user will not have to think about starting the measurement process again. Considering that the sensor in a laptop can be significantly larger than in a watch, it can be even more accurate.

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