Global warming is affecting the size of birds. Free Technical Library News

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Global warming affects the size of birds

16.12.2019

Researchers from the University of Michigan said that global warming is causing birds to shrink in size. Scientists have made such conclusions by studying tens of thousands of birds for 40 years.

Observations have been conducted for 52 species of birds since 1978. During this time, it was possible to measure at least 70 thousand individuals. It turned out that during this time the weight of songbirds decreased by an average of one gram, and the length of the wings increased by several millimeters.

Corresponding changes were recorded in all studied species of birds that migrate through the territory of North America.

Global warming can influence the decrease in mass and increase in the length of the wings, since a direct relationship has been established between the size of warm-blooded living beings and the temperature in their places of residence: the warmer the climate, the smaller the animals in it.

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Processor Cortex-A72 03.02.2015

The British company ARM Holdings introduced a typical processor for mobile devices in 2016 - Cortex-A72. The developer claimed that the Cortex-A72 is the fastest mobile "system on a chip" ever created. It is 50 times faster than the processors in smartphones released five years ago.

Cortex-A72 will run 3,5 times faster than 2014 processors and consume 4 times less power. Higher performance will be provided through a number of microarchitectural improvements and the transition to a new technological norm - 16 nm. The current norm is 28 nm.

The processor will be able to operate at frequencies up to 2,5 GHz. It will be 64-bit.

Primary destinations: Top-of-the-line smartphones, tablet phones, enterprise networking equipment, servers, wireless networking equipment, digital TV, and autonomous driving systems for vehicles.

Cortex-A72 will be able to work on ARM's big.LITTLE technology. It involves combining two processors with different cores to perform tasks of a different plan - for example, executing operating system tasks and running a racing simulator. big.LITTLE will allow Cortex-A72 cores to be combined with Cortex-A53 cores. The accompanying processor runs at a lower frequency and consumes less power to extend battery life.

In addition to the Cortex-A72, the company introduced the CoreLink CCI-500 inter-core technology. It is she who will be responsible for the connection of different types of cores in dual-processor configurations. Compared to the CoreLink CCI-400 technology used today, it offers a 30% faster memory transfer rate.

Growth in performance of smartphones based on ARM architecture in 2014-2016.

Finally, ARM Holdings has announced a new generic graphics controller, the Mali-T880. The company compares it to today's Mali-T760 solution. The indicators are as follows: productivity is 1,8 times higher, energy consumption is 40% lower. Mali-T880 can include from one to 16 cores. The core frequency is 850 MHz. The manufacturing process is similar to Cortex-A72 - 16 nm.

The company notes that the Mali-T880 is well suited for processing complex 3D graphics and 4K content.

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