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Volkswagen e-Golf electric car

25.02.2014

Volkswagen has announced the availability in Germany of an all-electric version of Europe's best-selling car, the Golf hatchback.

The e-Golf is powered by an 85 kW (114 horsepower) electric motor. Torque of 270 Newton meters, transmitted to the front wheels, is available directly from the start. Acceleration from 0 to 60 km / h takes 4,2 seconds, and the car develops a speed of 100 km / h in 10,4 seconds.

Power is provided by a lithium-ion battery pack. It consists of 264 individual cells combined into modules of 6 or 12 pieces. The total battery capacity is 24,2 kWh, and the total weight is about 320 kg. A liquid system is used for cooling. The power plant is aggregated with a single-speed EQ270 transmission equipped with an electromechanical parking brake. The car weighs approximately 1,4 tons.

The manufacturer claims that depending on road conditions and driving style, the e-Golf is capable of covering a distance of 130 to 190 km on a full charge. Top speed is limited to 140 km/h. The e-Golf electronics allows you to use three driving modes. The regenerative braking system with four levels of performance is responsible for recharging the batteries while driving.

Energy costs, as noted, are 12,7 kW per 100 km of track. In monetary terms, this distance will cost the owners of an electric vehicle an average of 3,28 euros.

In Germany, e-Golf prices start at 35 euros.

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Artificial uterus for premature babies 07.05.2017

A plastic container that completely imitates the internal organs of the mother is now being successfully tested on lambs, and they plan to test it on humans within 3–5 years.

The statistics, alas, are sad: among premature babies born at 22-24 weeks of pregnancy, only 10% survive. In addition, these babies have poorly developed vital organs, many of them may develop deafness, blindness or cerebral palsy at first.

Dr. Alan Flake of the Children's Hospital of Philadelphia in the United States, along with his colleagues, has created an artificial womb that will help "carry" a child.

The device reproduces the uterine environment as closely as possible and replaces the function of the placenta. It is a plastic container that is filled with a liquid that mimics amniotic fluid in composition. The baby's umbilical cord is connected to the gas exchange system - it replaces the mother's placenta and supports the baby with oxygen. Unlike incubators, an artificial uterus protects the newborn from infections.

During the experiments, Flake's team placed lambs born at 15-17 weeks (roughly equivalent to human newborns at 21-24 weeks) in an artificial womb. The animals stayed there for 4 weeks, after which they were carefully examined. Test results showed that the lambs had well-formed lungs and brains and were generally healthy.

Alan Flake's British colleagues note that the device he developed can already be called a breakthrough: doctors have been trying to create an artificial uterus for years. However, it is too early to put it into practice - there are several years of laboratory tests ahead. Flake needs to make sure the device is safe for babies. Also, the author of the project wants to slightly modify the device: reduce the size, add several functions and install a camera so that parents can watch how their child develops and feels.

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