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Sunscreen for astronauts

03.08.2020

The development of means for protection against radiation is one of the most priority areas of research in the space industry.

By synthesizing a new form of melanin enriched with selenium, a team of American chemists has developed a biomaterial called selenomelanin that could protect human tissue from ultraviolet radiation.

During laboratory experiments, cells treated with such a "cream" showed normal life processes even after receiving a lethal dose of radiation. Tests have shown that the human body can produce selenomelanin on its own if the cells receive certain nutrients.

Melanin samples are currently on the International Space Station, where a research team is studying the material's response to radiation exposure. Recently, studies have been conducted with pheomelanin containing sulfur, however, according to scientists, the new substance is easier to synthesize.

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Long-playing smartphone TCL-P618L 01.05.2015

The Chinese manufacturer TCL has released a smartphone TCL-P618L with a 5000 mAh battery that provides the device for three months.

Introducing the device, the manufacturer called it "the longest-playing smartphone in the world." It has a built-in battery with a capacity of 5000 mAh, which, according to the manufacturer, provides the smartphone with three months (90 days) of standby time on a single charge.

The smartphone uses a 5-inch AMOLED display with Gorilla Glass 4 coating. The thickness of the device is 9,15 mm.

The novelty is running Android 4.4, is built around a Snapdragon 410 quad-core processor, has 1 GB of RAM and 8 GB of storage and supports MicroSD memory expansion cards up to 32 GB. The device has a 13MP camera (and a second 5MP camera on the front of the device) and a dual SIM slot.

In early May 2015, the TCL-P618L will enter the Chinese market, but will only be available to China Telecom subscribers. It is expected that the retail price will be 1690-2000 yuan, which is equivalent to $270-$320.

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