Идея находится на модерации.
Researchers from the University of Pennsylvania believe that they have managed to create a cheap biomaterial, which can be used as a replacement for different kinds of plastic, including one which is used in packaging and building materials. The use of such substitutes may reduce the dependence of mankind from plastics, and, accordingly, to reduce further pollution of our planet. +
This fully biodegradable material, part of a group of polysaccharide polyelectrolytes, consists of nearly equal parts of cellulose (or CMC), and chitosan, derived from chitin - the main ingredient of the shells of arthropods and crustaceans.
According to project leader Professor Jeffrey Ketchmark, this environmentally friendly material has many useful properties, and it is possible to create absolutely different products – from water-resistant cardboard to floor and wall tiles.
"Such unexpected strength and adhesive properties of the material may be useful for packaging, and creating a variety of building materials. At the same time, it's even possible is, because it consists entirely of natural ingredients that we use as food additives," explains the scientist.
Potentially, the replacement of such plastic material, can make a huge difference for the planet, which is now literally covered in a layer of plastic bags and bottles.
Today, world production of plastic approaching 300 million tons annually. About 10% of all produced in the world of plastic products is ending up in the ocean, about 30% is recycled, and the remaining 60% are in landfills, where centuries will poison land, water and air.
And polysaccharide polyelectrolyte complex coating already managed to prove themselves well: for example, cardboard coated with such a biomaterial that demonstrates resistance to oils and water. This coating also withstands the solutions of toluene, heptane, and various salts. In addition, it possesses excellent mechanical and strength characteristics.
According to Professor Ketchmark already filed the patent for his invention, an innovative biodegradable material can easily compete with synthetic materials, which are, for example, for the manufacture of substrates for laminate of polystyrene foam and solid plastic materials used for the production of disposable utensils and bottles.
"I set myself the task to create not just a material that could substitute plastic. I had to invent something that would be just as cheap as plastic. Otherwise, none of the producers do not want to use this material. Now consumers may receive the choice to use in your life items from biodegradable substances, which can be easily recycled, or without harm to nature simply bury it in the ground. Or they can continue to use plastic, which hundreds, and perhaps thousands of years to swim in the oceans".
The company Knightscope, which is known for its robotic security guard K5, has introduced a new model – a stationary boat K1 and the four-wheeled bike K7, writes The Verge.
Rover K7, a height of 1.5 meters and a length of almost 3 meters, designed for patrolling the rugged terrain of the lawns, gravel areas, beaches. Its speed is limited to 5 km/h, but the robot is able to move much faster.
As K5, it moves autonomously, but has a set of sensors and cameras that transmit audio and video to the operator. K1, meanwhile, is not moving, but the technology uses millimetre waves to scan the visitors for the presence of metal objects. In Knightscope say that the K1 performs better than the frame-detector scanner. The robot can be useful in hospitals and airports.
From left to right: stationary scanner metal K1, street K5 patrol robot, patrol robot for indoor K3 and Rover to patrol the rugged terrain K7.
Long-standing rumors that the company Razer is developing its own mobile device, finally gained ground. For the first time about this possibility talking after Razer acquired the company Nextbit, create a "cloud" smartphones Robin. However, any hints on what the device will do the Razer, have been reported. Until recently. Recently the company's CEO Min-Liang tan said that the new device will be designed for gamers.
"The most common rumor about Razer says that we are going to create a device — said Min-Liang tan. Well, I can say that about something similar we really are working, and our target audience will be gamers. <...> We hope to release a device before the end of this year. Work is in full swing".
Unfortunately, more specific data CEO of Razer is not provided. However, based on his words, we can assume that the company is developing a gaming smartphone, tablet, mini-PC or even a portable console. As Razer is, according to tan, is planning to expand its influence and open up new markets, it will be no surprise if she sets foot on this territory. But while this is only speculation. As is the case in fact will be known by the end of 2017.