Machine learning & AI

A bio-inspired approach to enhance learning in ANNs

The human brain continuously changes over time, forming new synaptic connections based on experiences and information learned over a lifetime. Over the past few years, artificial Intelligence (AI) researchers have been trying ...

Engineering

3D pen-in-air aims for professional heights

In the 3D marketplace, would a small, lightweight 3D printing pen, enabling doodling in the air with precision, really take off? Here's an indication: a Kickstarter project offering a 3D pen that is small, light and able ...

Robotics

Japanese grocery chain testing remotely controlled robot stockers

Japanese grocery chain FamilyMart has teamed up with Tokyo startup Telexistence to test the idea of using a remotely controlled shelf stocking robot named the Model-T to restock grocery shelves. On its website, Telexistence ...

Energy & Green Tech

Upcycling plastic waste toward sustainable energy storage

What if you could solve two of Earth's biggest problems in one stroke? UC Riverside engineers have developed a way to recycle plastic waste, such as soda or water bottles, into a nanomaterial useful for energy storage.

Robotics

A Moonshot robot is earning marks for sorting trash

Idea hatchers at the Moonshot Factory, Alphabet X, have been busy on an Everyday Robot project and its goal is quite simple. They are keen on "building a robot that can learn to operate in many different situations."

Energy & Green Tech

Marine bioplastic made with fish waste, red algae wins prize

Laura Parker in National Geographic last year: Scientists have tried to get a handle on the amount of plastic that ends up in the seas and harm to birds, marine animals, and fish. .Billions of tons of plastic have been made ...

Energy & Green Tech

Bike-path made from recycled plastic opens in the Netherlands

Officials with the Dutch city of Zwolle have announced the opening of a new bike path made using recycled plastic. The bike path is part of a nationwide effort to recycle more user end products. The bike path was made using ...

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Plastic

Plastic is the general common term for a wide range of synthetic or semisynthetic organic amorphous solid materials suitable for the manufacture of industrial products. Plastics are typically polymers of high molecular weight, and may contain other substances to improve performance and/or reduce costs.

The word derives from the Greek πλαστικός (plastikos) meaning fit for molding, and πλαστός (plastos) meaning molded. It refers to their malleability, or plasticity during manufacture, that allows them to be cast, pressed, or extruded into an enormous variety of shapes—such as films, fibers, plates, tubes, bottles, boxes, and much more.

The common word plastic should not be confused with the technical adjective plastic, which is applied to any material which undergoes a permanent change of shape (plastic deformation) when strained beyond a certain point. Aluminum, for instance, is plastic in this sense, but not a plastic in the common sense; while some plastics, in their finished forms, will break before deforming and therefore are not plastic in the technical sense.

There are two types of plastics: thermoplastics and thermosets. Thermoplastics, if exposed to enough heat, will melt. Thermosets will keep their shape until they are charred and burnt. Some examples of thermoplastics are grocery bags, piano keys and some automobile parts. Examples of thermosets are children's dinner sets and circuit boards.

This text uses material from Wikipedia, licensed under CC BY-SA