Robotics

These new soft actuators could make soft robots less bulky

Engineers at the University of California San Diego have developed a way to build soft robots that are compact, portable and multifunctional. The advance was made possible by creating soft, tubular actuators whose movements ...

Energy & Green Tech

Harnessing sunlight to pull hydrogen from wastewater

Hydrogen is a critical component in the manufacture of thousands of common products from plastic to fertilizers, but producing pure hydrogen is expensive and energy intensive. Now, a research team at Princeton University ...

Energy & Green Tech

An effective and low-cost solution for storing solar energy

How can we store solar energy for period when the sun doesn't shine? One solution is to convert it into hydrogen through water electrolysis. The idea is to use the electrical current produced by a solar panel to 'split' water ...

Hi Tech & Innovation

Dry ice could prevent rail delays caused by 'leaves on the line'

Researchers from the University of Sheffield, in collaboration with Icetech Technologies, have used dry ice to develop a new solution to the problem of leaves on the line, which cause delays, cancellations and timetable changes ...

Energy & Green Tech

How do solar panels work?

How do solar panels work? – Nathan, age 5, Melbourne, Australia.

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Electric current

Electric current is the rate of flow of electric charge. The electric charge that flows is carried by, for example, mobile electrons in a conductor, ions in an electrolyte or both in a plasma.

The SI unit of electric current intensity is the ampere. Electric current is measured using an ammeter.

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