- Veena Sahajwalla, a materials scientist at the University of New South Wales,
believes there is a new way of solving this problem. - Her vision is for automated drones and robots to pick out components, put them
into a small furnace and smelt them at specific temperatures to extract the metals
one by one before they are sent off to manufacturers for reuse. - E-waste contains huge quantities of valuable metals, ceramics and plastics that
could be salvaged and recycled, although currently not enough of it is. - She plans to build microfactories that can tease apart the tangle of materials in
mobile phones, computers and other e-waste.
Details
Possible Answer: 3142
- Centuries later formal learning is still mostly based on reading, even with the
widespread use of other possible education-affecting technologies such as film,
radio, and television. - One of the immediate and recognisable impacts of the printing press was on how
people learned; in the scribal culture it primarily involved listening, so
memorization was paramount. - The transformation of learners from listeners to readers was a complex social
and cultural phenomenon, and it was not until the industrial era that the concept of
universal literacy took root. - The printing press shifted the learning process, as listening and memorisation
gradually gave way to reading and learning no longer required the presence of a
mentor; it could be done privately
Details
Possible Answer: 2431
