The 3D printing revolution brings with it a harmful side effect: the special inks that it uses are derived (for the most part) from environmentally-unfriendly processes involving fossil fuels and toxic byproducts. But now scientists at Chalmers University of Technology have succeeded in using cellulose – the most abundant organic compound on the planet – in a 3D printer. They were also able to create electrically-conductive materials by adding carbon nanotubes.
The Réinventer Paris competition was conceived to promote new architectural ideas for the city's future, and provided the impetus behind Planning Korea's L’air Nouveau de Paris and Vincent Callebaut's 2050 Paris Smart City. A new entry, by Michael Green Architects, imagines the world's tallest wooden building for the city.
Wood pulp-derived nanocellulose is turning out to be pretty useful
stuff. Previously, we'd heard how it could be used in things like high-strength lightweight composites, oil-absorbing sponges and biodegradable computer chips.
Now, researchers from Sweden and the US have used the material to build
soft-bodied batteries that are more shock- and stress-resistant than
their traditional hard counterparts.
As electronic devices are becoming outdated at an increasingly fast pace, e-waste continues to be a huge problem.
That's why scientists from the University of Wisconsin-Madison have
started producing "wooden" semiconductor chips that could almost
entirely biodegrade once left in a landfill. As an added bonus, the
chips are also flexible, making them prime candidates for use in
In tropical countries such as the Philippines, there are plenty of rice
husks ... and also plenty of termites. A group of engineering students
from the University of California, Riverside, recently decided to use
the former to address the latter, by creating termite-resistant
particleboard from rice husks.