3D Printing
catdynamics | July 10, 2014A research group at Lawrence Livermore National Laboratory has produced ultrastiff ultralowdensity metamaterials by 3D printing of microarchitected microlattices.
This is very cool - they do additive 3D printing using microstereolithography with nanocoating and postprocessing and can make self-similar lattices with densities varying by several orders of magnitude in bulk density but near constant stiffness.
Construction material can be metal, ceramic or polymer.
LLNL engineered microlattices from Zheng et al Science 344 1373
The lattice geometry can be controlled to choose what mechanical…
milhayser | February 23, 2014Researchers observed tiny voids forming in silicon used for solar panels; these voids provide physical evidence of the Staebler-Wronski effect, "which reduces the solar cell efficiency by up to 15 percent within the first 1000 hours."
Using an online avatar with a skin color other than your own makes you less racist in real life; playing a hero makes you less cruel, and playing a villain less benevolent.
Old mouse muscles exhibit "elevated levels of activity in a biological cascade called the p38 MAP kinase pathway" which prevents stem cells from dividing and repairing muscle damage. By…
esiegel | November 17, 2012“Everything we call real is made of things that cannot be regarded as real.” -Niels Bohr
One of the most amazing recent technological innovations is the advent of 3D Printing, where any shaped or textured object can be accurately reproduced with the right software and printing materials. The things that I've seen made so far have been so creative that I thought the right song to take you through what I'm about to show you is Ween's upbeat (and amusing) song,
Voodoo Lady.
Over at the fantastic do-it-yourself website, Instructables, they're currently having a competition called Make it Real,…