Congratulations to humanity for contaminating sea salt! A new study found all but one of 17 commercial sea salt brands from eight different countries contained microscopic plastic particles. Microplastic: it's what's for dinner!
Out of the 72 extracted particles, 41.6% were plastic polymers, 23.6% were pigments, 5.50% were amorphous carbon, and 29.1% remained unidentified. The particle size (mean ± SD) was 515 ± 171 μm. The most common plastic polymers were polypropylene (40.0%) and polyethylene (33.3%). Fragments were the primary form of MPs (63.8%) followed by filaments (25.6%) and films (10.6%).
It's OK, though, because we can eat 37 of these a year without incident, or so they say.
• The presence of microplastics in commercial salts from different countries (Nature via TreeHugger)
The Action Lab set up an interesting proof of concept using a smartphone plus a cheap radio frequency 3D imaging doo-dad to sense motion in another room.
The guys from Waterjet Channel took a request from a Minecraft fan who wanted to see them cut an obsidian cube, even supplying the obsidian. They also made some super-thin batarangs that could almost be used as sunglass lenses.
SoCraftastic tested six marker types on a non-porous surface to see which one allowed the ink to float on water. The effect is pretty cool with a stick figure.
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