Month: March 2021

Enlarge (credit: Lori Oberhofer/NPS)

In addition to being home to men with questionable decision-making skills, Florida also seems to have some issues with bizarre animal behavior, whether it's freezing iguanas dropping from trees or alligators battling pythons in the Everglades. When it comes to those animals, however, Floridians can truly put the blame on non-natives. Neither pythons nor green iguanas made the sunshine state their home until we brought them there as pets.

In fact, there are lots of problematic invasive species that have spread through the pet trade, from predatory fish that can drag themselves between bodies of water to a crayfish that clones itself to reproduce. Those high-profile cases lead to some obvious questions, like whether pets really are more likely to be invasive and, if so, why?

Two Swiss researchers, Jérôme Gippeta and Cleo Bertelsmeier have now attempted to answer these questions. And their conclusion is that yes, our pets are more likely to be problems.

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  Ford has been using 3D printing for prototyping and other design and engineering work. But 3D printing does not lend itself well to mass-produced parts. [credit: Ford ]

Slowly but surely, car companies are beginning to make themselves more sustainable. We most often hear about this in the context of using clean energy to power the production lines and assembly plants that put together new electric vehicles, but it shows up in smaller examples, too. Take Ford, for example. Working with HP, it has come up with a use for plastic waste left over from 3D printing, which it's now using to make truck parts.

Like many automakers, Ford has been getting more comfortable with additive manufacturing. 3D printing lends itself well to producing low-volume parts that would otherwise be too expensive to make due to the cost of creating tooling. But in this case, some of those printed bits will actually end up in production vehicles—sort of.

Ford, working with HP (which supplies the Blue Oval with some of its printers), has started recycling 3D printed parts and powder and is using the plastic to make fuel clips for the F-250 truck. The waste plastic, along with similar waste from the dental company SmileDirectClub (which apparently has 60 3D printers making 40,000 aligners a day), gets sent to a company called Lavergne that turns it into plastic pellets that can then be used in injection molding machines. Those pellets are then used by one of Ford's suppliers, ARaymond, to make the fuel clips.