The SuperBot is a set of robotic modules that form and reform linear or solid shapes, such as this walking humanoid form. Developed for possible use by NASA in planetary exploration, SuperBot can walk, crawl, climb, and carry things depending on its form.
Rob, I think you may be right about the generational aspect. Although it's also true that any company doing its duty as a corporate citizen publicizes its good deeds, and sustainability sells. I don't see anything wrong with all that. But that doesn't imply that a company is only being sustainable for PR purposes, which some commenters have implied in past discussions about green anything. Some companies, such as DuPont, have places sustainability at the core of their corporate values.
Yes, I agree, Ann, that many companies are now serious about sustainability. While this movement in corporate culture may have originated in the PR discipline, many companies now have sustainability executives whose mission is more than just an effort to give their company a public facelift. It's good to see.
Plastic bags can become useful as either raw materials for plastics or feedstock for fuel. It's when they're not recycled that they become a major problem. That's what California's bag ban will prevent.
NASA's JPL and Caltech have achieved the mind-boggling feat of 3D printing multiple metals in a single end-part, grading from one alloy to another. They've also developed a method for combining metals with carbon fiber composites in end-production parts.
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