We all want to trust “the system” when it comes to issues such as potentially toxic chemicals that could affect our health. But new reports about polycarbonate baby bottles are disturbing. Research from the federal National Toxicology Program is said to raise ‘’some concern” about bisphenol A potentially leaching from polycarbonate baby bottles and other products. Rats exposed to the chemical showed disturbing changes, including some linked to cancer. Canadian health officials say bisphenol A may endanger humans and any may ban the substance from baby bottles. Polycarbonate producers such as Sabic Innovative Plastics are referring questions to Dr. Steven Hentges, a polycarbonate expert at the American Chemistry Council. The ACC has released a very guarded statement, which says that the new studies confirm their position that exposure to BPA is negligible. Dr. Hentges calls on the U.S. government to conduct more studies to affirm the safety of BPA. I wonder what Dr. Hentges is telling his family members about use of polycarbonate baby bottles, which are typically exposed to high heat in a dishwasher? I’ll bet he’s telling them to take no chances. Use safer BPA-free alternatives. Why take any chances? There are limits (big limits) to how far we should go to protect our chemical industry.
It’s not clear to what extent there are also health concerns about epoxy resins, which are typically made with bisphenol A and widely used as a coating in food n beverage cans.
A self-propelled robot developed by a team of researchers headed by MIT promises to detect leaks quickly and accurately in gas pipelines, eliminating the likelihood of dangerous explosions. The robot may also be useful in water and petroleum pipe leak detection.
Aerojet Rocketdyne has built and successfully hot-fire tested an entire 3D-printed rocket engine. In other news, NASA's 3D-printed rocket engine injectors survived tests generating a record 20,000 pounds of thrust. Some performed equally well or better than welded parts.
Researchers at MIT's d'Arbeloff Laboratory are developing shoulder- and hip-mounted robotic arms to help workers in aircraft manufacturing perform difficult or complex assembly tasks that would normally require two people.
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