"Chemists have crammed a record nine metals into a type of 2D material called a MXene (pronounced 'max-een'). The distant cousins of graphene have excited researchers because of their high electrical conductivity and other characteristics, which might open the door to designing a multitude of weird but useful substances."
"US health secretary Robert F. Kennedy Jr defiantly defended his controversial actions to upend public health at a Senate hearing yesterday that devolved at several points into a shouting match. Senators grilled Kennedy on turmoil and a leadership shakeup at the US Centers for Disease Control and Prevention (CDC) and on his efforts to scuttle research on mRNA vaccines. In response, Kennedy repeatedly alleged collusion between the pharmaceutical industry and scientists, and cited the high rates of chronic disease in the United States as justification for his agenda."
"From the ochre that the earliest humans used to create cave paintings, to the 'bone black' made from the remains of North America's once-mighty bison herds, environmental writer Stephanie Krzywonos delves into the tangled histories of iconic pigments."
Chemists have synthesized a MXene containing a record nine metals, expanding the family of 2D materials related to graphene. These MXenes exhibit high electrical conductivity and other tunable characteristics that enable designing diverse and unconventional useful substances. US health secretary Robert F. Kennedy Jr defended controversial actions at a Senate hearing, facing questions about CDC turmoil, leadership changes, and efforts to impede mRNA-vaccine research. Kennedy alleged collusion between pharmaceutical companies and scientists and cited high US chronic-disease rates to justify his agenda. Earlier, nine former CDC directors warned about Kennedy's impact. Investigations trace pigment histories from ochre cave paintings to bone black derived from bison remains.
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