CALCIUM carbonate can exist in three polymorphic forms, which in the order of their usual stabilities are calcite, aragonite and vaterite. Calcite is the most stable and the least soluble, and ...

That arrangement would have allowed year-round farming. They also searched local sediments for pollen and phytoliths—microscopic silica structures that form in many plant tissues. The pollen and ...

This is a recently acquired accoutrement that has not gone unnoticed by fans since he embarked on a publicity tour for his new book, The Sirens’ Call, about how tech companies have precipitated ...

“The new business line is a strategic step by Evonik to strengthen the financing power of our complementary Silanes, precipitated and fumed Silica technology platforms,” stated Lauren Kjeldsen, ...

My Crocs lost purchase on the vestal slurry carpeting the sidewalk. One foot slid forward while the other slid back, and I felt the entirety of my life with functioning hip abductors flash before my ...

For instance, given the crucial role of the silica gel in CaP formation during BG dissolution, uncertainty exists about how such a silica gel forms on the BG surface. In the case of CaP formation ...

The project, led by the University of Rochester and published in Proceedings of the National Academy of Sciences, was inspired by the enzymes secreted by sea sponges that help them grow glass-like ...

Why is gravity so much weaker than the other fundamental forces? A small fridge magnet is enough to create an electromagnetic force greater than the gravitational pull exerted by planet Earth. One ...

When the PBR value is between 1 and 2, the oxide film is protective (Bradford 1993; Tan et al., 2016; Song et al., 2021). Magnesium is active, so the α-Mg matrix and precipitated phases in magnesium ...

Grasses accumulate silicon in the form of silicic acid, which is precipitated as amorphous silica in microscopic particles termed phytoliths. These particles comprise a variety of morphologies ...