A new, objective, science-based way to measure the total nutritional quality of foods and beverages has been devised by scientists and is called the Nutrient-Rich Foods (NRF) Index.

Teaching Density Density is mass divided by volume. d=m/V or ρ=m/V But what does that mean? The simple answer is how heavy something is for its size. If something seems very heavy for its size (like a ...

WHAT: The Nutrient-Rich Foods (NRF) Index is a new, objective, science-based way to measure the total nutritional quality of foods and beverages.

The dots above (representing molecules) show one reason why one material has more or less density than another. Can you see how the molecules of the densest material, water, are more closely ...

Memories are not held in their entirety in the brain like old movie clips, but are maintained as a kind of chemical residue of the original perception. From this residue, something presumably ...

The U.S. should renew its investments in high energy density science facilities and workforce capacity and improve collaboration, in order to achieve advances in areas such as fusion power and ...

Researchers have combined injections of a novel hydrogel with systemic osteoporosis drugs in rats, achieving rapid local increases in bone density. The results offer hope for future fracture ...

Let's join our friends at Chevron for this week's Science Sunday and a demonstration in density.