How Do Liquid Foams Block Sound?

How Do Liquid Foams Block Sound?

Liquid foams have a remarkable property: they completely block the transmission of sound over a wide range of frequencies. CNRS physicists working in collaboration with teams from Paris Diderot and Rennes Universities[1] have studied how sound is attenuated in liquid...
DNA hydrogel has a long memory

DNA hydrogel has a long memory

21 December 2012 Laura Howes It might look like a pink gloopy liquid to begin with but when you pour Dan Lou’s DNA hydrogel into water it spontaneously reforms into its original shape. Even the Cornell researchers aren’t exactly sure why their new material...