Tissue elasticity can be detected using a scanning acoustic microscope (SAM), whereby acoustic images are created from the speed of sound through tissues. This system discriminated pulmonary tissue ...

So, Amazon released a new product scanning device called Flow. You know the idea. You point it at a product or a bar code the camera does a scan or snaps a photo and you get competitive prices back.

Correction: it's the sound of the flyback transformer vibrating. And yes, it bugs me - I have to turn the TV off immediately if someone else forgets to turn it after they finish watching it.