Science of the Week--10/24/14

Here are some of the most interesting science news articles I read this week:

Physicists build reversible tractor beam

 Are male brains wired to ignore food for sex?

Scientists restore hearing in noise-deafened mice

Jewelry that harvests energy from your veins

Soda consumption tied to shorter telomeres, cell aging

3D printed masks offer new hope for facial cancer patients

A "Star Wars" laser bullet--this is what it really looks like

Kung fu stegosaur killed with its spiky tail

Have a good weekend, everyone, and see you Monday!