Laser scanning technology could create a 3D digital image of the complete ear. But to work, a headset placed around the patient’s ear during the scan had to be completely immobile.

Imagine being strapped into a large machine, completely immobilized, for an hour while it delivers high doses of radiation to treat your cancer - every day for six months.

Water scarcity as a major threat to national security. Good news: If all U.S. households installed water-saving features, water use would decrease by 30 percent.