Scoliosis is a lateral (toward the side) curvature in the normally straight vertical line of the spine. When viewed from the side, the spine should show a mild roundness in the upper back and shows a degree of swayback (inward curvature) in the lower back.
April 3, 2003 marked the 30th anniversary of the first public telephone call placed on a portable cellular phone. Martin Cooper (now chairman, CEO, and co-founder of ArrayComm Inc) placed that call on April 3, 1973, while general manager of Motorola's Communications Systems Division.
Following the April 3, 1973, public demonstration, using a brick-like 30-ounce phone, Cooper started the 10-year process of bringing the portable cell phone to market.