Amyotrophic lateral sclerosis (ALS), sometimes called Lou Gehrig's disease, is a rapidly progressive, invariably fatal neurological disease that attacks the nerve cells (neurons) responsible for controlling voluntary muscles.
The Alpine Scheitholt furnishes an example of this older type of European zither. By the late 18th century, two principal varieties of European concert zither had developed, known as the Salzburg zither (with a rounded side away from the player), and the Mittenwald zither (with both sides rounded).
Because the material is continuous, seamless gutters lack joints, fasteners or other openings to let in as much debris as traditional gutters. Types of Seamless Gutters. There are a few types of seamless gutters including aluminum, copper, vinyl and steel. Here is a breakdown of the characteristics of each type of seamless gutter: Aluminum Seamless Gutters. Aluminum is the most popular choice of homeowners who install seamless gutters. Aluminum is durable, economical, and easy to bend and shape.