lungs necklace | silver pp_protein The rings are remarkably young

The rings are remarkably young in geological terms: Cassini measurements suggest they may only be 10 to 100 million years old

The silver version is the working astronomer's piece

cell-body summation

The signal spreads through both atria

lungs necklace | silver pp_protein The rings are remarkably youngLungs necklace sterling silver The lungs are air exchange machines built for efficiency. About 480 million alveoli in each pair, with a surface area of roughly 70 square metres. Oxygen in, carbon dioxide out. A 21 mm sterling silver pendant centred at the chest. The Science Behind the Lungs Adult human lungs have a total volume of approximately 3 litres and contain roughly 480 million alveoli for gas exchange. The bronchial tree branches from the