These special tubes allowed scientists working on the Manhattan Project to study the action of accelerated electrons.

Framed tubes allow fewer interior columns, and so create more usable floor space.

In a woman's body the tube allows passage of the egg from the ovary to the uterus.

These tubes allow drainage of any extra fluids from your chest.

A tube to the surface allowed Henson to breathe.

The tube allows artificial respiration equipment to take over the job of breathing for the patient.

And now even that was darkening as the habitat's light tube allowed night to claim the interior.

In three years, she has largely ventured no farther than the tank's tube will allow.

A 100-foot transparent tube that runs throughout the gallery allows visitors to hear and feel the pulse of circulating blood.

These extra tubes allow for more gain, and thus a more distorted sound.