Essays Tagged: "Compressed air"

Snorkeling and Scuba Diving

, normally in shallow water. Scuba diving is going to the bottom of an ocean or lake breathing with compressed air, to see what interesting things can be found. Both are fun and educational. Snorkelin ...

(2 pages) 48 0 4.0 Apr/2002

Subjects: Humanities Essays > Health & Medicine > Sports

Sources work on the enigma machine.

planted at Bletchley Park. This was exaggerated by having to use tubes to send messages, forced by compressed air, from hut to hut. There are no weaknesses in this source. It is a secondary source bu ...

(5 pages) 28 0 3.7 Nov/2003

Subjects: History Term Papers > European History

A text on decompression sickness, it's cause and cure in a discriptive text including live interactions with subjects. sources are reliable.

underwater breathing apparatus. When using SCUBA equipment, a diver breathes from a tank that holds compressed air.S.C.U.B.A diving is different from holding your breath and diving. When we are living ...

(1 pages) 16 0 3.0 Jan/2004

Subjects: Science Essays > Chemistry

The Respiratory System

s and air embolism. Second, because it helps explain the one process vital to every dive: breathing compressed air under water. If you already feel comfortable with basic anatomy and physiology of the ... re environments nitrogen is of no consequence. Nitrogen takes on critical importance when breathing compressed air under water.) The remainder of the air is made up of some rare inert gases, such as a ...

(11 pages) 115 1 4.2 May/2004

Subjects: Humanities Essays > Health & Medicine

Condiment Diver

t that things denser than water will sink and things not as dense as water will float. In addition, compressed air is denser than water therefore, when squeezing the bottle the packet becomes less den ... tion is, air is compressible and water is not. When the bottle is squeezed, it causes the air to be compressed as a result the packet sinks. When releasing the squeeze on the bottle the air is no long ...

(2 pages) 15 0 0.0 Oct/2004

Subjects: Social Science Essays > Education

Masks at work.

t they offer the highest level of protection against fine airborne dust.Cleaning is often done with compressed air and this may move spots of grease into the air, which would be very harmful if they w ... air is supplied from an out side source at high pressure. The mask is usually a full-face mask or a compressed air hood.

(2 pages) 15 0 0.0 Dec/2005

Subjects: Businesss Research Papers > Management

All About Metal-Cutting Machines

t sheet materials or to remove the materials from a surface. They can also use pressurized water or compressed air. This special machine can cut more difficult metals, leaving minimal amount of burrs ...

(2 pages) 38 0 3.0 Mar/2006

Subjects: Science Essays > Engineering > Electrical Engineering

U-boats During World War II

apon of the U-boats was the torpedo. During World War IIGerman submarines used torpedoes powered by compressed air, and later used electric models that left no sign of bubbles. An 88-mm naval deck gun ...

(1 pages) 1001 0 5.0 Feb/2002

Subjects: History Term Papers > World History > World War II