science_202

unit05

 

The Bends (Decompression Syndromes)

 

Scott D. Fell, Charles Patrick Davis – emedicinehealth.com

This article explains how Decompression Syndrome from scuba diving occurs.  It compares a diver coming to surface too quickly to a pop can being opened.  The bubbled that are compressed in the tissue of the diver expand and are released as the diver comes to the surface.  If the diver surfaces too quickly the rapid release of bubbles can cause health problems.

 

 

Air Pressure Experiment

This video shows an experiment which shows the correlation between temperature and pressure. The lower the temperature the lower the pressure and the higher the temperature the higher the pressure.

 

 

 

 

The Sci Guys: Science at Home – SE2 – EP2: Air Pressure Can Crush – Can Implosions

The experiment in this video is similar to the “pressure fountain demo” from class.  The pressure in the can rapidly decreases and the can is crushed by the pressure of the air around it.

 

 

 

 

Atmospheric Pressure: Definition & Facts

 

August 29, 2013, Joe Rao – livescience.com

This article explains how air has weight and how the atmosphere is an ocean of gas.  Its easy to think of he atmosphere as if it it nothing, a vacuum, but its not.  Its important to understand the pressure out atmosphere has on us and how it changes.  

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