# How to Measure a Projectile's Fall With Gravity?

Galileo is credited with being the first to accurately describe projectile motion. Prior to his observations, motion was described by theories influenced by Aristotle. The path of a projectile was ... Read More »
http://www.ehow.com/how_8513365_measure-projectiles-fall-gravity.html

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## How to Measure Specific Gravity of Solids?

Specific gravity is a comparison of a substance's density to that of water. Water's density is 1 gram per cubic centimeter (1 g/cm[3]). The specific gravity of a substance is determined by dividing... Read More »
http://www.ehow.com/how_8161044_measure-specific-gravity-solids.html

## How to Measure Specific Gravity & Salinity?

Determining the specific gravity and salinity of a liquid is often part of the process used by scientists to identify the liquid or the solutes that are suspended in a solution. Both specific gravi... Read More »
http://www.ehow.com/how_8057871_measure-specific-gravity-salinity.html

## How to Measure the Specific Gravity of Materials Lighter Than Water?

You can measure the specific gravity of any material by measuring its density and dividing that by the density of pure water, which is 1 gram per milliliter (g/mL). Scientists define density as the... Read More »
http://www.ehow.com/how_6364561_measure-gravity-materials-lighter-water.html

## Specific Gravity Vs. API Gravity of Hydraulic Oil?

Specific gravity and API gravity are both measurements of density. They both can be used to measure the gravity of a fluid, such as hydraulic oil, in the same way that miles or kilometers can both ... Read More »

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