#### Transcript of Jobs That Use Pi

By: Jacob Tartamella, Jake Nakfoor, Jacob Frank, Johnny Barth

**Jobs That Use Pi**

**Astronomers use pi**

astronomers us pi to find the volume of newly discovered planets

they do this by doing 4/3 of pi multiplied radius to the third power

**Thanks Wonderful Classmates!**

**Sources Used**

http://lightyears.blogs.cnn.com/2012/03/13/pi-day-how-3-14-helps-find-other-planets-and-more/

Architectural Jobs Use Pi

this kind of job uses pi to find areas of circles and cylinders for buildings

one example of this is the white houses columns

Mathematicians use Pi

mathematicians use pi in their jobs by trying to lengthen the number's digits after the decimal point

for example all the numbers shown after the decimal point in the picture

http://en.wikipedia.org/wiki/Pi

Automotive Engineers use Pi

engineers use pi to find the area of a tire or wheel of a car to find out how much air to put in it

or how much PSI a tire has

Doctors use Pi

specific types of doctors use pi to find their patients blood velocity

they use the formula as shown in the picture

http://en.wikipedia.org/wiki/Blood_flow

**Civil Engineers use Pi**

they use pi to find how big round ducts in buildings need to be to get air through

they do this by using the formula pi multiplied by radius squared(which basically finds the area of the round duct)

http://www.bapihvac.com/CatalogPDFs/I_App_Notes/Determining_Air_Flow_CFM.pdf

Galileo also used pi to calculate distances of stars from Earth, and their orbits

http://www.barcodesinc.com/articles/understanding-pi.htm

The Average Person Can Use pi

The "average person" can use pi to find the size of a pizza

This then helps them to find if this pizza is a better deal than another companies pizza

**Optics Engineers Use Pi**

They use pi for formulas in designing new and improved lenses

They use an equation like the one shown

http://www.newport.com/Optics-Formulas/144956/1033/content.aspx

Fiber Optic Engineers Use Pi

They use this to determine the strength or brightness of a laser beam which is then used for communication in binary code

They use this equation

http://www.physics.rutgers.edu/ugrad/387/laser_2.pdf

Combustion Engineer Uses Pi

They use pi to design the pistons in a car 's engine

They use the equation F=p multiplied by pi times d sqaured divided by 4

http://www.engineeringtoolbox.com/pneumatic-cylinder-force-d_1273.html

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