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Tuning forks on resonators. (2012, May 8). YouTube. Retrieved July 26, 2014, from https://www.youtube.com/watch?v=E_ZBELcyb3g.
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What is high blood pressure?. (2012, August 2). NIH - National Heart, Lung, and Blood Institute. Retrieved July 23, 2014, from http://www.nhlbi.nih.gov/health/health-topics/topics/hbp/.
WIKA - When to use diaphragm seals. (2013, February 18). YouTube. Retrieved July 26, 2014, from https://www.youtube.com/watch?v=vn__GM3pcq4.
Bigler, M. (n.d.). Manometer online lesson. Mr. Bigler's Moodle Site. Retrieved July 25, 2014, from http://www.mrbigler.com/moodle/mod/lesson/view.php?id=1942.
Bourdon tube operation. (2012, September 27). YouTube. Retrieved July 25, 2014, from http://www.youtube.com/watch?v=cq7g3FTsUbY.
Elfick, J. (2014, July 22). UNPh12. School Science Lessons. Retrieved July 25, 2014, from http://www.uq.edu.au/_School_Science_Lessons/UNPh12.html#12.2.1.
Gauges, Sight Glasses, Vacuum breakers. (n.d.). Spirax Sarco. Retrieved July 25, 2014, from http://www.spiraxsarco.com/resources/steam-engineering-tutorials/pipeline-ancillaries/gauges-sight-glasses-vacuum-breakers.asp.
Griffith, J. (n.d.). Laboratory 10. J. Griffith Science Courses. Retrieved July 25, 2014, from http://www.cvsd.org/university/classpage/jgriffith/pages/AP%20Items/Labs/10%20-%20Physiology.htm.
How a Bourdon pressure gauge works -- Explore the known. (2013, June 15). YouTube. Retrieved July 25, 2014, from https://www.youtube.com/watch?v=-9IfpNAESlM.
Human performance capabilities . (n.d.).Man-Systems Integration Standards.. Retrieved July 26, 2014, from http://msis.jsc.nasa.gov/sections/section04.htm.
Infographic: Blood pressure. (n.d.). National Heart, Lung, and Blood Institute. Retrieved July 24, 2014, from http://www.nhlbi.nih.gov/health/health-topics/images/infographics_blood_pressure_rev.jpg.
John. (2013). Pressure transducer - Pressure measurement, sensors, types, selection, calibration. Instrumentation Today. Retrieved July 23, 2014, from http://www.instrumentationtoday.com/pressure-transducer/2011/09/.
Netting, R. (2003, November 22). It's a breeze. Earth Science Enterprise. Retrieved July 24, 2014, from http://kids.earth.nasa.gov/.
Simple bellow elements. (n.d.). Simple Bellows Elements. Retrieved July 26, 2014, from http://enginemechanics.tpub.com/14105/css.
The aneroid barometer. (1990.). Bureau of Meteorology, Commonwealth of Australia. Retrieved July 26, 2014, from http://www.bom.gov.au/info/aneroid/aneroid.
Tire pressure. (2013.). Firestone Complete Auto Care. Retrieved July 24, 2014, from http://www.firestonecompleteautocare.com/tires/tirepressure.jsp.
Tuning forks on resonators. (2012, May 8). YouTube. Retrieved July 26, 2014, from https://www.youtube.com/watch?v=E_ZBELcyb3g.
Under pressure. (2013). Borderless News and Views. Retrieved July 23, 2014, from http://borderlessnewsandviews.com/2013/08/under-pressure/.
Understanding blood pressure readings. (2012, April 12). American Heart Association. Retrieved July 23, 2014, from http://www.heart.org/HEARTORG/Conditions/HighBloodPressure/AboutHighBloodPressure/Understanding-Blood-Pressure-Readings_UCM_301764_Article.jsp.
Welcome to Apple Valley Eye Care. (n.d.). Apple Valley Eye Care. Retrieved July 23, 2014, from http://aveyecare.com/visiontech.html.
What is high blood pressure?. (2012, August 2). NIH - National Heart, Lung, and Blood Institute. Retrieved July 23, 2014, from http://www.nhlbi.nih.gov/health/health-topics/topics/hbp/.
WIKA - When to use diaphragm seals. (2013, February 18). YouTube. Retrieved July 26, 2014, from https://www.youtube.com/watch?v=vn__GM3pcq4.