Vlad Soukhovei, John Marcantonio, Kara Bongiovanni, Eric James, Sean Rivera,

Daniel Flora

11/02/10

Fall 2010 LRR

11-02-10

Ascend to 30 km, collecting data regarding temperature, air density, sound

Compare air density to sound to confirm expected relationship

Compare amounts of Carbon dioxide with sound data

Hypothesis: air density goes down=frequency increases, amplitude decreases

Large amounts of carbon dioxide result in new recorded frequencies

Why? Use sound as means of detecting gas

-As air density decreases due to altitude, frequency of sound will increase

-As air density decreases, amplitude will decrease

-Pitch will decrease with an increase in carbon dioxide percentage in ambient air

BalloonSat is overweight Difficulty extracting sound data due to

outside noise Identifying a correlation between carbon

dioxide levels and sound data

Requirement Result

BalloonSat internal temperature shall remain above -10 degrees Celcius

Confirmed by cold test

BalloonSat shall not exceed 850 grams

BalloonSat is currently overweight (app. 940 g)

Budget shall not exceed $300.00 Budget is currently at $283.97

Materials/Components (HOBO, foam core, temp probes, flight string/tube, camera, scientific experiment, flag,heater)

All necessary components are accounted for