NASA | Birth of a Space Laser Instrument

The video tutorial discusses the importance of measuring carbon dioxide in the atmosphere, highlighting its role in photosynthesis and global warming. It explains the use of laser instruments for measurement, which can operate both day and night. The tutorial also covers controlled measurement techniques using gas cylinders and the process of data collection and analysis. Finally, it explores future possibilities for carbon dioxide measurement, including potential applications on Mars, emphasizing the synergy between scientists and technologists at NASA.

What is the primary function of trees during the day?

• Absorbing nitrogen

• Releasing oxygen

• Photosynthesis

• Breathing

Why is carbon dioxide considered a concern for the Earth's atmosphere?

• It is a rare gas

• It is invisible

• It contributes to atmospheric warming

• It is lighter than air

What advantage do laser instruments have in measuring carbon dioxide?

• They are portable

• They require no calibration

• They can measure without sunlight

• They are cheaper than other instruments

How do scientists ensure controlled carbon dioxide measurements in the lab?

• Using a small gas cylinder

• Using a large gas chamber

• Using water vapor

• Using natural air samples

What is one of the future goals for carbon dioxide measurement technology?

• To measure carbon dioxide on the Moon

• To use carbon dioxide as a fuel

• To measure carbon dioxide on Mars

• To eliminate carbon dioxide from the atmosphere