Electronics Puzzler: Greenhouse Gas

By: Forrest M. Mims III
Greenhouse Gas

How can you measure the most important greenhouse gas?

Remove the water vapor from our atmosphere and Earth would be considerably cooler. This is why water vapor is the number one greenhouse gas. Science teacher Bob Celsius wants to show his students how to measure the total amount of water vapor in the sky overhead.

What electronics instrument did Bob Celsius select?

Puzzler Hint:
The key word is temperature.

Click here for the puzzler solution >>