It’s marshland vs. ocean on the Gulf Coast of Louisiana. thumbnail: http://svs.gsfc.nasa.gov/vis/a010000/a011000/a011042/7-Loveland-1-Pecan_series_gal.png

STELLA: A DIY Handheld Scientific Instrument
If you are looking for a do-it-yourself (DIY) handheld spectrometer, you need to meet STELLA. STELLA (Science and Technology Education for Land/Life Assessment) is a portable scientific instrument developed by