QSFP28 modules use MPO or LC connectors for 100Gbps transmission. QSFP+ modules use MPO or LC connectors for 40Gbps transmission. Copper transceivers use RJ-45 connectors for up to 100m distances
Both fog and mist form from water condensation due to temperature drop. Fog appears near ground level, mist forms when warm air meets cold air. Fog has 5-6 types, mist has no specific types. Fog is most common in winter morning, mist in mountains and forests
Beer-Lambert law relates light attenuation to material properties. Absorbance (A) is measured as logarithm of ratio of incident to transmitted intensity. Absorbance ranges from 0 to 1, with 0 indicating no light absorption
Bioluminescence is light emission by living organisms through chemiluminescence reactions. Requires luciferin and luciferase enzymes catalyzing oxidation of luciferin. Occurs in diverse organisms from marine vertebrates to terrestrial arthropods. Coelenterazine pigment found in 11 animal phyla, luciferases vary widely
Ozone layer absorbs 97-99% of Sun's UV radiation in stratosphere. Located between 15-35 kilometers above Earth. Contains less than 10 parts per million ozone compared to atmosphere's average 0.3. Created by UV light splitting oxygen molecules into ozone
Bioluminescence is light production by living organisms through chemical reactions. Requires luciferin, luciferase enzyme, and oxygen for chemical reaction. Produces "cold light" with minimal heat generation