Answer to Question 1
pulsar wind
Answer to Question 2
Photographic plates can detect faint objects in long time exposures and can be stored for later analysis. Electronic cameras exploit CCDs which are specialized computer chips containing millions of light detectors arranged in an array. These CCDs are more sensitive than photographic plates and, unlike photographic plates, they can detect bright and faint objects in a single exposure. CCD images are digitized, so they can be stored for later analysis, like photographic plates, but the data is easier to manipulate using a computer when it is digitized.
Excitation of isolated chlorophyll by light.
The thermodynamics of protein folding depicted as a free-energy funnel
Metabolic pathways involved in lipolysis, the breakdown of fats (triglycerides) for energy.
Cuba’s Energy Geopolitics
Energy pyramid
Energy flow in the light-dependent reactions of photosynthesis