### energy | radiation | light | sunlight:

Adequate sunlight
* encourages good development of the oils in the leaves.
* results in larger blooms and healthier, hardier plants.

Bright sunlight
* Most bright sunlight increases temperature.
* burns delicate skin
* can cause shadows.
* destroys photosynthetic pigments.
* makes people squint and throws off shadows.

### energy | radiation | light | sunlight:

Direct sunlight
* More direct sunlight illuminates the brighter region close to the horizon.
* Most direct sunlight causes deterioration
  - hits surfaces
* adds heat to the body by radiation.
* burns foliage
  - the thin leaves within a short period of time
* can affect water samples, so do all chemical tests in the shade
  - watermelon quality after harvest
  - also reduce the strength of pollen
* can be too harsh as well
  - very harsh which distorts details and washes out colors
  - burn the foliage and also causes the blooms to fade more quickly
* can cause permanent damage
  - some fabrics to fade
  - discolor wood
  - harm the condition of rubber seals and cause tools to operate improperly
  - kill some eggs or larvae
  - quickly overheat a culture, and complete darkness yields slower production
* can warm the onions too much and result in translucent scales
  - water more than salmon eggs can stand
  - warp wood furniture as it dries
* causes blistering in new finishes
  - degradation to an inorganic tin salt
  - higher temperatures
* contains high levels of light in the ultraviolet spectrum.
* creates harsh shadows.
* enhances both foliage color and flower development.
* has stronger, more natural colors, but the shadows on the face are harsh.
* influences postharvest temperature responses and ripening of five avocado cultivars.
* is blocked from reaching the moon
  - different than indirect sunlight
  - excluded for both values of illumination
  - hard on synthetics
  - harmful to paintings
  - likely to be harmful
  - often too strong for algae
* kills flea larvae, so keep lawn well mowed.
* natural condition for duckweeds.
* obscures the colors.
* produces a harsh light, especially noticeable in the middle of the day.
* slows the fleas life cycle.

Enough sunlight
* enters the epipelagic zone to allow photosynthesis by phytoplankton.
* tos fuel growth

Excessive sunlight
* Most excessive sunlight causes skin reaction.
* causes reaction

Full sunlight
* is deadly to seedlings
  - needed for many plants to assume their full potential
* means just that, nothing breaking the rays of the sun.

Indirect sunlight
* can cause sunburn, too.
* helps break down the bilirubin in their system.
* produces a softer light.

Natural sunlight
* can cause mutations
  - have a positive effect on psoriasis
* has the great advantage of being free, and generates no greenhouse gases.
* is important to a lot of animals, particularly the reptiles.
* makes people feel better than artificial light does.

Strong sunlight
* disinfects water by permanently de-activating bacteria, spores, moulds and viruses.
* is one example of good lighting
  - only one of many types of good lighting
* means black shadows in the eye sockets.
* occurs only occasionally, in certain locations.

White sunlight
* contains a prism, or rainbow, of colors
  - all colors
  - the entire color spectrum
* is made up of all colours, travelling to the Earth as waves
  - really a lot of different colors of light mixed together
  - split into a rainbow of colors