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<h1>Liquid emulsion</h1> | ===<h1>Liquid emulsion</h1>==== | ||
With a liquid silver emulsion applications can be made to a variety of surfaces such as tile, glass, pottery, wood, canvas, stainless steel and coated metals. Brushing, dipping, and spraying are among the techniques employed for applying the emulsion to three-dimensional surfaces. | With a liquid silver emulsion applications can be made to a variety of surfaces such as tile, glass, pottery, wood, canvas, stainless steel and coated metals. Brushing, dipping, and spraying are among the techniques employed for applying the emulsion to three-dimensional surfaces. | ||
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<h1>Lichen</h1> | ===<h1>Lichen</h1>=== | ||
[[File:92A06BFA-B889-4F21-9184-88D43414B7D1L0001 2.png|300px]] | [[File:92A06BFA-B889-4F21-9184-88D43414B7D1L0001 2.png|300px]] | ||
[[File:61677041-627D-477E-BF98-18048394738FL0001.png|300px]] | [[File:61677041-627D-477E-BF98-18048394738FL0001.png|300px]] | ||
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<h4>Growth rate | <h4>Growth rate</h4> | ||
Lichens often have a regular but very slow growth rate of less than a millimeter per year. Different lichen species have been measured to grow as slowly as 0.5 mm, and as fast as 0.5 meter per year. | Lichens often have a regular but very slow growth rate of less than a millimeter per year. Different lichen species have been measured to grow as slowly as 0.5 mm, and as fast as 0.5 meter per year. | ||
In crustose lichens, the area along the margin is where the most active growth is taking place. Most crustose lichens grow only 1–2 mm in diameter per year. | In crustose lichens, the area along the margin is where the most active growth is taking place. Most crustose lichens grow only 1–2 mm in diameter per year. | ||