When you stroll along a beach, you may look down and spot colorful bits of worn glass mixed in with the sand.
environmental science professor
, I find these gifts from the sea particularly interesting. I have analyzed sand from across the world and added samples, including one of sea glass, into a collection for the environmental, earth and atmospheric sciences at UMass Lowell.Prior to the proliferation of single-use plastics starting in the early 1970s, glass was the container of choice. People inthese trash heaps
On their way to the ocean, glass bottles would run into rocks and other objects, which would break the glass into smaller pieces. When these fractured bits traveled close enough to the coast, high tides and incoming waves would wash them out to sea.causes these fragments to slide and roll along the sandy seafloor. It's this movement that rounds the glass' sharp edges and gives the once smooth and clear glass its pitted, frosted appearance.
Quartz fractures tend to be a special type of break, called a conchoidal fracture. This type of fracture begins from a single point and breaks outwardly in a semicircular shape, so that the broken surface kind of looks like the inside of a seashell.. Because sea glass is made from quartz, it tends to break down into smaller fragments, but it won't weather away quickly.on the seafloor getting tossed around and smoothing its sharp edges in the sand.
Indonesia Berita Terbaru, Indonesia Berita utama
Similar News:Anda juga dapat membaca berita serupa dengan ini yang kami kumpulkan dari sumber berita lain.
Iconic southern accent is slowly disappearing with time, linguists sayResearchers at the University of Georgia and the Georgia Institute of Technology conducted a cross-generational study of Georgians, finding that their accents are gradually fading.
Baca lebih lajut »
I was a 'glass child'—It made me an anxious adult'Glass children' can develop mental-health issues such as depression, anxiety disorders and post-traumatic stress disorder, a therapist told Newsweek.
Baca lebih lajut »
DNA and glass combined to make ultra-light strong materialScientists have engineered an extraordinary material by combining two unexpected elements: DNA and glass.
Baca lebih lajut »
Strength is in this glass's DNA | ScienceDailyScientists were able to fabricate a pure form of glass and coat specialized pieces of DNA with it to create a material that was not only stronger than steel, but incredibly lightweight.
Baca lebih lajut »