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The construction of a mirror
(8) | 03/01/2020 | Translate: The construction of a mirror in a crafts, without the use of machinery. For making two solutions, one of which contains silver nitrate, ammonia and distilled water – and the other with sodium potassium tartrate dissolved in distilled water. When these solutions are mixed,, generated silver liquid in pure form. The chemical reactions between the solutions sequester silver, maintaining the liquid long enough to be applied to the glass sheet. The mixture should be poured onto clean glass, when frozen is uniformly bonded to the surface. The quality of the mirror formed in this way will depend largely on how clean is the glass.
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The effect of low temperature on tin At low temperatures (at about -30°C), tin begins to dissolve in an autocatalytic reaction called and "tin leprosy". Already at 13°C pure tin turns into powder, something that is hindered in its industrial applications by the addition of antimony and bismuth. Here we see a timelapse of this tin wear, which took place over a period of about two hours and temperatures around -40°C. - The construction of a mirror for the largest telescope in the world The construction of a giant mirror for a telescope is not a simple feat. Here we see how the casting and manufacturing giant mirror installed in the telescope "Magellan" under construction. The sheer size of glass, The nanometer precision in curves, the carefully calculated optics and adaptive software required for handling make this colossal achievement. the telescope "Magellan" expected to be completed around 2025 and is located in La Serena, Chile.
- Aquarium over the surface of the water The construction of an aquarium on a small lake. Fish seems to adore the view and put themselves in the glass container.
- Making a huge pizza at the construction site A manufacturing company in the United States, try to make a huge pizza using the heavy tools and machinery for building houses.
- Thermal bonding on glass How to weld a handle to a glass mug, in a factory.
- Making glass marbles See how glass marbles are made from recycled glass in India.
- Handmade hiking boots The hypnotic process by which a pair of hiking boots is made by hand, at Songlim Craft in Seoul, Korea.
- Making two handmade silver mugs A craftsman makes and carves two silver mugs, according to the order of one of his customers.
- Construction site from the first half of the 20th century At the construction machinery exhibition "Weiach Historik 2022" in Switzerland, a historical construction site was created and presented. The machines, were the ones used from the early 20th century until about 1950.
- The launch of the James Webb Telescope A new space telescope was launched from the tropical space port of Guyana on December 25, 2021, which will give much more information than the old Hubble. The James Webb telescope that was built for 25 years, it will take another month to reach its orbit. Intended to be the successor to the Hubble Space Telescope, James Webb was funded by three space services: NASA, ESA and CSA. It will be 100 times more powerful and will incorporate improved and different technologies to capture 70% more light.
- A lake like a mirror The perfectly flat and still surface of the water in a lake, gives the impression that the jetski on it is immobile.
- Manufacture of wooden chess pieces Making wooden chess pieces in a craft.
- Manufacture of glass bottles in a factory A brief tour of the production line of a glass bottle factory. The molten glass falls as we see at the beginning into pieces at the lowest point where the molds are located. The tempered glass enters the molds, and then a nozzle pushes air into the orifice to form the bottle into the mold.
- Breaking a glass table In Melbourne, Australia, a young man moves a round glass table in the living room of a house. The round table rests slightly on one of the corners of a table also made of glass, which then breaks into a thousand pieces.
- Making a handmade leather belt In Ontario, Canada, a skilled craftsman of small crafts "Noble Leather" makes a handmade belt.
Hello
Håller på med diverse experiment för att i slutänden skapa 3-dimensionella skulpturer i olika material. Har diverse verktyg inklusive en ugn för gjutning av glas och med denna vill jag skapa en form att applicera det skikt som skapar en spegeleffekt. Denna video hittade jag till sist som beskriver en teknik. Dock ser den inte ut att lämpa sig för annan form än plant glas med väldigt låg viskositet. Finns det möjlighet att skapa en mer trögflytande vätska på något sätt. Tanken är inte att skapa en perfekt spegel, snarare en applikation som ger en spännande ljuseffekt. All info är av intresse!!!