Whether you’re looking to buy gold for investment or just for fun, there are a number of interesting facts about gold that you probably didn’t know. These include the fact that gold is actually made of metals like copper and zinc, and that you can find gold in the leaves of Eucalyptus trees. Also, gold is alloyed with other metals to increase its hardness and odorlessness.
Eucalyptus tree has gold content in its leaves
CSIRO researchers have discovered gold in the leaves of eucalyptus trees growing in the Kalgoorlie region of Western Australia. This could lead to a new method of locating buried gold deposits. It could also provide a cheap, eco-friendly means of discovering gold ore deposits.
Researchers used x-ray elemental imaging to locate gold particles in the structure of eucalyptus leaves. This technique can also be used to detect other metals.
Gold is usually concentrated in leaves. These particles are small, less than one-fifth the diameter of a human hair, and move naturally within the plant. They are probably toxic to the plant, but not to humans.
The study was published this week in Nature Communications. It was led by Dr. Melvyn Lintern, an Earth science researcher at the CSIRO. He says the findings may help turn a potentially unreliable form of gold prospecting into a trusted means.
He said eucalyptus trees act as a hydraulic pump, drawing up minerals from the Earth and depositing them in their leaves. Their roots extend tens of meters underground, drawing up water and minerals. The leaves and branches of eucalyptus trees that grow above gold deposits contain 80 parts per billion of gold.
Although the amount of gold in eucalyptus leaves is very small, this could be a new way of locating buried gold deposits. If the current gold mines run out, these trees could be a cheap, environmentally friendly way to find new sites.
The study’s findings were confirmed by specialized X-ray equipment, which was operated from a Synchrotron research facility. The specialized X-ray microprobe was able to identify gold nanoparticles in eucalyptus leaves. These gold nanoparticles are about 8 micrometres in width and less than a fifth the diameter of a human hair.
Liquid gold reduces joint swelling for rheumatoid arthritis
Earlier in the twentieth century, gold-based therapeutics were used to treat rheumatoid arthritis. These treatments were known as aurotherapy or chrysotherapy. However, the benefits of gold therapy were limited.
Today, rheumatoid arthritis (RA) is an autoimmune disease that affects the joints. It involves an attack by the immune system against the lining of the joints, which leads to inflammation and pain. Medications such as steroids can help slow the disease and suppress the immune system. However, they are powerful drugs that can also cause side effects. These medications are best used for short periods.
While rheumatoid arthritis can be managed, more research is needed to learn how to treat the condition more effectively. Newer studies on gold compounds are aiming to find better ways to control inflammation. Using gold salts in the knees may reduce pain and inflammation. However, they can also cause toxic effects in the liver and kidneys.
In the study conducted by Sten Rasmussen and colleagues, gold microparticles were injected into the knees of 30 patients with osteoarthritis. The injections reduced pain and stiffness, and improved function. They also reduced the number of activity subscales. In addition, the researchers found that the presence of gold ions in the synovial fluid dampened the immune system.
Gold microparticles are considered to be part of the class of drugs known as DMARDs, which dampen the activity of the immune system. This reduces the risk of long-term joint damage. DMARDs also have other benefits. In addition to treating pain, corticosteroids are used to suppress the immune system, which is important for reducing inflammation.
However, corticosteroids can have side effects, and the best way to treat RA is with a combination of medications. NSAIDs are also used to treat pain, but they can also cause stomach ulcers and other complications.
High-purity gold is odorless and tasteless
Having said that, there are many reasons to be grateful for gold and its many uses. Gold is a dense, heavy metal that does not tarnish. It is used in jewelry, electronics and electrical wiring. It is also the most common material used to make jewelry and coins. It is also one of the rarest metals found in nature, with estimated amounts of 9 billion metric tons found in the earth’s crust.
Gold is also a good conductor of heat and electricity. It is one of the few metals that does not react with common acids or solvents. A gold bar is used as a reliable conductor in many modern electrical components. It can be shaped into just about any shape imaginable. It is even used to make family heirlooms. Gold is used for other more mundane reasons, including in the medical community as a lubricant for catheters and syringes.
A gold ring made of 14 parts gold and 10 parts alloy is the classic example. The purest form of gold is found as tiny, yellow grains called ‘alluvial gold.’ Unlike diamonds and rubies, this metal is odorless and tasteless. It is also relatively resistant to moisture and air. This is one of the reasons why gold is one of the most valuable metals in the world.
Gold is also a good conductor and has many other uses. It is often used as an alloy with silver. Known as the gold-silver or gold-silver-copper alloy, this material is often used in goldware and jewelry. The purest form of gold is also a good conductor of heat. It is also one of the few metals that does not tarnish.
Alloying gold with other metals to increase its hardness
Traditionally, gold and silver used in jewelry are alloyed with other metals to improve the hardness of gold and to make gold more resistant to wear and tear. There are numerous metals that can be used to alloy gold, such as zinc, copper, and nickel. All of these metals can increase the hardness of gold. They also give gold a different color, such as yellow, white, or red gold. The alloys are typically melted together to make the desired karat.
Gold and silver alloys are usually created by melting the fine gold with a base metal alloy. The base metal alloy is usually copper or silver. The alloying process can produce a wide variety of colors and shades of yellow, white, and red gold. The alloying process also produces different karats of gold.
In the past, manufacturers were discouraged from using alloys because of the potential hazards involved in the use of certain constituents. The use of chromium and iron in the alloying process may provide an improved alloy.
Gold alloys can be further hardened through heat treatments. Heat treatments can also increase the melting point of the alloy. Alternatively, the alloy can be cast in air. However, too much oxygen may cause porosity.
The new hard alloy is also capable of being cast in intricate shapes. It can be rolled to 99,99% of its thickness without cracking. In addition, it retains the corrosion resistance of conventional 22 carat gold alloy.
The new hard alloy was tested for corrosion resistance and resistance to tarnish. It was exposed to three different solutions for two months. The resulting hardness was measured across the soldered joint.
Lake Volta is the world’s biggest man-made lake
Located in South-Eastern Ghana, Lake Volta is the world’s largest man-made lake. Its surface area is 8,502 square kilometers. Lake Volta’s waters are used for fishing and irrigation. Several islands exist in the lake, including Dodi and Kporve.
Lake Volta provides water transportation for cargo and vessels. The lake serves as a transport route for people between the northern savanna and the coast. The lake also provides water for hydroelectric dams.
Lake Volta has a warm climate year-round. It also provides habitat for a variety of aquatic species. The lake is considered a modern wonder. The lake has become a source of revenue for the country. The Volta Lake Transport System is a research project sponsored by the UNDP, FAO and the Ghana Government.
The lake is used for fishing and irrigation, and has become an important transportation waterway. It has also become a popular area for tourism. There are several resorts and water sports in the area.
Fishing is a major source of income for the region. About 10,000 children work as slaves in the fishing industry. They work 12-17 hours a day. There is also a huge local industry for removing submerged trees.
The lake has been subject to changing water levels due to climate change. The lake has also been affected by excessive water abstraction. Currently, the lake’s capacity is 124,000,000 acre-feet of water. Lake Volta has a shoreline of 4,800 kilometers.
The Volta Dam, also known as Akosombo Dam, is a hydroelectric dam in Ghana. The dam was built from 1961 to 1965. The dam holds back the Black Volta River, which supplies the lake with its water. The dam is 124m high. It produces 912 MW of electricity. It supplies electricity to the country, neighboring countries, and to Togo.