#electroplating

An old jeweler’s trick could change nuclear timekeeping

A centuries-old metal-plating trick may unlock ultra-precise nuclear clocks that work without GPS and could redefine how we measure time.

Last year, researchers led by UCLA achieved a milestone that physicists had pursued for half a century. They succeeded in making radioactive thorium nuclei absorb and release photons in a controlled way, similar to how electrons behave inside atoms. The idea was first proposed by the team in 2008, and its realization is expected to open the door to a new generation of extremely precise clocks. These advances could dramatically improve navigation systems and may even help scientists test whether some of nature's fundamental constants change over time. Despite the breakthrough, a serious limitation remained. The specific isotope required for nuclear clocks, thorium-229, is found only in weapons-grade uranium. As a result, scientists estimate that only about 40 grams of this material exist worldwide for clock research, making efficiency a critical challenge.

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collier groseilles (redcurrant necklace), c. 1980-2005, silver, claude lalanne, french, 1925-2019, from collection dorothée lalanne; claude lalanne : bijoux et accessoires, 2021, sotheby

i have been in love with claude lalanne's electroplated jewelry for years, which she composed by collecting plants found in her garden. in a 1990 interview with dorothée lalanne (françois' daughter who she adopted after they got married) she describes her artistic process as such :

Electrochemistry is a branch of chemistry that studies the relationship between electricity and chemical reactions. It explains how chemical energy is converted into electrical energy and how electrical energy can cause chemical changes. In electrochemical processes, electrons are transferred from one substance to another through reactions called oxidation and reduction. These reactions allow electric current to flow and make many modern technologies possible. As such, electrochemistry plays an important role in science, engineering, and everyday life. ⚡🧪

A common example of electrochemistry is a battery. Batteries operate on electrochemical reactions that produce electricity. Inside a battery, chemical substances react and release electrons. These electrons travel through a circuit and provide power to devices such as flashlights, mobile phones, remote controls, and laptops. This process shows how chemical energy is converted into electrical energy. Rechargeable batteries also rely on electrochemical reactions that can occur repeatedly, making them useful for many electronic devices. 🔋⚡📱

Another simple example is electroplating. Electroplating is a process where a thin layer of one metal is applied to another using electricity. For example, jewelry can be plated with gold or silver to improve its appearance and protect it from damage. The object is placed in a solution containing metal ions, and when electricity is passed through the solution, the metal ions are deposited on the surface of the object. This electrochemical process is widely used in industries to improve the strength, durability, and appearance of metal products. ✨⚙️

Corrosion is also an electrochemical process that occurs naturally. The rusting of iron is a well-known example. When iron reacts with oxygen and moisture in the air, it forms iron oxide, commonly known as rust. This process involves the transfer of electrons and is an example of electrochemistry in nature. Scientists study corrosion to find ways to protect metals and extend the life of buildings, vehicles, and machinery. 🌧️🔩

Vault of Horror No. 27 - Silver Threads Amongst the Mold!

Here is how it looked before

Gravity loop necklace by OLUV