The Khalili Collection of Spanish Metalwork is a significant collection of metalwork artifacts, particularly those from the Islamic and Spanish medieval periods. It is part of the broader Khalili Collections, curated by Sir Gilbert Khalili, which includes a variety of artworks and artifacts from different cultures and historical contexts. The collection of Spanish metalwork mainly features pieces created during the time of Muslim rule in Spain, especially from the medieval period when Al-Andalus was a center of cultural and artistic exchange.

Rotten stone is a type of naturally occurring limestone that has undergone a specific weathering process, resulting in a fine powder used primarily as a polishing agent. It consists mainly of calcium carbonate, which gives it its soft and abrasive characteristics. Historically, rotten stone was used in woodworking and metalworking, where it served as a gentle abrasive for polishing surfaces to a smooth finish. Due to its fine texture, it is suitable for achieving a high-gloss result without scratching delicate surfaces.

Semi-solid metal casting (SSM) is a casting process that involves the use of metal alloys in a semi-solid state, which is characterized by a mixture of solid and liquid phases. This technique combines aspects of both traditional casting and forging, allowing for the production of complex shapes with improved material properties.

Superforming is a manufacturing process primarily used in the production of complex, lightweight shapes, often for components in the aerospace, automotive, and other high-tech industries. The process involves using heat and pressure to form materials, typically aluminum or aluminum alloys, into intricate geometries. In the superforming process, a sheet of material is heated to a specific temperature, making it pliable.

A barometer is an instrument used to measure atmospheric pressure. It helps in forecasting weather and determining altitude. There are two main types of barometers: 1. **Mercury Barometer**: This consists of a glass tube filled with mercury, which is inverted into a dish of mercury. As atmospheric pressure changes, it causes the mercury level in the tube to rise or fall. The height of the mercury column is measured in millimeters or inches and corresponds to the atmospheric pressure.

Tumble finishing, also known as tumble polishing or barrel finishing, is a mechanical process used to smooth, polish, and deburr metal, plastic, or ceramic parts. This technique involves placing the parts along with abrasive media (such as ceramic beads, plastic pellets, or other types of abrasives) into a rotating barrel or tumbler. As the barrel rotates, the media and parts tumble together, resulting in friction and abrasion that smooths the surfaces of the parts.

Wrought iron is a type of iron alloy that is known for its malleability, ductility, and resistance to corrosion. It typically contains a very low carbon content (less than 0.08%) and is characterized by its fibrous texture, which is a result of the manufacturing process that involves heating and working the iron to shape it. Historically, wrought iron was produced by heating iron ore in a forge and then hammering or rolling it to remove impurities and shape it.

Electrochemical potentials refer to the ability of an electrochemical system, which involves chemical reactions and electric charges, to perform work or drive reactions due to differences in energy. Understanding electrochemical potentials is fundamental to fields like electrochemistry, battery technology, corrosion science, and fuel cells. ### Key Concepts: 1. **Gibbs Free Energy**: The electrochemical potential is often related to changes in Gibbs free energy (ΔG) for a reaction.

A depolarizer is a chemical substance used in electrochemistry, particularly in batteries and fuel cells, to counteract the buildup of polarization that occurs during electrochemical reactions. In these systems, polarization can hinder the efficiency of the reaction by increasing the resistance at the electrode surface, leading to reduced performance.

Continuous adsorption-regeneration is a process used primarily in industrial applications for the removal or recovery of specific substances (such as pollutants, contaminants, or valuable materials) from a liquid or gas stream through an adsorption mechanism, followed by a regeneration phase that restores the adsorbent's capacity for further use. This two-step process is designed to operate continuously, maximizing efficiency and minimizing downtime.

Electrosynthesis is a chemical process that uses electrical energy to drive chemical reactions, often to produce complex organic compounds or materials. This technique typically involves the application of an electric current to induce chemical transformations, facilitating processes such as synthesis, reduction, oxidation, or polymerization. In electrosynthesis, electrodes are immersed in an electrolyte solution, where the reaction occurs at the surface of the electrodes.

Electrochemical regeneration refers to a process where an electrochemical cell is used to restore or regenerate a substance, often a catalyst, reactant, or solution, thereby allowing it to be reused in a chemical process. This technique is commonly applied in various fields, including waste treatment, energy storage, and environmental remediation.

FLiNaK is a type of salt mixture that is primarily composed of three components: lithium fluoride (LiF), sodium fluoride (NaF), and potassium fluoride (KF). These components are typically combined in a specific molar ratio, often around 46.5% LiF, 11.5% NaF, and 42% KF, although variations exist.

An oxidizing agent, or oxidant, is a substance that gains electrons in a chemical reaction and thereby causes another substance to be oxidized. In the process, the oxidizing agent itself is reduced. Oxidizing agents are crucial in redox (reduction-oxidation) reactions, where the transfer of electrons occurs. Common examples of oxidizing agents include: 1. **Oxygen (O₂)** - Often involved in combustion and respiration.

Single-entity electrochemistry refers to the study of electrochemical phenomena at the level of individual molecules or small entities, such as nanoparticles, rather than at the bulk or macroscopic scale. This field aims to probe the electrochemical behavior of single entities to gain insights into fundamental processes, mechanisms, and properties that can be masked in ensemble measurements.

Barsukov Seamount is an underwater volcanic feature located in the North Pacific Ocean. It is part of the Emperor Seamount chain, which stretches northwestward from the Hawaiian Islands. Barsukov Seamount is known for its relatively steep slopes and has been the subject of geological studies due to its volcanic origin and the ecosystems that develop around seamounts. Such underwater features often host diverse marine life and play important roles in oceanography and marine ecology.

Batt Reef is a coral reef located in the Coral Sea, off the northeastern coast of Australia. It is part of the larger Great Barrier Reef system and is situated near the Coral Sea Marine Park. Like many reefs in this region, Batt Reef is known for its diverse marine life and vibrant coral formations, making it a popular destination for snorkeling, scuba diving, and marine tourism. The reef ecosystem plays a crucial role in supporting various species of fish, invertebrates, and other marine organisms.

The Caribbean Current refers to a major oceanic current that flows through the Caribbean Sea, playing a crucial role in the region's climate and marine ecology. It is part of the larger Atlantic Meridional Overturning Circulation and is influenced by several factors, including wind patterns, the geography of the surrounding landmasses, and the Gulf Stream.

As of my last knowledge update in October 2021, there is no widely-known financial institution or entity called "Crary Bank." It's possible that it could refer to a small or local bank, a banking service, or a new establishment that has emerged after my last update.

The Drygalski Basin is a significant geological feature located in the Southern Ocean, specifically to the southeast of the island of South Georgia, which is part of the British Overseas Territory of South Georgia and the South Sandwich Islands. This basin is an area of the ocean floor characterized by its relatively deep oceanic sediments and geological formations. It is named after the Polish geographer and polar researcher, Heinrich Drygalski, who was noted for his explorations in polar regions.