Metal concerts are typically very loud, as the genre is known for its heavy and intense sound. The volume level at metal concerts can often reach over 100 decibels, which is equivalent to the sound of a chainsaw or a jackhammer. Many metal bands use powerful amplifiers and sound systems to create a wall of sound that can be felt as well as heard. As a result, it is common for concert-goers to wear earplugs to protect their hearing. **

Elemental artifacts are objects or items that are imbued with the power of the elements, such as earth, air, fire, or water. These artifacts are often associated with ancient myths and legends, and are said to possess great magical or mystical properties. They are believed to harness the elemental forces of nature and can be used for various purposes, such as protection, healing, or wielding great power. Throughout history, elemental artifacts have been sought after by adventurers, sorcerers, and seekers of ancient knowledge. **

In metal processing, the metal turns blue due to a process called tempering. Tempering is a heat treatment technique used to increase the toughness and reduce the brittleness of the metal. During tempering, a thin oxide layer forms on the surface of the metal, giving it a blue color. This color change is a visual indicator that the metal has been properly tempered and is now more suitable for certain applications. Additionally, the metal may also develop a rainbow-like iridescence, known as tempering colors, which is a result of the thin oxide layer reflecting light at different wavelengths. **

The correct spelling is "Elemental Hero." "Yu-Gi-Oh!" is the name of the franchise, and "Elemental Hero" is the name of a specific type of card within the game. Therefore, the correct spelling is "Elemental Hero" when referring to the card type in the "Yu-Gi-Oh!" trading card game. **

Nu Metal is a subgenre of metal music that emerged in the late 1990s and early 2000s. It combines elements of metal, hip-hop, alternative rock, and other genres. While some purists may argue that Nu Metal is not "real" metal music due to its incorporation of non-traditional elements, others consider it a legitimate and innovative evolution of the genre. Ultimately, whether Nu Metal is considered real metal music is subjective and depends on individual preferences and definitions of what constitutes metal music. **

The best music streaming service for rock/metal music would be Spotify. Spotify offers a wide range of rock and metal music from various artists and genres, making it easy to discover new music and create personalized playlists. Additionally, Spotify's user-friendly interface and features such as curated playlists and radio stations cater well to rock and metal music fans. Overall, Spotify provides a comprehensive music streaming experience for rock and metal enthusiasts. **

No, not all metals are elemental substances. Metals are a type of element that is typically solid, shiny, and a good conductor of heat and electricity. However, some metals can form compounds with other elements, such as oxygen, sulfur, or carbon, resulting in metal oxides, sulfides, or carbides. These compounds are not considered elemental substances because they are made up of more than one type of element. **

Elemental chlorine is highly toxic and can be harmful if inhaled, ingested, or in contact with the skin or eyes. It is a strong irritant to the respiratory system and can cause coughing, chest tightness, and difficulty breathing. In high concentrations, it can cause severe lung damage and even death. Additionally, exposure to chlorine gas can also lead to skin and eye irritation, as well as damage to the gastrointestinal tract if ingested. Therefore, it is important to handle elemental chlorine with extreme caution and ensure proper safety measures are in place when working with it. **