What is the green hydrogen? Green hydrogen refers to hydrogen gas that is produced using renewable energy sources through a process called electrolysis. Unlike conventional hydrogen production methods that rely on fossil fuels, such as natural gas reforming, green hydrogen production is considered environmentally friendly and sustainable. The process of green hydrogen production involves the … Read more
What are the rare earth elements? Rare earth elements (REEs) are a group of 17 chemical elements found in the Earth’s crust. Despite their name, they are relatively abundant in the Earth’s crust compared to some other elements, but they are called “rare” because they are not often found in concentrated and economically exploitable deposits. … Read more
Ultrasonic waves, also known as ultrasound, are a type of sound wave with frequencies higher than the upper limit of human hearing. The human hearing range typically extends up to around 20,000 hertz (Hz), while ultrasonic waves have frequencies greater than this threshold. Ultrasound is commonly used in various fields due to its unique properties … Read more