Atomic absorption spectroscopy (AAS) is a method for determining the concentration of chemical elements in a given sample. The technique is based on the absorption of light by free atoms in the gaseous state. Some attendees of the 17th meeting of the Astronomical and Astrophysical Society of America visiting Yerkes Observatory. The meeting was held at Dearborn Observatory, Northwestern University, Evanston, Illinois, 25-28 August 1914. AAS Vidyalaya is a digital school designed for children who cannot attend regular schools due to distance, financial issues, health conditions, or other challenges. Using mobile technology, it brings curriculum-aligned education directly to students through video lessons, assessments, and teacher support. Accessible anytime and anywhere, AAS Vidyalaya empowers learners to continue their education and build a brighter future, ensuring no child is left behind. The food, health supplement industries, and cannabis make use of AAS to ensure that if there is any contamination in the supplied products and make sure they are safe for consumption.
