A series of events or processes that repeat in a predictable pattern, returning to the initial state after completing a sequence.
A unit of measurement that expresses the frequency of oscillations or vibrations, commonly referenced in contexts like electricity or sound.
A two-wheeled vehicle, typically powered by pedaling, used for transportation or sport.
A compact bicycle characterized by small wheels, typically ranging from 40 to 56 centimeters in diameter, designed for ease of maneuverability and storage.
A type of lightweight bicycle that features a smaller wheel size, making it suitable for urban environments and short-distance travel.
A bicycle with reduced wheel dimensions, ideal for individuals seeking a portable and space-efficient mode of transportation.
A unit of frequency that represents one million cycles per second, commonly used in the context of alternating current and radio waves.
An older term for megahertz, which denotes a frequency of one million hertz, particularly in telecommunications and electronics.
A cycle that occurs at a high frequency, often associated with substantial changes in trends or phases, such as economic cycles or technological advancements.
The process of collecting and repurposing used materials, such as paper or metal, to reduce waste and utilize them as resources again, often to conserve natural resources and minimize environmental contamination.
A practice that involves the recovery and transformation of discarded items into usable resources, which may also include the act of passing unwanted goods to others for further use, thereby extending the life cycle of those items.
An initiative aimed at minimizing environmental impact by reprocessing waste materials into new products, thus promoting sustainability and resource efficiency in daily life.
A retail establishment that specializes in buying and selling used items, allowing customers to trade in unwanted goods for store credit or cash.
A store that promotes sustainable consumption by providing a marketplace for pre-owned products, helping to reduce waste and encourage recycling.
A commercial space where individuals can find various second-hand goods, ranging from furniture to electronics, often at reduced prices compared to new items.