Lithium carbonate is a lithium salt of carbonate consisting of lithium, carbon, and oxygen elements. Lithium carbonate is a white, crystalline powder that is commonly used in industrial applications, with its primary significance in the field of energy storage, particularly in the production of lithium-ion batteries.

An object that orbits the planet at a lower altitude than geosynchronous satellite is known as a low Earth orbit (LEO) satellite. These objects are typically pieces of electrical equipment. Between 2,000 and 200 kilometers above the surface of the planet, LEO satellite orbit. LEO satellite is frequently used for imaging, spying, military reconnaissance, and other types of communications. Compared with a satellite at a higher altitude, LEO satellite has a much smaller communication field with the ground. They rotate around the planet more quickly as well.

Linear actuators are used to convert energy (power from air, electricity, or liquid) into linear motion. These actuators convert rotary motion into linear motion by means of a linear motor, a belt, or a screw drive. The linear actuators that convert energy from air into linear motion are called pneumatic linear actuators; the linear actuators that convert energy from the fluid into linear motion are called hydraulic linear actuators, and the linear actuators that convert energy from electricity to linear motion are referred to as electric linear actuators.

A leisure boat is typically used for entertainment and tourism. It can be powered by a motor or non-motorized and includes various types, such as sailboats, cabin cruisers, towboats, jet boats, watercraft, and runabouts, among others. These boats are popularly purchased and used for activities such as sailing, boating, fishing, or campaigning. Due to the ability to maintain social distance while enjoying oneself, boating has become a favored leisure activity in many regions and countries, leading to a surge in boat purchases.

Cannabis is a flowering plant of different species, such as cannabis sativa, cannabis indica, and cannabis ruderalis. There are a variety of cannabis plants, of which marijuana and hemp are the two most prominent ones. Cannabis contains two cannabinoids, namely, THC and CBD.

LED lighting is based on fixed light source installations, which deliver a practical or aesthetic lighting effect. The general lighting industry is moving toward energy-efficient lighting, leading to technological innovations in the market. LED lighting solutions provide advantages such as low voltage and current requirements, high reliability, low radiated heat, negligible emission of ultraviolet (UV) rays, and a longer lifespan than conventional lighting sources. As a result, the adoption and penetration of LEDs in the general lighting industry are rising.

Leather tanning machinery refers to a type of industrial equipment that is used in the tanning of animal hides and skins into leather. The importance of leather tanning machinery depends on its ability to effectively and efficiently convert raw animal hides into usable leather products.

Laser printers use the principle of electrophotography or electrostatic charges for printing. Laser light is used for inducing charges to facilitate printing. The laser light induces charges on the printer drum, which is opposite to the charge of toner inks in the printer. With opposite charge polarities, where the drum is positively charged, and the toner is negatively charged, the ink in the toner gets attracted to the drum. The ink stuck on the drum is in accordance with the image or data provided to the printer. The negatively charged toner ink, which sticks in the format of the image as provided, gets attracted to the positively charged paper. This creates a replica of the original image provided to the printer.

A K-12 makerspace is a place in K-12 schools that allow students to create, tinker, invent, discover, and explore new ideas using a varied range of materials. These materials are referred to as K-12 makerspace materials. Some of these materials are 3D printers, computers, cameras, electronic tools, building materials, and art and craft supplies.

Game-based learning connects educational content with computer or video games and is used by students interested in different subjects, including science, technology, engineering and math (STEM), language learning, and social sciences. It is designed to balance the study of the subject matter with gameplay and has certain defined learning outcomes. Game-based learning helps students learn in an immersive and engaging environment. Moreover, it aids educators in motivating learners to perform and understand complex topics with ease within a limited time. It allows the creation of an imaginative world for learners to plan, analyze, and experience complex realities without much difficulty.