History of the single-lens reflex camera
The history of the single-lens reflex camera (SLR) begins with the use of a reflex mirror in a camera obscura described in 1676, but it took a long time for the design to succeed for photographic cameras. The first patent was granted in 1861, and the first cameras were produced in 1884, but while elegantly simple in…
Battery energy storage system
A battery energy storage system (BESS), battery storage power station, battery energy grid storage (BEGS) or battery grid storage is a type of energy storage technology that uses a group of batteries in the grid to store electrical energy. Battery storage is the fastest responding dispatchable source of power on…
Electric vehicle battery
An electric vehicle battery is a rechargeable battery used to power the electric motors of a battery electric vehicle (BEV) or hybrid electric vehicle (HEV). They are typically lithium-ion batteries that are designed for high power-to-weight ratio and energy density.
Shop Father's Day | Food | Woolworths
Explore a variety of Father's Day dining options in South Africa, offering unique culinary experiences to celebrate the special occasion. From gourmet meals to traditional dishes, these venues provide the perfect setting to honor fathers with delicious food and memorable moments. Whether seeking a lavish brunch or a co…
Shop Batteries & Chargers Online | Woolworths
Shop batteries & chargers designed for everyday quality and convenience. Shop more online at Woolworths.co.za or on the app.
Tesla Roadster (first generation)
The first generation Tesla Roadster is a battery electric sports car based on the Lotus Elise chassis, and was produced by Tesla Motors (now Tesla, Inc.) from 2008 to 2012. The Roadster was the first highway legal, serial production, all-electric car to use lithium-ion battery cells, and the first production…
Energizer batteries
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History of photographic lens design
The invention of the camera in the early 19th century led to an array of lens designs intended for photography. The problems of photographic lens design, creating a lens for a task that would cover a large, flat image plane, were well known even before the invention of photography due to the development of lenses to…
Nikola Corporation
Nikola Corporation (formerly known as Nikola Motor Company) was an American manufacturer of heavy-duty commercial battery-electric vehicles and fuel-cell electric vehicles. The company went public on June 4, 2020.
Fuel cell
A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) into electricity through a pair of redox reactions. Fuel cells are different from most batteries in requiring a continuous source of fuel and oxygen (usually from air) to sustain…