Surface area of 380 km by 380 km (236 mi by 236 mi) in the Sahara desert required to power the world with solar energy only. Concentrated solar power (CSP, also known as concentrating solar power, concentrated solar thermal) systems generate solar power by using mirrors or lenses to concentrate a large area of sunlight onto a receiver. Electricity is generated when […]
The effect is a result of lightness perception, or the concept that our eyes perceive colors differently based on the shade of whatever object is in the background or foreground. Put simply, if there is a bright background, objects in the foreground will appear darker. Likewise, if the background is dark, objects in the foreground […]
Definition: System or technique for detecting the position, motion, and nature of a remote object by means of radio waves reflected from its surface.
What happens when a computer engineer fails flirting with a waitress? Error in connecting to the server.
Here’s a useful info for you guys: one 18 inch pizza has more ‘pizza’ than two 12 inch pizzas. Area of two 12″ pizzas: 12/2 = 6 6×6=36 36xπ = 113.1 in² x 2 = 226.2 in² Area of one 18″ pizza: 18/2=9 9×9=81 81xπ = 254.5 in²
A concrete pump is a machine used for transferring liquid concrete by pumping. There are different types of concrete pumps. A common type of concrete pump for large scale construction projects is known as a boom concrete pump, because it uses a remote-controlled articulating robotic arm (called a boom) to place concrete accurately. It is attached to a truck or a semi-trailer, if particually long. […]
A Tesla valve, called a valvular conduit by its inventor, is a fixed-geometry passive check valve. It allows a fluid to flow preferentially in one direction, without moving parts. The device is named after Nikola Tesla, who was awarded U.S. Patent 1,329,559 in 1920 for its invention. The patent application describes the invention as follows: The interior of the conduit is provided with enlargements, […]