Division of Periodic Table into s-, p-, d- and f blocks on the Basis of Electronic Configurations. The long form of periodic table can be divided into four main blocks. These are s-, p-, d- and f-blocks. The division of elements into blocks is primarily based upon their electronic configuration as shown in Fig. 6.2.
What is it? The EquiCam is the ultimate piece of filming equipment for equestrian sports, a miniature super light weight camera (just 38g) and two special riding hat camera mounts (elastic hat strap and a hat mount). Film your rides in full 1080p HD for fun and for safety.
Viewfinder: Viewfinder is a slot in the camera which allows you to preview the scene. The Shutter: The shutter covers the sensor (or film in case of a film SLR). The shutter opens up when the shutter-release button is pressed to allow the light to fall on the sensor/film and create a capture. The speed of the shutter can be controlled which determines how long the shutter is open and what amount of the light passes through.