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.
I'm sure other backpacks have it, but i love the camera pouch on strap - i use it to carry a phone or smaller camera like my canon S95 and it makes it so easy and quick to grab a photo without taking your pack off - awesome on a motorbike - because that normally means helmet too. Shows location of camera pouch on strap.