HP Rolls Out New Printers, 3D Scanning, Better Cloud Printing. On Thursday, HP announced 13 new printers and scanners, many of which target the small and midsize business market. This new range of printers and scanners emphasizes Web-connected printing and advanced scanning. HP's TopShot Laserjet Pro M275 can scan 3D objects.
Typically, a single bond is a sigma bond while a multiple bond is composed of one sigma bond together with pi or other bonds. A double bond has one sigma plus one pi bond, and a triple bond has one sigma plus two pi bonds.
Double bonds are shorter than single bonds because p-orbital overlap is maximized. 2 sp 2 orbitals (total of 3 such orbitals) approach to form a sp 2-sp 2 sigma bond Two p-orbitals overlap to form a pi-bond in a plane parallel to the sigma plane