The "Exo-Prosthetic" created by William Root, is a printed artificial leg made from laser-sintered titanium, which uses a scan of the wearer's truncated limb for fit, and a scan of the intact limb for form.
Can't remember those short cuts your children showed you on the computer? Here is a chart entitled the Essential Keyboard Shortcuts (grouped by type) that has the most commonly used computer shortcuts.
Port - Most input/output devices are outside the computer case. These devices communicate with components inside the computer case through a wireless connection or through pcables attatched to the case at a connection called a port.