How To Build A Tin Can WiFi Antenna - This little hack improves your wifi range so much the modem companies have tried to hide this for years!
Robotic MECHANISMS – PULLEY SYSTEMS 51005 | ROBOTS & ROBOTICS PORTAL
Animation: Highwayman's Hitch
Sailing And Boating Knots NEW Book by Andy Steer
Albright Knot. Used for joining fishing lines of diff rent diameter such as a leader line.
Slip Knot - How to tie a Slip Knot - This version of a slip knot is very quick and easy to tie. It is technically a “slip noose” and is made using the fisherman’s Uni Knot with just one or two turns.
The Spool knot is used to attach the mainline to the spool. When attaching braided line it's advisable to make several extra wraps around the line.
Seven Essential Knots for Sailors | Sail Magazine