Lesson Summary. Infrared waves are just part of the electromagnetic spectrum; to be exact, they're waves that have a wavelength between 700 nm (nanometers) and 1 mm. This can't quite be detected by human eyes-it is just beyond the red side of the rainbow.esson Summary. Infrared waves are just part of the electromagnetic spectrum; to be exact, they're waves that have a wavelength between 700 nm (nanometers) and 1 mm. This can't quite be detected by human eyes-it is just beyond the red side of the rainbow.
Also called split rail or post and rail, a ranch-style vinyl fence with two to four rails typically costs do-it-yourselfers $4-$12 a linear foot for materials; with a gate and other options do-it-yourself materials can total $500-$1,400 for 100' of fencing and $3,500-$10,000 to enclose a simple square acre (about 830').
1 Labor costs for vinyl fence installation are $5 to $8 per linear foot. 2  The total vinyl fencing cost should be $15 to $35 per linear foot but could be as much as $30 to $60 per linear foot or more for expensive materials and/or a difficult installation.he thickness, size, finish and design of vinyl fencing all affect price, as does the complexity of the installation, local labor and material costs, and other factors. 1  Vinyl fencing costs $ 10 per linear foot (budget) to $25 per linear foot (high end).