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').
Vinyl Fencing Average Costs. The 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).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).