Helix angle the helix angle. The efficiency can be plotted versus the helix angle for a constant friction, as shown in the adjacent diagram. The maximum efficiency is a helix angle between 40 and 45 degrees, however a reasonable efficiency is achieved above 15°. Due to difficulties in forming the thread, helix angle greater than 30° are rarely used. Moreover, above 30° the friction angle becomes smaller than the helix angle and the nut is no longer self-locking and the mechanical advantage disappears. In helical and worm gears, the helix angle denotes the standard pitch circle unless otherwise specified. Application of the
Less Than (song) from the mature, more dignified Nine Inch Nails in 2017." Multiple journalists singled out the song as the best or standout track from the "Add Violence" EP. Less Than (song) "Less Than" is a song by American industrial rock band Nine Inch Nails, from their EP "Add Violence". It was released on July 13, 2017 and the music video alludes to the video game "Polybius", an urban legend about a video game used to data mine information from people to the government. On October 2017, it peaked at number 10 on the "Billboard" US Mainstream Rock Songs chart. "Less Than"