“A helical scan tape will gradually be wound around a rotating drum causing dust to be dragged in between the tape and the head.”

“The bacterial flagellar filament is a helical, self-assembling polymer of flagellin monomers.”

“It has been proposed that the fusion peptide is obliquely inserted into the target membrane as a flexible monomer in an helical conformation.”

“Each inflorescence produces 200-300 flowers that have a helicoidal repartition and open in sequence from bottom to top.”

“Thirteen pages with drawings for man-powered aeroplanes survive and there is one design for a helicoidal helicopter.”

“Due to the helicoidal shape of the impeller, the transfer of the product is gentle and without clogging.”