---

• r  straight up or down without a break
• r  in a perpendicular manner
  this red line runs perpendicularly to the green line

• If light filtered through a polarizing crystal encounters a second crystal whose cleavage plane is turned perpendicularly, it cannot get through.
• In his plans Architect Wright has "overturned the pyramids and lengthened their lines perpendicularly.
• In three years, production of aluminum has risen almost perpendicularly, from 327,000,000 lb.

• sheer

News & Articles

---

• Safety on Our Lakes: You Get What You Pay For
  On July 14, on Sylvan Lake in suburban Detroit, MI, three children were being pulled in a tube by their father driving a jet ski when another boat moving perpendicularly struck the tube. The boat driver said he saw the personal watercraft, but not the tube. The children were rushed to a nearby hospital where [...]
  July 25, 2013 - Injury Board