An old brick has a natural cavity on one side, providing a cool daytime slug hiding place. Look under any you have around the garden and dispose of the slugs found sheltering. Purposely position a few to create slug shelters, and check daily. A brick also makes a handy squishing implement.
Q Angle of the Knee. The Q angle of the knee is a measurement of the angle between the quadriceps muscles and the patella tendon and provides useful information about the alignment of the knee joint.
History of Q angle. The Quadriceps Angle was first described in 1847 by Cruveilhier as the angle between the vector of the quadriceps tendon and the vector of the patellar tendon. Clinically, these vectors are simplified as lines from the anterior superior iliac spine to the midpatella and from the midpatella to the tibial tubercle.