Definition. Protein in urine â known as proteinuria (pro-tee-NU-ree-uh) â is any excess amount of protein found in a urine sample. Protein is one of the substances identified during urinalysis, a test to analyze the content of your urine. Low levels of protein in urine are normal. Temporarily high levels of protein in urine aren't unusual either, particularly in younger people after exercise or during an illness. If a urinalysis shows you have protein in your urine, you might have a follow-up test that determines how much protein is present and whether it's a cause for concern.
aerodynamics definition. The branch of science devoted to the study of the flow of gases around solid objects. It is especially important in the design of cars and airplanes, which move through the air. Note: A vehicle that has been built to minimize friction with the air is said to be aerodynamically designed.
Aerodynamics Aerodynamics is the study of forces and the resulting motion of objects through the air. Studying the motion of air around an object allows us to measure the forces of lift, which allows an aircraft to overcome gravity, and drag, which is the resistance an aircraft âfeelsâ as it moves through the air. Everything moving through the air (including airplanes, rockets, and birds) is affected by aerodynamics. In this section, we will explore how lift and drag work at both subsonic speedsâslower than the speed of soundâand, later, at supersonic speedsâfaster than the speed of sound.