What are qualitative instruments? (with photo)
Focus groups can be used to determine the qualitative factors that play a role in a specific opinion. Qualitative instruments …
Science
What is a truss system? (with pictures)
A roof truss provides support for a roof. In architecture or structural engineering, a truss system is an arrangement of …
What is an EMP? (with pictures)
Earth’s magnetic field can capture the magnetic field associated with a large explosion, producing a coherent oscillating electric current. An …
What is circular motion? (with pictures)
Uniform circular motion can be seen in a Ferris wheel. In the field of physics, circular motion is a term …
What are continuous variables? (with pictures)
Temperature can have an infinite number of values between two points. Variable is a term used to describe something that …
What is sodium? (with photos)
Sodium is the main component of table salt. Sodium is an abundant metallic element, an important mineral for all living …
What is impedance? (with photos)
A multimeter can be used to measure impedance. In electrical engineering, impedance is a measure of the extent to which …
What is a theory? (with photos)
Charles Darwin is credited with developing a persuasive argument for the theory of evolution. The word “theory” means several different …
What is Medical Biochemistry? (with photos)
Biochemists remain at the forefront of scientific discovery. Medical biochemistry is the formal study of the biochemical changes that occur …
What is oxidation? (with photos)
A freshly cut apple turns brown, a bicycle bumper rusts, and a copper coin suddenly turns green. What do all …