Psychology
This Russian physiologist is famous for his experiments on classical conditioning using dogs and bells.
This process, often the first step in water treatment, involves adding chemicals like alum to clump together dirt and other particles.
What is coagulation?
This heavy piece of equipment, featuring a large bucket on an articulated arm, is used for digging trenches and foundations.
What is an excavator?
This chemical, a key ingredient in embalming fluid, works by disinfecting and temporarily preserving tissue.
What is formaldehyde?
This process involves stepping through code line by line to find and fix errors.
What is debugging?
This term, coined by Freud, refers to the part of the mind containing thoughts, memories, and urges outside of conscious awareness.
What is the unconscious (mind)?
During this stage, the small clumps formed by coagulation grow larger through gentle stirring, forming what are called "flocs."
What is flocculation?
This giant machine, fixed to the ground and often seen towering over urban construction sites, is used to lift heavy materials to great heights.
What is a crane?
This natural stiffening of muscles after death, which must be manually massaged out before positioning, typically sets in within a few hours and resolves within 1–3 days.
What is rigor mortis?
This markup language forms the basic structural skeleton of nearly every webpage.
What is HTML?
This controversial 1971 study, led by Philip Zimbardo, simulated a prison environment using college students.
What is the Stanford Prison Experiment?
This stage of wastewater treatment uses microorganisms to break down organic matter in sewage.
What is secondary treatment (activated sludge process)?
This set of legally enforced standards ensures that buildings are structurally safe, accessible, and meet minimum requirements.
What is a building code?
During embalming, this artery is most commonly used as the injection point to distribute embalming fluid throughout the body.
What is the carotid artery?
This term describes a piece of reusable code that performs a specific task and can be called with different inputs.
What is a function?
This term describes the mental discomfort experienced when holding two contradictory beliefs, studied extensively by Leon Festinger.
What is cognitive dissonance?
This measurement, expressed in NTU, indicates the cloudiness or haziness of water caused by suspended particles.
What is turbidity?
These vertical steel bars are embedded within concrete to give it added tensile strength, since concrete alone is strong under compression but weak under tension.
What is rebar?
This long, hollow, pointed instrument is inserted into the abdominal and thoracic cavities to aspirate gas and fluid before injecting a preservative chemical directly into the organs.
What is a trocar?
This popular version control system, created by Linus Torvalds, allows developers to track changes and collaborate on code.
What is Git?
This statistical error occurs when a researcher rejects a true null hypothesis — concluding an effect exists when it actually doesn't.
What is a Type I error?
his process removes calcium and magnesium ions from hard water by exchanging them for sodium or potassium ions, typically using resin beads.
What is ion exchange (water softening)?
This process, in which saturated, loose soil temporarily loses strength and behaves like a liquid during an earthquake, poses a major risk to building foundations.
What is soil liquefaction?
These small, dome-shaped plastic discs, often textured with tiny barbs or ridges on the convex side, are placed under the eyelids to keep them closed and give the eyes a natural, slightly rounded appearance.
What are eye caps?
This searching algorithm repeatedly divides a sorted list in half to quickly locate a target value.
What is binary search?