What is the basic principle of paper chromatography? Principle of paper chromatography: The principle involved is partition chromatography wherein the substances are distributed or partitioned between liquid phases. One phase is the water, which is held in the pores of the filter paper used; and other is the mobile phase which moves over the paper. […]
What is the physics behind an egg drop?
What is the physics behind an egg drop? While at rest, the egg has potential energy. The egg gains potential energy as it is transported to a higher elevation for performing the egg drop experiment. Once dropped, it will fall. This demonstrates kinetic energy. How do you make a successful egg drop project? Procedure Come […]
What is the purpose of the paper chromatography experiment?
What is the purpose of the paper chromatography experiment? Paper chromatography, in analytical chemistry, technique for separating dissolved chemical substances by taking advantage of their different rates of migration across sheets of paper. It is an inexpensive but powerful analytical tool that requires very small quantities of material. What is paper chromatography and how does […]
What brain waves increase intelligence?
What brain waves increase intelligence? For example: Our brain uses 13Hz (high alpha or low beta) for “active” intelligence. Are binaural beats good for studying? How to Use Binaural Beats for Studying. Binaural beats are nothing new. Binaural beats can help. Binaural beats in the Gamma frequency (higher frequency beats) tend to show promise in […]
How do you measure brain waves?
How do you measure brain waves? We can measure brain waves using a technique known as electroencephalography (EEG), in which small detectors, called electrodes, are placed on a person’s head [1]. What machine reads brain waves? Biofeedback headsets measure your brain waves, using EEG. They’re small bands that sit easily on your head and measure […]
Why do we need reliability in research?
Why do we need reliability in research? Think of reliability as consistency or repeatability in measurements. Not only do you want your measurements to be accurate (i.e., valid), you want to get the same answer every time you use an instrument to measure a variable. This makes reliability very important for both social sciences and […]
What do brain waves tell us?
What do brain waves tell us? Brain waves are relevant to mental health, as abnormalities in brain functioning can influence the development of certain conditions. For example, when certain areas of the brain are over-aroused, an individual may experience anxiety, nightmares or other sleep problems, impulsivity, and aggression. What are the four basic EEG patterns? […]
What are the types of validity in research?
What are the types of validity in research? Here are the 7 key types of validity in research: Face validity. Content validity. Construct validity. Internal validity. External validity. Statistical conclusion validity. Criterion-related validity. What affects internal and external validity? Internal validity refers to the degree of confidence that the causal relationship being tested is trustworthy […]
Does brain waves really work?
Does brain waves really work? The brainwave entrainment effectively pushes the entire brain into a certain state. Brainwave entrainment works for almost everyone. It is a great way to lead your mind into states that you might usually have difficulty reaching, allowing you to experience what those states feel like. What is the study of […]
Why Writing is so hard?
Why Writing is so hard? We end up thinking about writing, wanting to be writing, dreaming about writing, but not actually putting pen to paper or hands to keyboard very often. Days, or even weeks, may pass between writing sessions. Being out of practice or inconsistent with your writing schedule is a big reason for […]