Category: Physics

Can firewood be too dry? It’s not something that most people complain about very often, but yes, wood can be too dry and burn faster than would be the case at an optimal 10-15% MC. What is the longest burning firewood? Hardwoods such as maple, oak, ash, birch, and most fruit trees are the best […]

Is nothing but the limit between maximum and minimum number? Minimum means the least you can do of something. For example, if the minimum amount of dollars you must pay for something is seven, then you cannot pay six dollars or less (you must pay at least seven). You can do more than the minimum, […]

Why is some food heated unevenly? Why Your Food Is Heating Up Unevenly Microwaves are sending radio waves toward your food, rather than heating it from underneath it like gas ovens. And people tend to pile leftovers with the densest part in the middle, which is why the outer edges will heat up, leaving the […]

What is the best definition of reflection? 1 : an instance of reflecting especially : the return of light or sound waves from a surface. 2 : the production of an image by or as if by a mirror. 3a : the action of bending or folding back. b : a reflected part : fold. […]

Why is it illegal to take pebbles from the beach? You can not legally take sand from the beach as you would be contributing (even if only in a small way) towards the weakening of the defensive barrier the beach provides from the sea to the land. Sand is off-limits though. Why are the beaches […]

Is it OK to be single forever? Yes, it is completely fine to be single forever. As much as everyone wants their lives to have a “Happily ever after”, it generally doesn’t happen. A large amount of people in the world remain single forever, yet they can be some of the happiest people alive. Why […]

What type of light is needed to cause the photoelectric effect? ultraviolet light What is the smallest quantum of light called? photons Why is the mass of a photon zero? But according to special relativity, light ALWAYS travels with the light speed c, and is NEVER at rest. And so it has zero REST mass. […]

Is the phase in which unemployment begins to decrease demand for goods and services increases and GDP begins to rise again? POB – Lesson 1 and 2 Review A B Recovery The phase in which unemployment decreases, demand for goods and services increases, and GDP begins to rise. Inflation: An increase in the general price […]

How do you tell which way the wind is blowing? A weather vane is designed to point directly into the wind. One side of the weather vane will be a narrow, pointed end (usually resembling the tip of an arrow). The other end is made wider to catch the wind. As the wind blows, you […]

What are five communicative styles? From the world of psychology we now know that there are five different styles of communication that individuals can choose to adopt: assertive, aggressive, passive aggressive, manipulative and submissive (Bourne, 1995). What are the 5 communicative styles? The 5 styles of communication have been categorized into assertive, aggressive, passive-aggressive, submissive […]