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Freidrichs
cell theory
Lasers don't really "make use" of either the wave or particle nature of light. Or they make use of both. But because a laser emits what is called coherent light, it could be argued that the wave nature of light is best at describing the light the laser emits.Lasers make use of Boltzmann energy distribution statistics, which doesn't have anything to do with the particle or wave description of light. Lasers work by creating a population inversion in a chemical compound which creates stimulated emission when excited.Light has both wave-like and particle-like properties at the same time. It is said to exhibit particle-wave duality. Light is what it is -- the fact that we describe it using both a particle and a wave description is only a reflection of our inability to fully describe light in using one single intuitive model (because we have no intuitive experience with things that have both wave and particle properties simultaneously).
When you lift a brick and throw it, nobody asks which inertial frame of reference you are using. No.
Scientists first thought of them as small animals. They first observed cells using the microscope and the work of many scientists led to the development of the cell theory.
Freidrichs
Linemen work on live wires by using proper insulation gear, and by making sure that there is never any path for current to flow in case the insulation does fail. In some cases, the lineman can be raised to the potential of the line, but you still need the insulation, and you still need the technique of ensuring that no circuit can be accidentally created.
Plastic can be a lot of things, some will work well as insulation, some won't.
Insulation keeps houses either warm or cool. Insulation traps air, the best insulator.
Yes, Home Depot offers roof insulation services. Home Depot is a great resource in home improvement. You can save more money by using Home Deopt over paying a contractor to do the work for you.
The Particle Theory has 4 laws:1) All matter is composed of particles2) These particles have spaces between them3) These particles are always moving4) Particles are attracted to each otherThe theory is used to explain how every day things work. For example dissolving can be explained as the particles are simply rearranging themselves to fit between other particles.*Note the word theory in the title, it is there for a reason. This is purely hypothetical and has not been proven... yet.*Also particles have also been referred to as molecules.
It's important because it's the particle that gives everything mass (kinda like weight) in Physics. If this particle doesn't exist, it means that all of the science we have relied on so far in Physics, is wrong. This includes Einstein's General Theory of Relativity, or the greatest work Einstein is known for (E=mc2). That's why it's important.
Copper is : a good conductor, easy to work, and relatively cheap. And you use the insulation to help avoid shorts.
it stops the air circulating
Cecilia Laurente is known for her work in the field of nursing. In her theory of nursing practice, she emphasized effective communication and championed using the family as an entry point to help a patient.
Abdus Salam won the Nobel Prize in Physics in 1979 for his contributions to the theory of the unified weak and electromagnetic interaction between elementary particles, now known as the electroweak theory. His work helped establish the Standard Model of particle physics.
it blockes all of the hole to keep the air in