How do you increase the depth of field on a microscope? Place your aperture in front of the microscope lens centering the aperture. For some gross-specimen low-magnification ‘scopes, this is relatively easy since the lens is quite large. The field-stop acts as an outboard aperture to limit the light entering the lens to the centre. […]
What are the mechanical properties of metals?
What are the mechanical properties of metals? Key mechanical properties of metals include: Strength. Ductility and Malleability. Toughness. Fatigue Resistance. Hardness. What is mechanical toughness? In materials science and metallurgy, toughness is the ability of a material to absorb energy and plastically deform without fracturing. One definition of material toughness is the amount of energy […]
What is the best way you can evaluate if you have take effective notes?
What is the best way you can evaluate if you have take effective notes? To aid in reviewing these kind of notes, try to read each main point and summarize it yourself without looking too much at your notes. Use your notes to test yourself on how much you actually know rather than simply rereading […]
Can resist a shear stress by static deflection?
Can resist a shear stress by static deflection? A fluid is a substance that deforms continuously when subjected to even an infinitesimal shear stress. Solids can resist tangential stress at static conditions undergoing a definite deformation while a fluid can do it only at dynamic conditions undergoing a continuous deformation as long as the shear […]
What happens when methane reacts with carbon dioxide?
What happens when methane reacts with carbon dioxide? Carbon dioxide reforming of methane produces synthesis gas with a low hydrogen to carbon monoxide ratio, which is desirable for many industrial synthesis processes. This reaction also has very important environmental implications since both methane and carbon dioxide contribute to the greenhouse effect. What are the 6 […]
Why is Carnot cycle important?
Why is Carnot cycle important? The Carnot engine — or the Carnot cycle — is important because it describes a heat engine that uses reversible processes that can be handled theoretically. Then we could use the real heat engine to power a Carnot cycle heat pump. During this isothermal expansion heat Qh flows into the […]
How do I find the right answer?
How do I find the right answer? Cunningham’s Law states “the best way to get the right answer on the internet is not to ask a question; it’s to post the wrong answer.” The concept is named after Ward Cunningham, father of the wiki. How do you say correct answer? Synonyms for Correct answer right […]
What is shearing stress force?
What is shearing stress force? Shearing Stress is defined as: “A type of stress that acts coplanar with cross section of material.” Shear stress arises due to shear forces. They are the pair of forces acting on opposite sides of a body with the same magnitude and opposite direction. What is shear stress in fluid […]
What is maintenance of tools and machine?
What is maintenance of tools and machine? Construction regulations require inspections of vehicles, tools, machines, and equipment before use. Preventive maintenance is the systematic care and protection of tools, equipment, machines, and vehicles in order to keep them in a safe, usable condition, that limits downtime and extends productivity. How do you maintain tools and […]
What are two health problems caused by smoking?
What are two health problems caused by smoking? Smoking causes cancer, heart disease, stroke, lung diseases, diabetes, and chronic obstructive pulmonary disease (COPD), which includes emphysema and chronic bronchitis. Smoking also increases risk for tuberculosis, certain eye diseases, and problems of the immune system, including rheumatoid arthritis. What type of hazard is fumes? Prolonged exposure […]