What is the difference between survival of the fittest and natural selection? “Survival of the fittest” is a popular term that refers to the process of natural selection, a mechanism that drives evolutionary change. Natural selection works by giving individuals who are better adapted to a given set of environmental conditions an advantage over those […]
How do I check my Etabs time period?
How do I check my Etabs time period? The time period (the one-story model of the structure is below) calculated manually by using the equation in IS 1893: 2016 is 0.170963 and that given by Etabs 2017 is 0.171 (highlighted in the picture below). How do you calculate time period of vibration? As the frequency […]
What is the application of third law of thermodynamics?
What is the application of third law of thermodynamics? The third law of thermodynamics states that the entropy of a perfect crystal at a temperature of zero Kelvin (absolute zero) is equal to zero. Entropy, denoted by ‘S’, is a measure of the disorder/randomness in a closed system. All the atoms and molecules in the […]
Is a primary wave transverse?
Is a primary wave transverse? When seismic waves are first created, they travel outwards in all direction from their source. Body waves travel through the interior of the earth, and have two main types: P-Waves (Primary waves) are Longitudinal Waves. S-Waves (Secondary waves) are Transverse Waves. Do P or S waves cause more damage? S […]
Does positive and negative matter with lights?
Where does the dark go when you turn on the light?
How is pressure maintained in a reactor?
How is pressure maintained in a reactor? As shown above, mass flow meters are often used to control the input of various gases (and sometimes liquids) into the heated reactor containing the catalyst sample. A back pressure regulator is typically used on the exit of the reactor to maintain stable pressure control for the catalysis […]
Does an MRI show broken bones?
Does an MRI show broken bones? MRI is sensitive to changes in cartilage and bone structure resulting from injury, disease, or aging. It can detect herniated discs, pinched nerves, spinal tumors, spinal cord compression, and fractures. What can an MRI see that a CT scan Cannot? Where MRI really excels is showing certain diseases that […]
What is the best anti-vibration material?
What is the best anti-vibration material? Rubber Where are vibration isolators used? Vibration Isolation Pad Mounts Pads or sheets constructed of flexible materials such as elastomers, rubber, cork, dense foam and laminate materials are often used under heavy machinery, under common household items, in vehicles and other applications to reduce noise and vibration transmission. What […]
Do Low flow shower heads save money?
Do Low flow shower heads save money? Low flow showerheads reduce both water and energy usage, since reducing the amount of water used by the shower will also reduce the amount of energy used to heat it. In doing so, low flow showerheads also reduce the amount of money spent on utilities. Are Low flow […]