How often should a crane be inspected and by whom?

How often should a crane be inspected and by whom? OSHA requires that all active cranes must be inspected once a year at the minimum. However, depending on the cranes usage, additional inspections will be required. Crane inspections fall under two general categories based on the intervals between inspections. How often does a crane need […]

What is the best F ratio for astrophotography?

What is the best F ratio for astrophotography? Fast f/4 to f/5 focal ratios are generally best for lower power wide field observing and deep space photography. Slow f/11 to f/15 focal ratios are usually better suited to higher power lunar, planetary, and binary star observing and high power photography. Medium f/6 to f/10 focal […]

How do you explain ionic bonding?

How do you explain ionic bonding? Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion. […]

Can you have Lyme disease without knowing?

Can you have Lyme disease without knowing? If a person doesn’t have signs or symptoms of Lyme disease, then the person does not have Lyme disease as the definition of disease requires symptoms. A blood test may be positive for several reasons. What are the neurological symptoms of Lyme disease? Neurological complications most often occur […]

What is the most difficult part of research?

What is the most difficult part of research? Introduction What are the most problem of the students in writing research? The study explored various and common challenges/difficulties during writing the research proposals and projects such as: difficulty in deciding the topic for research, lack of good knowledge of the methodology, inability of finding modern, specialized […]

Why bandwidth of digital signal is infinite?

Why bandwidth of digital signal is infinite? A true square wave has a vertical line for its face. That is, an increase from Vmin to Vmax in zero seconds. Anything (except zero) divided by zero is infinity. In reality it takes time for the voltage to rise from Vmin to Vmax, and so there is […]

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