Useful tips for everyday
What is the sign convention for shear stress? The sign convention for normal stresses is the familiar one, namely, tension is positive and compression is…
What type of engineers build electronics? Electronics engineers analyze the requirements and costs of electrical systems. Electrical engineers design, develop, test, and supervise the manufacture…
How does magic arm work? A Magic Arm consists of, starting in the center, a large metal pivot joint with a large plastic locking knob…
How do you find the moment of multiple forces? Note: Special case: the moment of force F = F1i + F2j applied at (x, y)…
What does do not scale drawing mean? At the end of the day, “do not scale drawing” tells the contractor not to take the drawing…
Why are vacancies referred to as equilibrium thermodynamic defects? Why are vacancies referred to as equilibrium thermodynamic defects? Formation of a vacancy leads to ‘missing…
Can I use cold water in air cooler? I intuitively thought that indeed cold water will produce colder air. But as we all know evaporative…
What is boundary conditions in FEM? Boundary conditions (b.c.) are constraints necessary for the solution of a boundary value problem. A boundary value problem is…
How do you power an Arduino board? The Arduino Uno can be powered via the USB connection or with an external power supply. The power…
What are the advantages of FPGA based design over ASIC design? FPGAs usually cost more upfront than a microprocessor or ASIC. Microprocessors have a lower…