Useful tips for everyday
What is the difference between stored procedure and dynamic SQL? Stored procedures beat dynamic SQL in terms of performance. A stored procedure is cached in…
Is sample standard deviation an estimator of population standard deviation? The standard deviation is a measure of the spread of scores within a set of…
Why does my song sound different on different speakers? You’re hearing not just the direct sound from the speakers but all the reflections bouncing around…
What is the difference between can and RS485? CAN (Controller Area Network) and RS485 are popular standards in fieldbus systems. As RS485 only addresses layer…
How do you separate elements in Illustrator? Select the object to use as a cutter, and position it so that it overlaps the objects to…
What is resonance and its problems? Resonance can be a problem in any machine, as physical structures have natural frequencies that can be excited. Resonance…
What does rfkill mean? Radio Frequencies rfkill is simply a way of resetting computers and smartphones connect via Radio Frequencies (RF) to the internet. It…
How many cells are good for laptop battery? Cells are individual cylindrical compartments in a battery that produce power. As many as 12 cells are…
Do airbags need maintenance? In modern vehicles, airbags do not expire and are designed to last throughout the car’s lifetime. If your car is older,…
What is the inter arrival time for customers? The time difference between arrival of one customer and then the next customer is often referred to…