Useful tips for everyday
What is the difference between df and du? df vs. du. The (very complicated) answer can be best summarized like this: The df command provides…
Which filter has non-linear phase response? The Elliptic filtered signal exhibits the most non-linear phase response out of the filters. What are nonlinear filters give…
How much current does a DC power supply draw? In both loops the same amount of charge flows into and out of the PSU on…
Why do motorcycles require more maintenance than cars? How come bikes require much more maintenance and care? Firstly, the engines are generally more highly-strung. Secondly,…
What is Do Not Track option in Firefox? To always use Do Not Track: In the Menu bar at the top of the screen, click…
How do I recover files after deleting partition? Select (filter only Healthy files, if deleted files are not in your interest) and recover files you…
What to do if a GeoWebCache request misses cache? If the request misses cache but no reason is given ( geowebcache-miss-reason: blank) then check the…
Which is easier to use, leaflet or OpenLayers? The Leaflet is designed as easy-to-use and light-weight library. So you can start to develop a map…
What is lift equation? Cl = 2 * pi * angle (in radians) The modern lift equation states that lift is equal to the lift…
How does a polyalphabetic cipher work? A polyalphabetic cipher is any cipher based on substitution, using multiple substitution alphabets . The encryption of the original…