Useful tips for everyday
Are device drivers kernel modules? Device drivers are usually also kernel modules. An example of something that is a “device driver” is a bit harder…
What is PolygonZ? In a PolygonZ , Each Vertex has X, Y, & Z coordinates. In a PolygonM Each Vertex has X, Y, & M.…
What happens to pressure when a shock wave occurs? Across a shock wave, the static pressure, temperature, and gas density increases almost instantaneously. Because total…
Do SQL views use indexes? Yes, the underlying table indexes are used automatically – a view just pulls the data from the underlying tables after…
How do I change my main email address? Step 1: Check if you can change it. On your Android phone or tablet, open your device’s…
Why does my Samsung S5 keep flashing? Go to settings >> system >> About device. Find “Build number” and click 6 times fast on it.…
What is an Airvo machine? The AIRVO is a humidifier with integrated flow generator that delivers warmed and humidified respiratory gases to spontaneously breathing patients.…
Is there a way to crop an image? The crop image function is, as the name suggests, reserved for photos and image files only. This…
How far can HC-SR04 measure? 2 to 400 cm According to the sensor specifications, HC-SR04 has a range of 2 to 400 cm. To measure…
Why do we need an op-amp? An operational amplifier is an integrated circuit that can amplify weak electric signals. An operational amplifier has two input…