Useful tips for everyday
How do I attach a file in visualforce? Upload a file as an Attachment to a record using Visualforce Step 1: Create an Apex class…
What does a SOSL query return? The SOSL query returns records that have fields whose values match Wingo. Based on our sample data, only one…
How do you use two minds? 1. I was in two minds about the book . 2. I was in two minds about leaving London;…
How do you know how much weight a motor can move? The formula that relates mass, force and acceleration is: F = m*a , where…
Can PCB be made at home? Take a plastic box and fill it up with some water. Dissolve 2-3 teaspoons of ferric chloride power in…
How is a hot air balloon powered? Hot Air Balloon Burners The burner mixes liquid propane from pressurised gas tanks with oxygen and ignites it.…
Do Racing Drones have gyros? It’s a circuit board with a range of sensors that detect movement of the drone, as well as user commands.…
What factors should be considered in quadcopter motor selection? A good rule of thumb for a quadcopter is to aim for a 4:1 power to…
What is a buffer overrun vulnerability? A buffer overflow, or buffer overrun, occurs when more data is put into a fixed-length buffer than the buffer…
How to reverse Elf 64 bit LSB executable? (gdb) break *0x40489c Breakpoint 1 at 0x40489c (gdb) run Starting program: /bin/ls warning: Could not load shared…