Author: lixsu92
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What is Refrigerator
Prior to the invention of refrigerators, food preservation imposed serious constraints. The best options were to suspend food in rivers, wells, or at the bottom of lakes, and absent these tactics, stable foods were heavily salted, spiced, pickled, or dried to prevent bacterial growth. With the industrial age, we began to understand thermodynamic cycles and—through…
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Did You See How Poor People Can Be?
One day a very wealthy father took his son on a trip to the country for the sole purpose of showing his son how it was to be poor. They spent a few days and nights on the farm of what would be considered a very poor family. After their return from the trip, the…
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You will Laugh ?
Five facts about You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You You…
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Android Activity Lifecycle
Willing to develop your own apps? Here i will bring you some basics about it. For me, the most basic thing before doing an android apps is knowing how the screen can be populated with fancy UI like in whatsapp, facebook, etc and destroy it. Android will do couple of actions from you pressed your…
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Pulse Width Modulation
Pulse width modulation (PWM) is a powerful technique for controlling analog circuits with a microprocessor’s digital outputs. Consider to control a 5V DC motor with linear relation between given voltage and rotation speed with a 5V microcontroller, then you need it to works on 3V for achieve slower rotation. This goal can be achieved at…
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Git in Nutshell
Git is kind of version control system (VCS) which would keep track every lines of your code so that you can recall specific versions later. Using a VCS also generally means that if you screw things up or lose files, you can easily recover. First thing first, let’s get your git : Git for OS X Git for…