How to dim the screen even more?

Working with MacBook Air in the dark is quite comfortable in one hand and uncomfortable in another hand. It has a nicely built backlit keyboard which let Mac newbie like me to find the keys easily. However, the LCD screen is too bright in the low light condition, even in the lowest brightness setting.

How to playback Motion JPEG encoded video?

Yesterday I tested an Android app called "TimeLapse!" by ExplorerDC to record a timelapse video. That software is very easy to use and create high quality video, and free of charge. It produces video in AVI format which is motion jpeg encoded. It playbacks well in my Windows machine, but it doesn't play on my new MacBook Air!

How to run Chrome with different profiles?

I have quite a number of Google accounts for different projects. In windows, I use to setup different chrome profiles so i don't need to login and logout different accounts. The way to achieve that is easy, just specify a commandline switch to start the app and all works perfectly. How to do that in Mac?

Viewing DICOM images in Mac - OsiriX

DICOM is a file format for medical imaging which is used worldwide to store patients' CT scan, MRI scan, etc. Why is it related to Mac Beginner? Not really. In the old days i worked in the medical industry, i heard of a Mac software called OsiriX many times, recommended by many medical professors. Some even wanted me to create a similar software in Windows!