How far in advance should one book long haul flights?

Long Haul flights often seem more expensive 10 months in advance than they are 3-4 months before departure; for short haul it's exactly the opposite.

Price for UK to China return flights in high season (July-August) for one adult and two children over 2:
2 Feb     £1,782
26 Mar   £1,752
18 Apr   £1,731

Why MacBook Pro's battery never show a full charge 100%?

Whenever my MacBook's battery is 99% full, it stays there and never become full charged (100%). This is normal. The batteries used in Macs are designed to avoid continuous charging or short cycle charging, i.e. the battery drops 1 or 2 % then charges back to 99%, which will shorten battery life. It is the best to let the battery run down to below 40% every now and then and then do a full recharge (between 95-99%).

When setting the Mac OS X battery status menu bar icon to display charge state by percentage, you may notice that the reported charge stays between 95 percent and 99 percent. The adapter will not charge the battery to 100% automatically if it will add additional wear to the battery.

Therefore, if your battery status stays at 95-99% and not charging you can disconnect the charger.

Common display resolutions

Acronym	Aspect ratio	Width (px)	Height (px)
FHD	16:9	1920	1080
HD+	16:9	1600	900
HD	~16:9	1366	768
SXGA	5:4	1280	1024	LCD monitors
XGA	4:3	1024	768
WSXGA+	16:10	1680	1050
WXGA+	16:10	1440	900
WXGA	16:10	1280	800	Wide aspects
UXGA	4:3	1600	1200	gamers, graphic artists

Computer monitors have higher resolutions than most televisions. As of July 2002, 1024 × 768 Extended Graphics Array was the most common display resolution. Many web sites and multimedia products were re-designed from the previous 800 × 600 format to the layouts optimized for 1024 × 768. The availability of inexpensive LCD monitors has made the 5:4 aspect ratio resolution of 1280 × 1024 more popular for desktop usage.

Many computer users including CAD users, graphic artists and video game players run their computers at 1600 × 1200 resolution (UXGA) or higher if they have the necessary equipment. Other recently available resolutions include oversize aspects like 1400 × 1050 SXGA+ and wide aspects like 1280 × 800 WXGA, 1440x900 WXGA+, 1680 × 1050 WSXGA+, and 1920 × 1200 WUXGA. A new more-than-HD resolution of 2560 × 1600 WQXGA was released in 30" LCD monitors in 2007. In 2010, 27" LCD monitors with the resolution 2560 × 1440 were released by multiple manufacturers including Apple, and in 2012 Apple introduced a 2880 × 1800 display on the MacBook Pro. Panels for professional environments, such as medical use and air traffic control, support resolutions up to 4096 × 2160.