Choosing a smartphone?Difference between Android OS 4.2 and Android 4.4

kitkat is leftmost while jellybean rightmost side

Navigation bar
In Android 4.4, the navigation bar is displayed in immersive mode. This means that the navigation bar is translucent regardless of the applications being used and blends with the application colour. It is also customisable. In 4.2, the navigation bar is opaque and has black colour. Moreover,it is not customisable.

Compatibility
“Android 4.4 is designed to run fast, smooth, and responsively on a much broader range of devices than ever before — including on millions of entry-level devices around the world that have as little as 512MB RAM.”

Google Now
In some devices, Google Now can be accessed from the lock screen, or without touching your device all with voice activation on Android 4.4.
It enables users to enjoy services such as weather information, launch an application like Google Maps, play music, browse the web through voice activation.
In Android 4.2, the Google Now has to be downloaded from Google Search.

Music
In Android 4.4, Lock screen allows users to browse through all songs or movies from the lock screen. In Android 4.2, this function is limited whereby, a user controls and skips to the next track in Google Music.

Harmony of seas. World largest cruise ship.

Weight and features It weighs about 227,000 tons. It consists of a host of architectures including water slides, indoor rock climbing, ice-skating rink amongst others. Robot bartenders It features a “bionic bar” where two robotic bartenders serve drinks. The cruise The largest cruise ship in the world will take off from Southampton, England to Rotterdam in Netherlands. It was built by STX France at the Chantiers de l'Atlantique shipyard in Saint-Nazaire, France for Royal Caribbean International.The ship is heavier than MS Oasis of the Seas and MS Allure of the Seas by 2,000 tons, and longer by 2metres or 7 feet. Construction was completed in 19 June 2015, and delivered to Royal Caribbean on 12 May 2016.

Flying cars?Skycar

The skycar is an invention developed in 2009 by the skycar expedition team. The team included aviation engineer, Gilo Cardozo, a reknowned paraglider and inventor of parajet.He is also known for successfully flying to Mount Everest in his Wankel rotary-powered Parajet.It is an improvement of the balloon car. Cardozo explained, "the skycar can move from road mode to flymode in 3minutes." ZIt could take off after attaining an average speed of 35mph when switched to fly mode. The Skycar was to be different from other flying cars through its method of staying aloft. In the prototype stages, the vehicle used a similar method of flight as Cardozo's Parajet -- a parawing that is force-fed with air by a large fan. The fan was driven by a 140-horsepower Yamaha sportbike engine.The team said that an air speed of 100 mph was possible at an altitude of 2,000 to 3,000 feet. It was expected to accelerate from 0-60mph in 45 seconds. The team made its test flight between London and Tumuk...

Producing electricity from roads

A mexican scientist Marcias Hernandez has developed a system through which can help generate electricity using automobiles. The concept he developed is not new because other methods exists but is cheaper and less complicated. Other conventional methods have been using pizoelectric effect to generate electrity. Energy is driven from the stress exerted by moving vehicles. The energy is then coverted into electricity and stored in batteries by the roadside. Marcias new invention involves the use of trumps, which moving vehicles exert pressure when running over a polymer ramp. Air is then forced at high pressure into a storage tank via hose pipes where it is stored and released. When it accumulates, it drives a turbine built underground. The turbine will then use this kinetic energy to be converted into electric energy by the generators. Israel has already constructed such a road system that is able to generate electricity.

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