Mobile Application

Android

Android Inc. was founded in Palo Alto, California in October 2003 by Andy Rubin, Rich Miner, Nick Sears, and Chris White.Rubin described the Android project as ``tremendous potential in developing smarter mobile devices that are more aware of its owner's location and preferences``.The early intentions of the company were to develop an advanced operating system for digital cameras, and this was the basis of its pitch to investors in April 2004.The company then decided that the market for cameras was not large enough for its goals, and by five months later it had diverted its efforts and was pitching Android as a handset operating system that would rival Symbian and Microsoft Windows Mobile.

Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreenmobile devices such as smartphones and tablets. Android's user interface is mainly based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, Google has further developed Android TV for televisions, Android Auto for cars, and Android Wear for wrist watches, each with a specialized user interface. Variants of Android are also used on notebooks, game consoles, digital cameras, and other electronics.

IPhone

Development of what was to become the iPhone began in 2004, when Apple started to gather a team of 1,000 employees to work on the highly confidential ``Project Purple``,including Jonathan Ive, the designer behind the iMac and iPod.Apple CEO Steve Jobssteered the original focus away from a tablet (which Apple eventually revisited in the form of the iPad) and towards a phone. Apple created the device during a secretive collaboration with Cingular Wireless (now AT&T Mobility) at the time—at an estimated development cost of US$150 million over thirty months

iPhone is a line of smartphones designed and marketed by Apple Inc. They run Apple's iOS mobile operating system. The first generation iPhone was released on June 29, 2007, and there have been multiple new hardware iterations since.
The user interface is built around the device's multi-touch screen, including a virtual keyboard. The iPhone has Wi-Fi and can connect to cellular networks. An iPhone can shoot video (though this was not a standard feature until the iPhone 3GS), take photos, play music, send and receive email, browse the web, send and receive text messages, follow GPS navigation, record notes, perform mathematical calculations, and receive visual voicemail. Other functionality, such as video games, reference works, and social networking, can be enabled by downloading mobile apps. As of January 2017, Apple's App Store contained more than 2.2 million applications available for the iPhone.

Swift

Swifts are the fastest of birds. Larger species are amongst the fastest fliers in the animal kingdom, with the white-throated needletail having been reported flying at up to 169 km/h (105 mph).`{`6`}` Even the common swift can cruise at a maximum speed of 31 metres per second (112 km/h; 70 mph). In a single year the common swift can cover at least 200,000 km.`{`7`}`
Compared with typical birds, swiftlet wings have proportionately large wingtip bones. By changing the angle between the wingtip bones and the forelimb bones, they are able to alter the shape and area of their wings, maximizing their efficiency and maneuverability at various speeds.`{`8`}` Like their relatives the hummingbirds, and unlike other birds, they are able to rotate their wings from the base, a trait that allows the wing to remain rigid and fully extended deriving power on both upstroke and downstroke.`{`9`}` The downstrokes produces both lift and thrust, while the upstrokes produces a negative thrust (drag) that is 60% of the thrust generated during the downstrokes, but simultaneously it contributes with a lift that is also 60% of what is produced during the downstroke. This flight arrangement could also have benefits for the bird's control and maneuverability in the air.`{`10`}`
The swiftlets or cave swiftlets have developed a form of echolocation for navigating through dark cave systems where they roost.`{`11`}` One species, the Three-toed swiftlet, has recently been found to use this navigation at night outside its cave roost too.