1Understand how your lock works. The pin-and-tumbler lock consists of a cylinder that can rotate within its housing (see the illustrations below). When locked, the cylinder is kept in place by several pairs of pins. The top pin of each pair protrudes into both the cylinder and the housing, thus preventing the cylinder from turning. When the correct key is inserted, it pushes the pairs of pins up so that the top pins no longer enter the cylinder. When this happens, the cylinder can be turned and the lock will open.

Note the five pairs of pins. The yellow pins enter both the cylinder and the silver housing around it. The springs provide resistance to keep the pins in place.

A mermaid is a legendary aquatic creature with the upper body of a female human and the tail of a fish. 

There are four main class in engineering which include electrical and electronic engineering,chemical engineering, mechanical engineering and civil engineering.

If you really care,do some comfortable thing as you can

The City of Arts and Sciences in Valencia is a unique complex devoted to scientific and cultural dissemination which is made up of five main elements: the Hemisfèric (IMAX cinema and digital projections), the Umbracle (a landscaped vantage point and car park), the Príncipe Felipe Science Museum (an innovative centre of interactive science), the Oceanográfico (the largest aquarium in Europe with over 500 marine species) and the Palau de les Arts Reina Sofía (which takes care of the operatic programme). The Ágora gives the complex a multifunctional space.

KUALA LUMPUR, May 9 — NEP-style affirmative action policies have failed because of corruption and weak implementation, said the country’s main Malay business group, as it pledged backing for any administration that could practise good governance.

By Syed Jaymal ZahiidKUALA LUMPUR, May 7 — Barisan Nasional chairman Datuk Seri Najib Razak has dismissed polls data showing an urban-rural divide and defended Utusan Malaysia against accusations of racism after the Umno-owned paper blamed the Chinese for the coalition’s poor showing in the May 5 polls.