iPhone

The iPhone  is a Internet and multimedia-enabled smart phones which is designed by Apple. iPhone was marketed on June 29, 2007. Features of  iPhones are video camera ,visual voicemail, Portable media player, E-mail and Web browsing capability, Wi-Fi and 3G connectivity, Multi-Touch Screen, virtual keyboard, 2G Network, Accelerometer sensor for Auto-Rotate, Proximity Sensor for Auto Turn-Off, Scratch-Resistant Surface, Unlimited Phonebook Entries and Fields, Photocall, Internal Memory 4/8/16 GB, internal rechargeable battery.

Solar Power Electronic System or Technology

Solar Power System is the conversion system of sunlight into electricity. There are two types of technology in solar power system - Directly using Photovoltaics Solar Power   and  Indirectly using Concentrated Solar Power. Photovoltaic technology is a reliable and produce pollution free  electricity. Lenses or Mirrors and Tracking systems are used  to focus a large area of sunlight  In Concentrated solar power technology. To use Solar Power System, you need some components as Battery, Solar Panel, Solar Panel Mount, Charge Controller, Inverter, Metering.

A Tablet PC

A Tablet PC is a Wireless, Portable, Lightweight Version of a Personal Computer which shape is flat, with a LCD touch screen,  large than a smart phone and and running a standard operating system like Windows or Linux. Tablet PC is powerful which supports all applications with operation systems as Windows Xp, Windows XP Professional, iOS or Android,. Monitor, Keyboard, Mouse and other devices can be used in Tablet PC. The smaller screen in the a Tablet PC is 7 Inch to 10 Inch which fits to carry and take in pocket. Intel Pentium III (above 800MHz) is currently used in Tablet PC.

Environment and Pollution

What is environment ? The environment refers to the air, water, and land in which people, animals and plants live. So human beings, animals, plants, air, water, and soil are the main elements of the environment. The natural forces such as storms, cyclones and earthquakes are also a part of this environment. Climate is thus a condition of the environment. All things that make up the environment are interrelated.

The world  is producing millions of tons of domestic rubbish and toxic industrial waste each year, and it is becoming increasingly difficult to find suitable locations to get rid of all the refuse. The disposal of various kings of waste is seriously pollution the environment. We know that air is an important element of our environment and our air is polluted by smoke. Man makes fires to cook food, make bricks, melt tar for road construction and to do may other things.

Forests play a vital role in the total scheme of the world. They not only provide the living space for most of the world’s wildlife but also help humans in various ways. Humans get most of their wood from forest trees. Many plants and trees provide them with vegetables fruits as well. But humans are destroying forest. Trees are being cut down for the wood itself and for wood-pulp which  is used in paper-making. Forests are being destroyed for road-building and to provide land for large herds of cattle to graze on. The effects of this mass destruction of forest could eventually affect us all. Dark forests absorb heat more effectively than lighter crops and grasses. The process of deforestation can altogether change the weather patterns of the world. Even more serious is the greenhouse effect.

Space Shuttle Discovery-NASA

Space Shuttle Discovery  Launched on Final Mission at NASA's Kennedy Space Center on Florida and touchdown on March 9, 2011 at 10:57:17 CST. This mission is commanded by veteran NASA Astronaut Steven Lindsey. Pilot Eric Boe and mission specialists Alvin Drew, Steven Bowen, Michael Barratt and Nicole Stott were also  aboard and  spent one full year in space.

NASA's Launch Schedule

Date: Sept  08, 2011
Mission: GRAIL
Launch Vehicle: Delta II Heavy
Launch Site: Cape Canaveral Air Force Station, Fla.
Launch Times: 8:37:06 a.m. and 9:16:12 a.m. EDT

Date: Oct  25, 2011
Mission: NPP
Launch Vehicle: Delta II
Launch Site: Vandenberg Air Force Base, Calif.
Launch Window: 2:47:35 a.m. - 2:57:35 a.m. PDT / 5:47:35 a.m. - 5:57:35 a.m. EDT

Date:  Nov  25, 2011
Mission: Mars Science Laboratory, Curiosity Rover
Launch Vehicle: Atlas V
Launch Site: Cape Canaveral Air Force Station
Launch Time: 10:21 a.m. EST

Date:  Nov  30, 2011
Mission: SpaceX
Launch Vehicle: Falcon 9/Dragon
Launch Site: Cape Canaveral Air Force Station

Date: Feb, 03, 2012
Mission: NuSTAR
Launch Vehicle: Pegasus XL
Launch site: Kwajalein Atoll