Showing posts with label INTERNET NEWS. Show all posts
Showing posts with label INTERNET NEWS. Show all posts

Monday, 29 September 2014

Mars Orbiter Mission: Pay lodes

Mars Orbiter Mission carries five scientific payloads to observe Martian surface, atmosphere and exosphere extending up to 80,000 km for a detailed understanding of the evolution of that planet, especially the related geologic and the possible biogenic processes on that interesting planet. These payloads consist of a camera, two spectrometers, a radiometer and a photometer. Together, they have a weight of about 15 kg.




PayloadPrimary ObjectiveWeight (Kg)
Mars Colour Camera (MCC)Optical imaging1.27
Thermal Infrared Imaging Spectrometer(TIS)Map surface composition and mineralogy3.2
Methane Sensor for Mars (MSM)Detection of Methane presence2.94
Mars Enospheric Neutral Composition Analyser (MENCA)Study of the neutral composition of Martian upper atmosphere3.56
Lyman Alpha Photometer (LAP)Study of Escape processes of Martian upper atmosphere through Deuterium/Hydrogen1.97



Lyman Alpha Photometer (LAP)
Lyman Alpha Photometer (LAP) is an absorption cell photometer. It measures the relative abundance of deuterium and hydrogen from lyman-alpha emission in the Martian upper atmosphere (typically Exosphere and exobase). Measurement of D/H (Deuterium to Hydrogen abundance Ratio) allows us to understand especially the loss process of water from the planet. 


Methane Sensor for Mars (MSM)
MSM is designed to measure Methane (CH4) in the Martian atmosphere with PPB accuracy and map its sources. Data is acquired only over illuminated scene as the sensor measures reflected solar radiation. Methane concentration in the Martian atmosphere undergoes spatial and temporal variations. 


Mars Exospheric Neutral Composition Analyser (MENCA)
MENCA is a quadruple mass spectrometer capable of analyzing the neutral composition in the range of 1 to 300 amu with unit mass resolution. The heritage of this payload is from ChandraĆ¢€™s Altitudinal Composition Explorer (CHACE) payload. MENCA is a quadrupole mass spectrometer based scientific payload, capable of measuring relative abundances of neutral constituents in the mass range of 1 to 300 amu, with a unit mass resolution. 


Mars Color Camera (MCC)
This tri-color Mars color camera gives images & information about the surface features and composition of Martian surface. They are useful to monitor the dynamic events and weather of Mars. MCC will also be used for probing the two satellites of Mars-Phobos & Deimos. It also provides the context information for other science payloads. 


Thermal Infrared Imaging Spectrometer (TIS)
TIS measure the thermal emission and can be operated during both day and night. Temperature and emissivity are the two basic physical parameters estimated from thermal emission measurement. Many minerals and soil types have characteristic spectra in TIR region. TIS can map surface composition and mineralogy of Mars.






@copyright ISRO 2014/24/09(Information taken from ISRO Page )

Friday, 19 September 2014

How to Download and Install iOS 8 on iPhone, iPad, or iPod Touch

ios_8_ndtv.jpg
The annual iOS update cycle rolls on. This time, Apple is launching the eighth iteration of its operating system for the iPhone, iPad and iPod touch. iOS 8 will be available as a free download on Wednesday, September 17. The download and update process itself is quite easy, but there are a few important things you should keep in mind before you download iOS 8. Here's a guide to help you through the process with zero fuss.

Will my iPhone, iPad, iPod Touch get iOS 8?

The first thing you should check is whether your Apple device is eligible for the update. Apple has announced that the following devices will get the iOS 8 update:
  • iPhone 4s
  • iPhone 5c
  • iPhone 5s
  • iPod touch 5th generation
  • iPad 2
  • iPad with Retina display
  • iPad Air
  • iPad mini
  • iPad mini with Retina display

apple_devices_ios8_compatible_list.jpg


Backup

The next step is possibly the most important in the process - backup. Apple generally has had a great track record with no major cases of data loss reported after updates, but it is always better to be safe than sorry. We've previously covered the entire process of taking a backup of your iPhone and the steps are very much the same for other Apple devices. Here's how to create a backup of your Apple device.
  1. While you can take a backup of your device on iCloud, we recommend that you use iTunes as the entire process is more reliable, especially if you have spotty connectivity.
  2. Plug in your Apple device to a PC or Mac. Open iTunes and click iPhone (or iPad or iPod Touch) on the top-right, next to iTunes.
  3. Under Manually Back Up and Restore, click Back Up Now to start backing up your Apple device. This process takes some time especially if it's the first time you are backing up data. Make sure you have time to spare before you do this. It took us a little over 40 minutes to take a backup the first time, though your mileage may vary depending upon the storage capacity of your iPhone and how much data you have stored.
  4. Once essential data from the default apps has been backed up, iTunes will ask you if you want to transfer purchases. This basically takes a backup of all the apps installed on your phone, along with data downloaded within those apps. To do this, you will have to sign in with your Apple ID.
iTunes_iPhone_backup_1.jpg

If you don't have access to a computer, then you can use iCloud Backup. Remember that only 5GB is free and you'll have to pay Rs. 60 per month for 20GB of storage on iCloud. But since the actual apps themselves are not backed up to iCloud - only app data is, along with your photos, videos and other information - free storage is usually enough for most.
  1. To start backing up, on your iOS device, go to Settings > iCloud > Storage & Backup.
  2. Turn on the switch marked iCloud Backup. You'll get a warning telling you that your iPhone will not back up to your computer automatically. Tap okay.
  3. Once iCloud Backup is on, tap Back Up Now. This will start backing up your data to iCloud.
Wait for the backup to finish before proceeding further. You should see the Last Backup time (which should appear right below Back Up Now) correspond to something recent once the backup is completed.

Download and install iOS 8

Now that your data is safe, let's see how to download and install the iOS 8 update. You can update your device either directly via Wi-Fi or by connecting it to a PC or Mac and downloading the update via iTunes. Downloading it directly is easier, so let's try that first.
  1. On your iOS device, make sure you're connected to Wi-Fi (you can't download updates over cellular data) and plug it in to a power source.
  2. Go to Settings > General > Software Update
  3. On this screen, you'll see a message telling you your software is up to date. When iOS 8 is released, the message will tell you that a newer version is available. Tap Download and Install.
  4. Now the device will begin downloading the update. Once the download is complete, you'll see a pop-up asking if you'd like to install the update. Tap Install. That's it. When the update is installed, your iPhone will restart.
In case you want to install the update via iTunes, follow these steps.
  1. Download and install iTunes.
  2. In case you already have iTunes, update it to the latest version. You can do this by going to the menu bar in iTunes and clicking Help > Check for updates on a PC or iTunes > Check for updates from the menu bar on a Mac.
  3. Once you have got the latest version, connect the iOS device to your computer. In iTunes, select your device from the bar on the top-right.
  4. Now click on the Summary tab and click on Check for Update.
  5. To download and install iOS 8, click Download and Update.

apple_itunes_update_edited_1.jpg
Once the install is completed, follow the on-screen instructions to setup your iOS 8 device. You may be promoted to set up your device as new, restore from an iCloud Backup or restore from an iTunes Backup after reboot - select option 2 or 3 based on the backup method you selected above. You may also be prompted to re-enter your Wi-Fi or Apple ID/ iCloud password, or enable location services, while iPhone 5s users may be prompted to enter their fingerprint again - all that is normal.
Setting up iOS 8

Your iOS device will restart when the update is downloaded. After that, follow these steps.
  1. If the update was successful, you'll see a screen with "Update Completed" written in large font. Hit Continue.
  2. Now choose whether you want to enable location services. We suggest you tap Enable Location Services to ensure that anti-theft service Find My iPhone is enabled. You can easily enable this later by going to Settings > Privacy > Location.
  3. If you use iCloud, your iOS device will now ask you to enter your Apple ID password. Key it in and hit the Next button at the top.
  4. Apple's Terms and Conditions screen will now show up. You can read the whole thing if you wish or you could have it mailed to you by tapping Send by Email. To proceed, tap Agree (bottom-right) and again select Agree in the pop-up.
  5. Now Apple will ask if you want to upgrade to iCloud Drive. iCloud Drive lets you store files on the cloud and access them on all of your devices. If you want this, tap Upgrade to iCloud Drive. If not, choose Not Now.
  6. If you use iCloud Keychain, and you want all your passwords on your device again, then the this step is important. You can pick Use iCloud Security Code to have Apple send you an SMS with the code or tap Approve from Other Device to another device (that uses your Apple ID) to restore passwords. To ignore this, tap Don't Restore Passwords.
  7. Finally, Apple will show you the Welcome to iPhone/iPad/iPod touch screen. Tap Get Started to start using your iOS 8 device.



Friday, 18 July 2014

Google Wallet for Android and iOS Adds Gift Cards, Money Requests and More

Google on Thursday has updated its Wallet app for Android and iOS devices with several new features that includes support for gift cards, ability to request from people, and the ability to send money for free via debit card.

With the Google Wallet app, now users can request money from known people. The request will appear as a notification right away, or the user can also use Gmail to make a money request, just like an attachment. As of now, the feature is limited to 18 year and above users in the US only, and Google has not specified if it will release it to other regions. Also users can now send money for free using their debit card in Google Wallet app.









"For all those times when your friends forget to pay you back for dinner, you can simply request money using the Google Wallet app," said company on blog post.

Google Wallet app users can now manage gift cards along with their loyalty cards and other offers. Users can either input the card information, or click a picture of it, and then proceed to show cashiers in stores in the US.

Google says there are certain merchant gift cards (e.g. Best Buy, Nike and more) that will let users check balance in real-time and get reminders to use them when the user is near a store. Also users can a save a gift card received electronically from the e-gift by selected merchants with clicking Save to Google in Google Wallet app. Additionally users will get notified when their online orders have shipped.
The Google Wallet for Android and iOS, now also supports Spanish language by setting device language preferences. Both apps can be downloaded from app stores and are supported in US only.

@source from NDTV