Piano Tiles 2 | Trick #2

Piano Tiles 2 | Trick #3

A team of scientists announced on Thursday that they had heard and recorded the sound of two black holes colliding a billion light-years away, a fleeting chirp that fulfilled the last prediction of Einstein’s general theory of relativity.

Einstein on 1915

When Einstein announced his theory in 1915, he rewrote the rules for space and time that had prevailed for more than 200 years, since the time of Newton, stipulating a static and fixed framework for the universe. Instead, Einstein said, matter and energy distort the geometry of the universe in the way a heavy sleeper causes a mattress to sag, producing the effect we call gravity.

A disturbance in the cosmos could cause space-time to stretch, collapse and even jiggle, like a mattress shaking when that sleeper rolls over, producing ripples of gravity: gravitational waves.

Einstein was not quite sure about these waves. In 1916, he told Karl Schwarzschild, the discoverer of black holes, that gravitational waves did not exist, then said they did. In 1936, he and his assistant Nathan Rosen set out to publish a paper debunking the idea before doing the same flip-flop again.

According to the equations physicists have settled on, gravitational waves would compress space in one direction and stretch it in another as they traveled outward.

Hearing a Gravitational Wave 

As Predicted by Einstein’s general theory of relativity 100 years ago, gravitational waves have been directly detected for the first time. LIGO, the Laser Interferometer Gravitational-Wave Observatory, heard black holes colliding.

1. TWO BLACK HOLES
   About 1.2 billion years ago in a distant galaxy, a pair of black holes circled each other. The larger black hole was 36 times the mass of our sun, and the smaller one 29 times.
2. COLLISION
   The intense gravity accelerated the black holes to half the speed of light, pulling them closer and carving distortions in space and time. In a fraction of a second, the pair collided and merged into an irregular shape.
3. RING DOWN
   The unstable blob smoothed into a sphere, a process called ring down. Three solar masses’ worth of energy were vaporized in a storm of gravitational waves, distorting space and time and leaving a new black hole 62 times the mass of the sun.
4. GRAVITATIONAL WAVES
   The invisible waves rippled outward at the speed of light. But waves fade with distance, and when they finally reached Earth, the distortions were too small to be measured above the heat, noise and other vibrations of our planet. 
5. DETECTION
   LIGO is a pair of L-shaped observatories 1,900 miles apart. Ultra-pure mirrors at the ends of each arm are isolated from vibrations. Passing gravitational waves push and pull the arms, changing the length of tunnels by less than the width of a proton. 
6. A CHIRP
   On Sept. 14, LIGO’s detectors measured their first vibrations from a gravitational wave. Translated to sound, it was a short chirp, the billion-year-old echo of the collision of those two black holes.

Summary

Astronomers now know that pairs of black holes do exist in the universe, and they are rushing to explain how they got so big. According to Vicky Kalogera of Northwestern University, there are two contenders right now: Earlier in the universe, stars lacking elements heavier than helium could have grown to galumphing sizes and then collapsed straight into black holes without the fireworks of a supernova explosion, the method by which other stars say goodbye. Or it could be that in the dense gatherings of stars known as globular clusters, black holes sink to the center and merge.

Michael S. Turner, a cosmologist at the University of Chicago, noted that astronomers had once referred to the search for gravitational waves as an experiment, not an observatory. “LIGO has earned its ‘O,’ ” he said. “That is, it will be an observatory, getting tens of events per year.”

Source: LIGO, Caltech, M.I.T., Simulating eXtreme Spacetimes project By Jonathan Corum

First think what can you do with Facebook Messenger?
Think a while and read below:
- Chat with your friends
- Send photos, files and stickers
- Make video calls
- Pay with Messenger(in some Countries only)
- Play Chess Game with your friends


It sounds wired but the fact is true.

Are you Chess player? / Do you love to play chess?

Steps for Playing Chess Inside Messenger:

Step 1: Type "@fbchess play" and hit Enter (during a conversation)

Step 2: For movement use following commands: 

Those who are fan of Swift Keyboard are amazed to hear that microsoft has bought SwiftKey. Microsoft's Windows 10 Mobile efforts are off to a slow, almost non-existent start, so it's instead methodically taking over your current phone with another software acquisition. 

SwiftKey the automatic predictive keyboard developer, is being scooped up by the Redmond company, confirmed its official blog post. 

The deal is worth for $250 million (about £173m, AU$356m).

As we have already told about the New iPhone 5SE, which is releasing on March 2016.It is also announced that ipad 3 air is to be launched along with iPhone 5SE.

This time we could be in for a new iPhone, a new iPad and new Apple Watch bands.

For more visit our earlier post!

New iPhone Is Releasing this March not September 

The Letv Le Max Pro is one of the first smartphones announced with Qualcomm’s new Snapdragon 820 processor. Its really FAST!!



It is officially announced at CES 2016. The speed is far more better than other phones. Its also called the eco-system phone on China. Right now there is no PLAY STORE in the phone but we expect it in further days when is on market.



Features:
1. Quadcore
2. 2.2 Ghz
3. Snapdragon 820
4. 4Gb RAM
5. 21 MP Camera
6.  6.3 inch Display
7. FIngerPrint Scanner
8. USB Type C

Stay tuned for more updates..... :)
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HOW TO CREATE WIFI HOTSPOT IN UBUNTU??

1. Firstly disable WIFI and plug in an internet cable to your laptop (Brodband or cable from router).

2. Then, go to Network Icon on top panel > Edit Connections...... then click the Add button.



3. Then choose Wi-Fi from the drop-down menu - Choose a connection type- as shown in picture below:


4. After clicking create buton do:
    - Type in a connection name, SSID - (keep name as your wish, eg- wifi-hotspot)
    - Select mode: Infrastructure
    - Device MAC address: select your wireless card(MAC address) from drop-down menu.


5. Go to Wi-Fi Security tab, select security type WPA & WPA2 Personal(which is more secure than other security type) and set a password.

6. Then go to IPv4 Settings tab
    - from Method drop-down box select 'Shared to other computers'.
    - When done, click the save button.
    - After above steps, a configuration file created under /etc/NetworkManager/system-connections           directory. File name is same to the connection name you typed in step 4.


7. Now press Ctrl+Alt+T on keyboard to open terminal. When it opens, paste the commands below and hit enter to edit the configuration file: 

gksu gedit /etc/NetworkManager/system-connections/wifi-hotspot




8. Replace wifi-hotspt with the connection name you typed in step 4. When the file opens, find out the line mode=infrastructure and change it to mode=ap.

Finally save the file.



NOTE:
When everything’s done, enable WIFI from Network Manager icon on the panel.
It should automatically connect to the hotspot you created. If not, select “Connect to Hidden Wi-Fi Network …” and select it from the drop-down box.

If you cant configure, have a look at the video below to configure: