Tuesday 5 August 2014

The new data transfer world record to download 64,413 CD’s per second

             Wikimedia Commons by Jacarranza

A new record in data transfer has been set up by the researchers of Technical University of Denmark.  They successfully transferred the data of 43 terabytes per second through a single optical fiber.

It is equivalent to the data contained in 64,413 CD’s of 700 MB capacity each. 

A new kind of optical fiber to transfer 43 TB data through a single laser was used in a transmitter. The previous record of 32 TB was held by the Karlsruhe Institute of Technology.

This worldwide competition for data transfer speed helps in the development of internet data transfer technology which is increasing at the rate of about 40% per year.

Another thing is that the carbon released through energy consumption by internet is about 2% of that of entire mankind. In this manner the internet is equivalent to the transport industry including aircraft and shipping. However other industries are not growing at the rate of 40%.  

So it becomes necessary to increase the bandwidth of the internet, in order to decrease the energy consumption.

Earlier the researchers have succeeded in combined data transfer at the rate of 1 petabyte or 1000 terabyte, but it was done with the help of hundreds of lasers.

The present success was achieved through a new optical fiber brought from NNT, a telecom company of Japan.
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How to recall the sent mail in Gmail

Wikimedia Commons by Sasa Stefanovic
Sometimes it is realized after pressing the send button in Gmail that the mail should be recalled. It may be required due to spelling mistakes or pressing the send all button or any other reason to avoid embarrassment.

But there is an option in G mail account by which the sent mail could be recalled or unsent. Follow the following steps to activate the option in the G mail account.

1. Click on the gear or wheel icon  on G mail account page.

2. Click on setting in drop down menu.

3. Click on Labs.

4. Click on enable button in front of undo send.

5. Save the changes.

6. Then go back to the setting again.

7. Find undo send on General tab.

8. Select cancellation period up to 30 seconds.

9. Save the changes.

From now on the yellow dialogue indicating “Your message has been sent” will indicate Undo option.

Click on undo option to reopen the mail in unsent form in compose mail mode.
It could be edited or saved in draft or deleted.
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Global Warming and Malaria

Wikimedia Commons by Mike Edwards
The global warming causes the deadly diseases like malaria, dengue and cholera. The malaria causes the death of 64475 in the word when the temperature of earth rises just one degree Celsius.

The report in the conference on climate change at UN came to the conclusion that the activities of man directly or indirectly cause climate changes and some of the diseases are the outcome of this change.  

Malaria spreads faster due to increase in temperature and causes a global loss of more than 3 billion dollars. Malaria is spreading very fast in the developing countries. More than 109 countries are presently under the effect of malaria, out of which most of the nations are in Africa, Asia and South America.

In developing countries, the malnutrition is the principal cause of the spread of malaria.

According to the report of Lancet & University College London, the principal cause of global warming is fossil fuel. It is rapidly increasing the temperature of the earth due to release of greenhouse gases like carbon dioxide and carbon monoxide. These gases pollute the atmosphere and change the climate. 
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