Why will add one second to the hours in 2015, and why the Internet can crumble in the world?

The second is possibly a short usually don't care, but obviously it's important if it's technology companies and banks upon all services that depend on the Internet, which can cause a second delay problems and stopped working. 30 June this year will be some large companies before the real challenge according to the international Observatory of Paris aanlh as a result of the delay time of one second. why? And why? And how serious is it online?

As I said in the introduction, a French Observatory dedicated to the study of planet Earth at the time the second one next summer this year, as on 30 June 2015 must indicate the hours to 11: 59: 60 instead of 11: 59: 59, and this in order to balance the speed of rotation of the Earth about the same 24 hours, between the time.

The planet was found to be suffering from a slowdown in the speed of rotation about the same amount two milliseconds per day. the hours worked on a scheduled basis, and do not follow strictly those differences. It must therefore be adjusted to suit the speed of rotation of the earth around itself.

But, why is the worldwide technology companies are worried about increased again in just one day of the year?

Of course, as we know, the services provided by time-dependent businesses primarily in the work of implementing financial transactions. updates. Etc. these services operate to the detriment of network time Protocol (NTP), which distributes UTC by synchronization of hours computers linked together in a network all over the world.

For example specifically financial transactions can be lost if you do not add a second systems. This shows clearly how interconnected our world is very fragile and how it can be affected by our once again.

In 2012, it is worth mentioning, that companies like Mozilla, and Foursquare, Yelp and LinkedIn, Reddit and StumbleUpon, and Linux systems as well as some programs that rely on Java, suffered the problem at that time. Expected to be repeated the scenario in this year if not programming computers to deal with the change of time.

It is not the first time that this happens. Between 1972 and 1979 were added at least one second every year. but since 1999, a calibrated atomic clock four times.