10 Hidden Features WhatsApp Mandatory Diketahuil

Who would have thought, an instant messaging application WhatsApp turned out to have a number of features that are hidden. Although the so-called hidden, in fact this feature can be accessible to anyone if you know how.

Users can use it to facilitate a variety of things, such as maintaining the privacy, reduce data consumption, up to save conversations into text form.

Here are ten of several hidden features in WhatsApp, which are summarized KompasTekno from various sources.

1. Hiding "Last Seen"

WhatsApp allow users to see each other online last time respectively. But if this is considered intrusive, you can hide the sign "last seen" it.

How, select the Settings menu, then select Accounts and the Privacy tab. You will find a bar that read "Last Seen". Choose the tab, it will display the other options in the pop-up.

Struve Geodetic arc Generate Most Accurate Measurements of Earth

Determining the size of the Earth is one of the most difficult problems for natural philosophers since ancient times. In the 2nd century BC, the Greek astronomer and mathematician named Eratosthenes began developing methods of measurement to calculate the meridian arc and compares it with the angle of the Earth's center.

This method last up to two thousand years even though the accuracy of measurement is very low, ie approximately one percent. Eratosthenes calculates the arc length by measuring the time it takes for people to cross the desert and the angle by measuring the difference between the altitude of the sun between latitudes.

In the 16th century, discovered a new measurement technique called triangulation. This method uses the arcs within the short to measure accurately, while the distance can be determined using a triangular link chain.

Triangulation allows astronomers and cartographers to accurately measure the distance that stretch hundreds and thousands of kilometers. During the 18th century, many bows are built across Europe, but the longest is the or Struve Geodetic Arc.

Introduced GrabChat, Contacts Motorists can pass "Chatting

Communication with the driver of the vehicle which was booked through the Grab application will be done via an intermediary chat, in addition to landlines.

Motorcycle taxi service providers and the rental car online today, Monday (24/10/2016), announced the availability GrabChat, instant messaging features that are available in the mobile application Grab.

According to a written statement received KompasTekno Monday GrabChat icon will appear in the Grab application, in addition to the identity of the driver, after the booking.

Once clicked, the application will show the option to choose a template message. Users can also send their own message. Afterward service users can press the "send" button to begin chatting with the driver of the vehicle is ordered.

"This will simplify and speed up the pick-up process for passengers and drivers with their seamless communication directly from the Grab application, without the need to spend a pulse," said Co-Founder Grab Hooi Ling Tian.