The wearable devices in ancient times

Health bracelet， smart watches， digital glasses， these wearable digital devices may come into our lives in quantity， and upgrade our dashing level immediately. However， the collocation of costume and tools are not the invention of modern people， our ancestors had began to use wearable devices long time ago.

This mini ring of abaci is an invention of ancient people， its practical and fashionable， both a tool and a decoration. This object was born in the Qing dynasty of the 17th century. It is 1.2 centimeters in length and 0.7 centimeters in width. Although its figure is small， the silver beads and sticks with fine workmanship allows the abaci ring working well and having the same calculation function as a big abaci.

Number

Recently， a team of French scientists firstly found a kind of giant virus 30000 years ago in Siberia of Russia， and woke up the virus activity successfully. As the virus looks exactly like the stean of ancient Greek， the scientists called this virus “Pithovirus sibericum”. The virus is the third giant virus has been found. Its 1.5 microns in length and 0.5 microns in width， which could be directly observed by optical microscope. The team member who found and researched this virus says that the new virus has very simple genome but complex self replication mode， and it still has infectivity today. He also reminds that though this virus wont threat human security for the moment， the ice sheet melting caused by global warming may recover the activity of the virus under frozen earth， and pose a risk to human health.

Voice

Mars is the most suitable star in the solar system for human to live except for the earth， I hope that human could immigrant to Mars in this century.

——Stephen·Hawking

Japans proposition of whale hunting cannot be accepted， we must reflect on this.

——Shinzo Abe