What's New

support iOS8.0

App Description

The why "is China's first this popular edition of the encyclopedia, physics, chemistry, astronomy points weather, agriculture, physiological health 5 roll, issue five hundred) that is more than copies. China's young children's film version clubs in January 1961 film version. It is not a book, but as a "set" a version of the works. Its content is very wide, to ask a friend introduced all kinds of ways of scientific knowledge and the text is not long, a shallow development, very He operators in the young readers cognitive style and reading characteristics. It spread knowledge, science popularization in play a positive role, influence generations on the road of science teenagers. In recent years, dubbed the "why" books layer play in endlessly, put a lot of the attention of the frontier problem also into come in, greatly enrich the connotation of the brand.
Books directory:

Why the animal world

Why the information and technology

Why the mystery of the human body

Why sports and country

Why of the plant kingdom

Why the vast universe

Why cultural art

Why of nutrition and health

Why the mystery science

Why the military and the traffic

Why of our earth

Why the Chinese and foreign history

The function of software:
1, iOS5 support.
2, each page preview picture, click on the picture directly into to want to see the page
3. The same page shows the page
4, zoom-in (thumb and index finger operation)
5, support print directly
6, support increased save, fast browsing bookmarks
7, support to send mail books figure and text information

iPhone Screenshots

(click to enlarge)

One hundred thousand whys screenshot 1 One hundred thousand whys screenshot 2 One hundred thousand whys screenshot 3 One hundred thousand whys screenshot 4

iPad Screenshots

(click to enlarge)

One hundred thousand whys screenshot 5 One hundred thousand whys screenshot 6 One hundred thousand whys screenshot 7 One hundred thousand whys screenshot 8 One hundred thousand whys screenshot 9

App Changes

  • June 17, 2014 Initial release
  • August 02, 2014 New version 9.3
  • August 02, 2014 Price increase: FREE! -> $4.99
  • August 05, 2014 New version 9.4
  • August 12, 2014 Price decrease: $4.99 -> FREE!
  • September 02, 2014 Price increase: FREE! -> $5.99
  • September 11, 2014 Price decrease: $5.99 -> FREE!
  • September 17, 2014 Price increase: FREE! -> $5.99
  • September 19, 2014 Price decrease: $5.99 -> FREE!
  • September 23, 2014 Price increase: FREE! -> $5.99
  • September 26, 2014 Price decrease: $5.99 -> FREE!
  • October 01, 2014 Price increase: FREE! -> $5.99
  • October 03, 2014 Price decrease: $5.99 -> FREE!
  • October 22, 2014 New version 11.1
  • October 24, 2014 Price increase: FREE! -> $4.99
  • October 27, 2014 Price decrease: $4.99 -> FREE!
  • November 08, 2014 Price increase: FREE! -> $4.99
  • November 10, 2014 Price decrease: $4.99 -> FREE!
  • November 15, 2014 Price increase: FREE! -> $4.99
  • November 17, 2014 Price decrease: $4.99 -> FREE!
  • November 21, 2014 Price increase: FREE! -> $4.99
  • November 24, 2014 Price decrease: $4.99 -> FREE!
  • December 05, 2014 Price increase: FREE! -> $4.99
  • December 08, 2014 Price decrease: $4.99 -> FREE!
  • December 13, 2014 Price increase: FREE! -> $4.99
  • December 16, 2014 Price decrease: $4.99 -> FREE!
  • December 31, 2014 Price increase: FREE! -> $4.99
  • January 02, 2015 Price decrease: $4.99 -> FREE!
  • January 05, 2015 Price increase: FREE! -> $4.99
  • January 29, 2015 Price decrease: $4.99 -> FREE!
  • February 11, 2015 Price increase: FREE! -> $4.99
  • February 12, 2015 Price decrease: $4.99 -> FREE!
  • February 17, 2015 Price increase: FREE! -> $4.99
  • February 19, 2015 Price decrease: $4.99 -> FREE!
  • February 23, 2015 Price increase: FREE! -> $4.99
  • February 26, 2015 Price decrease: $4.99 -> FREE!
  • March 04, 2015 Price increase: FREE! -> $4.99
  • March 05, 2015 Price decrease: $4.99 -> FREE!
  • March 09, 2015 Price increase: FREE! -> $4.99
  • March 12, 2015 Price decrease: $4.99 -> FREE!
  • March 17, 2015 Price increase: FREE! -> $4.99
  • March 20, 2015 Price decrease: $4.99 -> FREE!
  • March 23, 2015 Price increase: FREE! -> $4.99
  • March 24, 2015 Price decrease: $4.99 -> FREE!
  • April 27, 2015 Price increase: FREE! -> $4.99
  • April 30, 2015 Price decrease: $4.99 -> FREE!
  • May 04, 2015 Price increase: FREE! -> $4.99
  • May 07, 2015 Price decrease: $4.99 -> FREE!
  • May 11, 2015 Price increase: FREE! -> $4.99
  • May 14, 2015 Price decrease: $4.99 -> FREE!
  • May 19, 2015 Price increase: FREE! -> $4.99
  • May 23, 2015 Price decrease: $4.99 -> FREE!
  • May 27, 2015 Price increase: FREE! -> $4.99
  • May 28, 2015 Price decrease: $4.99 -> FREE!
  • June 03, 2015 Price increase: FREE! -> $4.99
  • June 06, 2015 Price decrease: $4.99 -> FREE!
  • June 10, 2015 Price increase: FREE! -> $4.99
  • June 13, 2015 Price decrease: $4.99 -> FREE!
  • June 16, 2015 Price increase: FREE! -> $4.99
  • June 22, 2015 Price decrease: $4.99 -> FREE!
  • June 25, 2015 Price increase: FREE! -> $4.99
  • June 26, 2015 Price decrease: $4.99 -> FREE!
  • July 03, 2015 Price increase: FREE! -> $4.99
  • July 05, 2015 Price decrease: $4.99 -> FREE!
  • July 09, 2015 Price increase: FREE! -> $4.99
  • July 11, 2015 Price decrease: $4.99 -> FREE!
  • July 17, 2015 Price increase: FREE! -> $4.99
  • July 19, 2015 Price decrease: $4.99 -> FREE!
  • August 04, 2015 Price increase: FREE! -> $4.99
  • August 10, 2015 Price decrease: $4.99 -> FREE!
  • August 15, 2015 Price increase: FREE! -> $4.99
  • August 20, 2015 Price decrease: $4.99 -> FREE!
  • August 26, 2015 Price increase: FREE! -> $4.99
  • August 28, 2015 Price decrease: $4.99 -> FREE!
  • August 31, 2015 Price increase: FREE! -> $4.99