Social and cultural lag. All people are always immersed in a culture which is responsible for the levels of education. Today unfortunately most education is designed as propaganda rather than information related to the physical laws that govern all living and non-living systems.

13045472
Today
Yesterday
This Week
Last week
This Month
Last month
All days
4001
9413
43351
6434880
154166
202396
13045472

Server Time: 2017-09-21 23:17:05