Latest Featured Knols


The Sky Before the Telescope
by Petr Frish
The era of naked-eye astronomy, from the beginning of the human race until the year 1600 A.D., provided mankind with early theories and mythologies of the universe, as well as ways of measuring time. In the final phase of this pre-telescope era, detailed observations of the heavens paved the way for the scientific revolution, during which Earth lost its privileged position as the center of the universe, and became just one of the planets in a vastly expanded space.

Past Featured Knols

Arctic Exploratio Miscarriag The Sky Before The Telescope
Computer Buses Contra Dance

<< 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 >> Last

Past Frontpage Knols

Identity Theft Is Not Just For Americans Audio Compression Explained Salt Water Hook Setting Basics
Ice Fishing A New Lake Grassroots Organizing Second Law Of Thermodynamics
Web 2.0 - Back To The Future! Trophy Flathead Fishing You May Want A Second Opinion Before Using This Bug Doctor
Attitudes And Attitude Change Shakin' Up Bass Tactics For Fall Turkeys
Live Roulette Rachel Marsden John McCain
Tackling With Top Water Musky Using Minerals For Deer Hunting Oslo
Illinois Prairie Path - Trail Of The Month: August 2008 Falls Fly Fishing Frenzy

<< 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 >> Last