Search Login Signup

Learning Tools

Documents


1704 Penal Codes

View Document >>   |   Read the Story >>

Account of Businesses Destroyed

View Document >>   |   Read the Story >>

April 6, 1917 - Declaration of War, WWI
This document depicts, in part, President Woodrow Wilson's Declaration of War against Germany, launching America's involvement in World War One.  The proclamation was issued on the 6th of April, 1917. Click on the image for a clearer view.  
View Document >>   |   Read the Story >>

Bell's Letter to his Wife, Page 2

View Document >>   |   Read the Story >>

Dr. Greist in Alaska

View Document >>   |   Read the Story >>

Dr. Richard Feynman Report - "Nature Cannot be Fooled"
Rogers Commission Report - Investigation of the Challenger Explosion.Appendix  F - Personal observations on the reliability of the Shuttle    by R. P. Feynman Introduction   It appears that there are enormous differences of opinion as to theprobability of a failure with...
View Document >>   |   Read the Story >>

Electrically Charged Plasma - Product of Re-Entry
During re-entry, astronauts see a "light show" outside the shuttle's port holes.  What causes that? "As a spacecraft re-enters the earth's atmosphere, it is traveling very much faster than the speed of sound. The aircraft is said to be hypersonic. "Typical low earth orbit re-entry speeds are ...
View Document >>   |   Read the Story >>

Endeavour, STS-127 - Areas of Possible Foam Loss
This NASA drawing depicts areas where foam insulation (on the external fuel tank) broke loose during Endeavour's July 15, 2009 ascent.  The shuttle had just commenced its mission (known as STS-127) when the events occurred.
View Document >>   |   Read the Story >>

Endeavour, STS-127 - Foam Loss from Intertank
This NASA photo provides a close-up view of Endeavour's external fuel tank and depicts the areas where insulation broke loose soon after the shuttle's July 15, 2009 launch.  Endeavour was just  beginning mission STS-127 when this happened.
View Document >>   |   Read the Story >>

Eyewitness Accounts

View Document >>   |   Read the Story >>


All Learning Tools
Documents by Channel