|
|
 |
Listing "Earth Articles" from 61 to70 |
Telegraph First telegraph message was transmitted by Morse from Washington to Baltimore in 1844 and read "What hath God wrought?"... by Manpreet Read On...
|
Tank Tanks were a decisive weapon in the two world wars of this century. Preceded by an artillery barrage... by Manpreet Read On...
|
Propeller The basic idea of the propeller is the same as that of the turbine... by Manpreet Read On...
|
Machine Gun In 1865 the French officer Reffye invented a machine gun with a total of 25 fixed barrels, which fired 125 to 150 missiles a minute... by Manpreet Read On...
|
Petroleum We have no idea how long ago men first found petroleum or mineral oil... by Manpreet Read On...
|
Jet Engine The jet engine works by ejecting a stream of gas at high velocity and high pressure, to produce a thrust... by Manpreet Read On...
|
Plastic There can be no doubt that this is an age of plastics... by Manpreet Read On...
|
|
 |
 • Thanksgiving Day Coloringbook • Thanksgiving Day Festival • Thanksgiving Day Greetings • Short Poems for children • Thanksgiving Sayings • When is Thanksgiving Day • Activities, History, Quiz • First Thanksgiving • Thanksgiving Feast, Art & Craft Ideas, Gift Ideas • Blessings • Calendar, Continental Congress National Thanksgiving Proclamations, Thanksgiving Turkey Presidential Pardon • 1777 Thanksgiving Proclamation, 1778 Thanksgiving Proclamation, Prayers, Catholic Thanksgiving Prayer, Family Thanksgiving Prayer
|
|