[DOC] [TLE] Greek alphabet - Wikipedia [PAR] The Greek alphabet has been used to write the Greek language since the 8th 
century BC. ... Type. Alphabet. Languages, Greek. Time period. c. 800 BCE  
present .... In both Ancient and Modern Greek, the letters of the Greek alphabet 
have fairly ..... in most other parts of the Greek-speaking world during the 4th 
century BC. [DOC] [TLE] History of the Greek alphabet - Wikipedia [PAR] The history of the Greek alphabet starts with the adoption of Phoenician letter 
forms and .... Plutarch goes further back to describe an older Greek writing 
system, similar as ... it is widely accepted that Ancient Egyptians during the 4th 
century BC were ... The letter qoppa was used in certain Greek dialects (notably 
the western... [DOC] [TLE] The forces on an airplane | Physics | MIT+K12 | MIT+K12 | Khan ... [PAR] Apr 24, 2012 - 9 minLearn about the forces that help (and hinder) airplane flight. ... Airplane wings are  made so ... [DOC] [TLE] The Delta Kite - Some Background. - My Best Kite [PAR] For example, a high-wind Delta kite will have its towing point more towards the ... 
Kite shops sing the praises of Deltas describing them as stable, easy to ... By the 
way, the fourth letter of the Greek alphabet looks like a triangle, and is called 
Delta. .... Often, simple diamond or sled designs are used for fishing, but some of 
the... [DOC] [TLE] Ancient Coin Glossary - Forvm Ancient Coins [PAR] Mar 5, 2011 ... The first letter of the Greek alphabet, also used in ancient times as a ... The 
simpler type, used for transporting goods, was made in the .... The silver content 
ranges from very high, so that the coin looks like ..... is usually shown winged, 
representing great speed as much as flight. ..... Often shown with wings. [DOC] [TLE] Aerodynamics, Aircraft Assembly, and Rigging - Federal Aviation ... [PAR] aircraft are designed with particular types of primary and ... aerodynamics is 
derived from the combination of two Greek .... The terms speed and velocity 
are often used .... one-fourth of the total lift. ... High-lift wings and high-lift devices 
for wings have been ...... Service letters may provide more descriptive procedures 
or. [DOC] [TLE] chapt4 - NASA History Homepage [PAR] Figure 13 showed that by taking a slice out of an airplane wing and viewing it 
from ... A flat plate at an angle of attack, for example, could be used to create the 
lift but ... The angle of attack a [Greek letter alpha] is the angle between the chord 
line. ..... But the longer span wing (higher aspect ratio) has one-fourth the induced
... [DOC] [TLE] Dictionary of Technical Terms for Aerospace Use - A - NASA [PAR] Ablating materials are used on the surfaces of some reentry vehicles to absorb 
heat by .... This type of absorption is often referred to as line absorption. ..... (or 
slightly supersaturation) of air passing over the surfaces of high-speed aircraft. 
..... alphanumeric (alphabet plus numeric): Including letters and digits. alpha 
particle: A... [DOC] [TLE] Grades 6-8 - Above and Beyond [PAR] ABOVE AND BEYOND is a multisensory flight and .... The fourth lesson plan is 
Logical .... The prototype for the SUGAR Volt used in wind tunnel testing was a 15
% scale model. ..... Schairer sent this letter describing swept-back wings from 
Germany. 1. ... Fighter jets and other high-speed aircraft have wings swept back 
an... [DOC] [TLE] The Economist explains | The Economist [PAR] As the country approaches a referendum on December 4th that could lead to the 
fall of ... Italy's other main right-wing party, the Northern League, has so far been 
... a hyperloop that would allow high-speed travel along America's west coast. 
.... known as chlorofluorocarbons (CFCs), which were used in refrigeration and 
as... [DOC] [TLE] Roswell UFO Incident - July 1947 - Connections to July 4th ... [PAR] It is believed the crashed UFO's were used for reverse engineering,

Question: This 4th letter of the Greek alphabet is used to describ a high-speed aircraft wing type
Answer: delta