Traveling Back to the Moon and Beyond With NASA’s Digital Learning Network (DLN)
Dec 30, 2015
Terms to Know
• What are ratios/proportions?the relationship/comparison in quantity, amount, or size between two or more things
• Example If you have a classroom with 4 girls and 2 boys:
The ratio of girls to boys is: 4/2.
The ratio of boys to girls is 2/4.
NASA’s Exploration Launch ArchitectureNASA’s Exploration Launch Architecture
364ft
184 ft
321 ft305 ft
358 ft
RatiosProportions
Saturn V/SoL 364:305 364/305
Shuttle/SoL 184:305 184/305
Ares I/SoL 321:305 321/305
Ares V/SoL 358:305 358/305
Scale Factor
• The number that is multiplied to make objects the same size.
364 x
305 100
305x = 36400
305 305
x = 119.34
Terms to Know
• What is Diameter? The distance across a center point of a circle
• What is radius? Half of a surface starting at the center point of a circle (1/2 diameter)
• Formula to find the area of a circle? 2r
Diameter
Radius
Comparison of Crew and Command ModulesComparison of Crew and Command Modules
16.404 feet 12.795 feet
Orion Crew Module(NASA Concept)
Apollo Command Module
Area of Crew Modules
• r r = radius
Area of Orion Crew Module
(8) = 64 = 201 ft
Area of Apollo Command Module
(7.5) = 56.25 = 177 ft
2
2
2 2
2 16.404 feet
12.795 feet
Comparison of Lunar LandersComparison of Lunar Landers
Lunar Surface Access Module(NASA Concept)
Lunar Excursion Module(Apollo)
32.152 feet 20.013
feet
Compare the (Apollo) Lunar Excursion Module to the (Ares) Lunar Surface Module
• Ratio Proportion• 20:32 20
32
Scale Factor 20 x
32 100
32x = 2000 x= 62.5 or 63
32 32
32.152 feet
20.013 feet
Mars
• Mars is smaller and colder than Earth• It has a thin atmosphere and polar ice caps, and
dry riverbeds crisscross its surface.• There are no signs of great civilizations past or
present on its red surface.• In August 1996, though, scientists announced the
discovery of possible microscopic fossils in a meteorite from Mars.
• Trace elements prove that it came from Mars
• For more info view the Mars DLN show