Theorys In Space Flashcards
Which country was the flat earth theory invented
India
Which country was the world turtle invented
Thialand
Which country was the geometric model invented
Greece
What is a geocentric model
the structure of the solar system (or the universe) in which Earth is assumed to be at the centre of it all
Why did people beive that the geocentric model was a thing
If god created man thenthe earth wold be the center of the universe
What is the Heliocentric theory
That all planets revole arround the sun
Evidance of heliocentric model.
Empirical evidence like observing planets and using telescopes supported the heliocentric model, making it widely accepted.
Why couldnt atoms form right after big band
The intense heat after the Big Bang prevented immediate atom formation, about 380,000 condition were cool enough to form
Evidance about big bang theory
Cosmic Microwave Background, galaxies moving away (redshift), expected and seen light element amounts, and the universe’s structure all suggest a hot beginning and expansion.
Whp was the creator of the helocentric theoryw
Galileo Galilei
What is it called when planets seem to be in reverse
The retrogear motion
Geostationary orbit, where does it pass,how long does it take,does it stay above same point
Equator,24 hours ,yes
Low polar orbit,where does it pass,how long does it take,does it stay above same point
Both poles,90-200mins,no
Low earth orbit,where does it pass,how long does it take,does it stay above same point
Above earth surface,90mins,no
Accuracy
Trying to get as close as possible to the true value
Precision
How consistant your results from doing multiple questions
Repeatable
Same person reapiting method and geting a similar result
Reproducible
If anotherperson reapeats your method can get the same result
Resoloution of a measuring instrument
The smallest reselotion of an instrument
Anomalous result
An answer that dosent fit the pattern
Hazards of space
Space travel hazards include radiation exposure, microgravity effects on the body, psychological challenges, spacecraft malfunctions, and the risk of collisions with debris.
Benefits of space travel
Space travel brings technological innovation, scientific discoveries, economic growth, global collaboration, and inspires human potential.
different techniques
astronomers use to search for possible
habitable planets.
Astronomers use methods like transit, radial velocity, direct imaging, and astrometry to search for habitable planets by detecting star and planetary characteristics.
Describe how astronomers use
telescopes
Telescopes enable astronomers to observe and study distant celestial objects by collecting and magnifying light.
What are 2 telescopes
Two types of telescopes are refracting telescopes, which use lenses to bend and focus light, and reflecting telescopes, employing mirrors to gather and direct light for observation.
Describe how a Convex lens works
A convex lens bends light inwards, focusing it to a point, which magnifies and sharpens images.
Describe how astronomers search
for life on other planets. Include
SETI and Carl Sagan!
Astronomers, inspired by Carl Sagan, search for alien life using methods like SETI, scanning for signals, and exploring planets, such as Mars, for signs of microbial existence.
