List of questions flerfs cannot answer: Difference between revisions
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===Stars=== | ===Stars=== | ||
* What are stars? | * What are stars? | ||
** What are stars made of? | |||
** How big are stars? | |||
** How come stars form a {{wp|Hertzsprung–Russell diagram}}? | |||
*** How come the Sun perfectly fits within the {{wp|main sequence}}? | |||
* How far away are stars? | * How far away are stars? | ||
* What causes {{wp|stellar parallax}}? | * What causes {{wp|stellar parallax}}? | ||
* What causes {{wp|stellar aberration}}? | * What causes {{wp|stellar aberration}}? | ||
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** Why do cyclones never cross the equator?{{efn|If a flerf says "because of the Sun's path" in response to this and the previous question, ask why the cyclone boundary doesn't move between the topics like the Sun does.}} | ** Why do cyclones never cross the equator?{{efn|If a flerf says "because of the Sun's path" in response to this and the previous question, ask why the cyclone boundary doesn't move between the topics like the Sun does.}} | ||
* What causes the atmospheres pressure gradient? | * What causes the atmospheres pressure gradient? | ||
** Why can the gravitational field strength (9.8 m/s< | ** Why can the gravitational field strength (9.8 m/s<sup>2</sup>) be derived from the measured pressure gradient? | ||
** Why doesn't the air at sea level equalise in pressure with the air higher up? | ** Why doesn't the air at sea level equalise in pressure with the air higher up? | ||
Latest revision as of 21:03, 5 October 2026
This is a list of questions that flerfs refuse to answer, don't know the answer to, or don't give consistent answers for.
Astronomy
Basic geometry
- Why is there a south celestial pole?
- Why are there circumpolar stars in the Southern hemisphere?
- Where is the south celestial pole located 'on' the firmament?
- Why is the orientation of southern constellations like Crux
dependent on longitude? - If the Gleason map is true, how are the same stars visible in completely different directions?
- Why is Polaris not visible in the Southern Hemisphere?
- Why is Sigma Octantis not visible in the Northern Hemisphere?
Eclipses
Lunar eclipse
- What is a lunar eclipse?
- Why is the shadow on the Moon always a circular arc?
Solar eclipse
- How do we predict the path of totality?
Sun
- Why does everyone see the same sunspots?
- Why does the Sun not change in angular size?
- Why does the Sun set?
- How do we predict what time the Sun will set?
- How do we predict what time the Sun will rise?
- Why does the sun set right-to-left in the Southern Hemisphere, and left-to-right in the Northern Hemisphere?
- Why is there a 24 hour sun in Antarctica?
- How can the Sun be seen due south at local midnight?
Moon
- What causes Moon phases?
- What are lunar craters?
- What is the Moon made of?
- What causes libration?
- Why is the Moon's angular size consistent with an elliptical orbit?
- Why does everyone see the same side of the Moon?
Stars
- What are stars?
- What are stars made of?
- How big are stars?
- How come stars form a Hertzsprung–Russell diagram?
- How come the Sun perfectly fits within the main sequence?
- How come the Sun perfectly fits within the main sequence
- How far away are stars?
- What causes stellar parallax?
- What causes stellar aberration?
Retrograde motion
- What causes retrograde motion?
- Why does the heliocentroc model perfectly predict retrograde motion?
Planets
- How did Ole Romer successfully measure the speed of light by timing occultations of Io throughout the year?
- Why is there a complete lack of perspective effects due to the planets being 'local'?
- Why does everyone see Saturn's rings at the same angle?
- Why does everyone see Jupiter's Great Red Spot in the same position?
- Why does everyone see Jupiter and Saturn's moons in the same positions?
- Why does everyone see Mercury and Venus' phases at the same angle?
Inferior planets
- Why do Mercury and Venus show phases?
- How does the heliocentric model perfectly predict the phases of Mercury and Venus if its 'incorrect'?
Firmament
- How high is the firmament?
- What is the firmament made of?
- What is beyond the firmament?
Astronomy equipment
Equatorial mounts
- How do equatorial mounts work?
- How do you polar align an equatorial mount in the Southern Hemisphere?
- How do equatorial mounts prevent field rotation?
Planisphere
- Why is there no working planisphere of the entire sky?
- Why do planispheres show stars below the ground?
Software
- How do GoTo telescope mounts know where to point?
Stellarium
- How does Stellarium make accurate predictions, considering it uses an 'incorrect' model of the solar system?
Atmosphere and weather
- What causes seasons?
- What causes the Coriolis effect for storms?
- Why do cyclones spin clockwise in the Southern Hemisphere, and counterclockwise in the Northern hemisphere?
- Why do cyclones never cross the equator?[note 1]
- What causes the atmospheres pressure gradient?
- Why can the gravitational field strength (9.8 m/s2) be derived from the measured pressure gradient?
- Why doesn't the air at sea level equalise in pressure with the air higher up?
Geodesy and cartography
- What is the map of flat Earth?
- Does this map have an accurate scale?
- Where are the north and south poles?
- Is this map compatible with observations of the celestial sphere?
Horizon
- Why is there a sharply defined horizon?
- How can the horizon obstruct distant objects?
Navigation
Celestial navigation
Aviation
- Why is the globe the only model of Earth that can consistently and accurately predict flight times?
Southern Hemisphere flights
- How is a direct flight from Sydney to Santiago possible?
- How should we plan this flight using flat Earth?
- What is the flat Earth prediction for this flight's flight time?
Notes
- ↑ If a flerf says "because of the Sun's path" in response to this and the previous question, ask why the cyclone boundary doesn't move between the topics like the Sun does.