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Earth
New post in Earth
What is the scientific explanation for radio waves bending around the Earth?
August 1st, 2022
atmospheric-science
earth
electromagnetic-radiation
radio-frequency
Why is air not sucked off the Earth?
January 30th, 2020
newtonian-gravity
thermodynamics
estimation
atmospheric-science
earth
Why does the Earth cool at night time?
June 10th, 2020
atmospheric-science
thermal-radiation
earth
thermodynamics
geophysics
If the moon had a mirror surface, would the earth be equally illuminated as by the sun during full moon, or would it require a different mirror shape?
April 1st, 2020
moon
sun
earth
reflection
visible-light
Why can't we feel the Earth turning?
June 25th, 2020
newtonian-gravity
reference-frames
earth
coriolis-effect
centrifugal-force
How does gravity work underground?
July 7th, 2020
earth
newtonian-gravity
planets
faq
How can a full moon be seen south of an observer's location?
February 18th, 2020
astronomy
earth
geometry
sun
moon
Why is a new moon not the same as a solar eclipse?
May 18th, 2021
astronomy
sun
moon
earth
eclipse
How do I explain to a six year old why people on the other side of the Earth don't fall off?
February 17th, 2020
gravity
education
earth
Why the electric potential of Earth is zero?
October 31st, 2020
electrostatics
potential
voltage
earth
conventions
If the gravity at the center of the Earth is zero, why are heavy elements like iron there?
February 12th, 2021
newtonian-gravity
earth
planets
geophysics
Simple check for the global shape of the Earth
August 1st, 2022
curvature
earth
education
How can a day be exactly 24 hours long?
April 4th, 2020
time
astronomy
earth
solar-system
metrology
If a jet engine is bolted to the equator, does the Earth speed up?
January 21st, 2021
newtonian-mechanics
earth
How fast a (relatively) small black hole will consume the Earth?
July 16th, 2020
estimation
earth
black-holes
astrophysics
Is it possible to send all nuclear waste on Earth to the Sun?
August 1st, 2022
earth
sun
nuclear-engineering
space-mission
solar-wind
Why wouldn't the part of the Earth facing the Sun a half year before be facing away from it now at noon?
December 23rd, 2020
astrophysics
everyday-life
earth
rotation
sun
How can the Earth keep spinning with a liquid core?
July 29th, 2020
earth
friction
rotational-dynamics
angular-momentum
newtonian-mechanics
How long would a lever have to be to move the planet Earth?
January 4th, 2020
earth
newtonian-mechanics
How much of Earth's mass is created by the energy of the core?
July 22nd, 2021
energy
mass
mass-energy
earth
geophysics
Why is the South Pole Telescope located exactly at the South Pole?
August 1st, 2022
optics
astronomy
earth
telescopes
Why isn’t the center of the Earth cold?
August 1st, 2022
earth
geophysics
How fast is the Earth-Sun distance changing
August 1st, 2022
solar-system
astronomy
sun
earth
Was the 2013 meteor over Russia stronger than an atomic bomb?
February 18th, 2020
meteors
earth
energy
Why can't the Earth's core melt the whole planet?
March 10th, 2021
thermodynamics
earth
geophysics
estimation
temperature
How fast is Earth moving through the universe?
June 12th, 2020
milky-way
relative-motion
speed
earth
astronomy
I was told that if the Moon had a retrograde orbit, tides would have a faster rhythm. Why is that?
August 1st, 2022
earth
moon
tidal-effect
Is the total energy of earth changing with time?
August 1st, 2022
geophysics
earth
energy
thermodynamics
Can helium disappear from Earth?
August 1st, 2022
atmospheric-science
earth
newtonian-gravity
Does the Moon's core still contain significant heat?
August 2nd, 2020
heat
astronomy
moon
earth
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