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Questions tagged [gravity]

Gravity is the force that attracts a body toward the center of the Earth, or toward any other physical body having mass.

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Autistic Child creates anti-gravity device

What is the name/author/publication of a science fiction, very short story, about an autistic child who is observed to create an anti-gravity machine from junk in his back yard, then dismantles it.
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Story with extraterrestrials, dinosaurs and low gravity Earth

I am looking for a book title and author of a story set in the Jurassic or similar period, with dinosaurs, but also some kind of aliens that resemble ghost. In the story it seems that in the Earth in ...
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Independence Day - Why is there gravity in space?

In the 1996 Independence Day movie when we see Jeff Goldblum's and Will Smith's charcters flying into space in order to transmit a virus, there doesn't seem to be anything floating around as you would ...
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In The Expanse, how does rotating Eros create gravity?

On various occasions in The Expanse TV series, it's mentioned that the asteroid Eros has artificial gravity. As explained in-universe, the gravity comes from rotation. This is especially mentioned on ...
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Are there planets with a greater gravitational pull in the Star Wars universe?

In all the movies, humans can walk normally on all planets and moons they visit, as if the gravity was similar everywhere. Is this really so? Are any planets with greater gravity represented? Which ...
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Did The Expanse break its own rules?

The Expanse is well known for using hard science, and sticking closely to reality when it comes to things like gravity. But, in Season 2, Episode 6, Paradigm Shift: When they perform that action, ...
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Why Don't People Float while on Starships In Star Wars? [duplicate]

In every scene from Star Wars, where people are in a space shuttle, flying through space, they appear to be under the force of gravity, as if they are on a planet like earth... If they were truly in ...
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Is there any explanation as to why small scale vehicles—such as X-Wings and T.I.E. fighters—in “Star Wars” have gravity?

I realize there are questions focusing on how gravity works on the Death Star as well as moderate sized spacecraft like the Millennium Falcon—where you can stand up and walk around them—in the Star ...
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How is Qresh capable of supporting human life?

Season one of the series Killjoys takes place primarily in 'the quad' two known moons (Westerly and Leith) both of which have human populations and a third moon thought to be barren and lifeless (...
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How do all the planets in the Star Wars universe contain breathable atmosphere and Earth gravity?

All sorts of different species inhabit the Star Wars universe. How is it that their biological function is compatible with the same atmospheric gases, and that the gravity is the same on all the ...
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How fast did Babylon 5 spin or what was the highest gravity level on board?

Babylon 5 had a diameter of 840 meters. If the gravity was 1g, it would have to spin approximately 1.5 times per minute. How fast did it spin or what was the actual "gravity" on board? Are there any ...
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2001: A Space Odyssey book physics

There's a passage in 2001 that struck me as wrong. They're describing the spinning of the carrousel in Discovery and there's the following quote. The problem of shaving was also solved; there would ...
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Do any movies/shows attempt to portray non-Earth, but non-micro gravity?

We've all seen movies and TV shows that portray zero-gravity situations, floating on space stations, etc. And we've all seen movies and TV shows where alien planets are conveniently Earth-like, and ...
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what book is similar to john carter, but hero possessed a green alien's body on low gravity planet

please help me find the name of this book. I read a book when I was young, the human hero's consciousness gets transported to the mind of an alien being on a distant low-G planet. The alien being is ...
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Why didn't the lake float during the Anomaly Scene?

In the Gravity Falls episode "Not What He Seems", we see a series of gravity anomalies in and around a lake. Since it has the same density as the other objects, why didn't the water float away?
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Niven's “Neutron Star:” plausibility of premise?

It's been a long time since I read the Larry Niven story "Neutron Star," so I'm relying mainly on the Wikipedia article (linked). The body of my question is hidden behind spoiler tags because there's ...
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Interstellar: non-breaking waves on Miller

When watching the part where they go down to Miller, I was bothered by the fact that the waves didn't break despite the fact that the water level is ostensibly only knee-deep (roughly, a wave starts ...
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Could the disappearance of Gallifrey cause a gravitational anomaly in Kasterborous?

In The Day of the Doctor Gallifrey was frozen in a single moment, practically disappearing from its place for the rest of time. Were the other planets in Kasterborous realigned / rearranged due to the ...
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Why is the helicopter in Rama (Arthur C. Clarke) subject to gravity?

In "Rendez-vous with Rama" by Arthur C. Clarke, an artificial gravity force is maintained in the O'Neil cylinder (thanks to its spin). However, according to my understanding of the centrifugal force, ...
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In science fiction, which planet with lifeforms has the largest gravitational force?

I've just started reading Foundation and Gaal Dornick has landed on Trantor for the first time and notices that: The air seemed thicker here, the gravity a bit greater, than on his home planet of ...
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How does gravity work on the Icarus?

Sunshine doesn't strike me as the most scientifically inaccurate film, and how it deals with gravity has caught my attention. The Icarus (I & II) seems to have long cylindrical compartments, with ...
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Soft as a rock bed on the moon, seeking source & quote

I recall reading a book maybe 20 years ago; two people on the moon went to a low budget overnight accommodation. The beds are stone shelves. One says to the other something like in the moons low ...
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Changing gravity in Moon (2009 film) - simply a mistake or was there an explanation?

Last night I watched Moon and it struck me that the gravity seemed to change depending on Sam's location: On the Moon's surface, gravity seemed to be as expected, as evidenced by Sam's slow movement. ...
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What book - boy travels from home city and gets distended by gravity?

I read a very special book a few years back. We follow a boy who lives in a world where, if one moves far enough in a direction, that person gets distended and changed in size. The boy works on ...
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Identify a short story where two astronauts on an orbiting platform are having a dispute

I remember reading a short story in the 60/70's where there were two astronauts in spacesuits on an orbiting platform having some sort of dispute. One of them successfully threatens the other to by ...
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Was the idea of a tidal dislocation weapon ever suggested in SciFi? [closed]

In an intense and non uniform gravity field, the various parts of a moving body tend to follow different trajectories, and will unless the whole structure is tied strongly enough to prevent flying ...
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Boy born in space needing to somersault and spin to counteract earth's rotation

What is the title of the book I read in the 1960s or 1970s about a boy that somersaulted and spun throughout the day? As he grew it became worse. The boy claimed he had a need to do this to feel ...
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10answers
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Why is gravity pulling the crew down they're in freefall?

In Into Darkness, there's a scene where the Enterprise enters the atmosphere of a planet, During their descent, the crew members fall in all different directions through the ship and it seems to ...
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How does a Dyson Sphere's inhabitants deal without gravity?

It's well known that because the gravitational attaction at one point on the inside of a hollow shell is zero, because it is cancelled by the attraction from all the other points on the interior. ...
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Does the front door of the TARDIS always open up to the control room?

In all of the episodes of Doctor Who that I've seen the TARDIS' front door opens up to the control room. However, it would seem that given the TARDIS' capabilities it would be possible for the door to ...
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How did Captain Picard and Worf stay in their seats while upside down in Insurrection?

In Star Trek Insurrection we see Captain Picard and Worf spinning upside down repeatedly while flying in an atmosphere in a shuttle and trying to capture Data. After they even out, Worf gets up and ...
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Is the Melancholia “Dance of Death” possible? [closed]

In the movie Melancholia, one of the characters finds this diagram on the internet showing the planet approaching, passing, and then slingshotting around to hit earth. In the end, that seems to be ...
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Would John Carter remain strong on a reduced gravity world?

Written by Edgar Rice Burroughs in 1912 and long before space flight, it was stated John Carter would be stronger on Mars than he was on Earth. If he stayed on Mars, would he remain strong, or would ...
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1980s/1990s SF novel about space marines from a heavy gravity planet?

I'm trying to remember the title of a hard SF novel I read in the early 1990s. The story featured space marines from a heavy gravity planet. Because of the environment they grew up and trained in, ...
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What's the technical explanation for gravity to exist inside a spacecraft in science fiction? [closed]

Specifically, spacecraft that are not obviously using centrifugal force to simulate gravity the way that the space station from 2001 does.