9 votes

What sort of climate zones would be present if Earth was tilted like Uranus?

A paper on this topic just appeared: Multiple Climate States of Habitable Exoplanets: The Role of Obliquity and Irradiance. In case of 90° obliquity, summer and winter would appear together with day ...
Barlach's user avatar
  • 91
4 votes

What will be the temperature on Earth when Sun finishes its main sequence?

Answers will be different because they must be tied to a model of solar evolution, and all models are a bit different. So to answer your question we have to select a model. A pretty standard and ...
Camilo Rada's user avatar
  • 17.6k
4 votes
Accepted

What would the equilibrium temperature be at the poles in a world without seasonality?

If we consider that by "Assume daily cycle and convection and so on operate as usual" you meant that all heat transport from/to the pole remain as it is today. Then, we can do a back of the envelope ...
Camilo Rada's user avatar
  • 17.6k
3 votes
Accepted

What happens if it rains above the boiling point of water?

Pressure and temperature are not all the same when going up vertically. See average temperature and pressure profiles. The evaporation of any liquid has a pressure-dependent equilibrium point, see ...
AtmosphericPrisonEscape's user avatar
2 votes

Why would moving the prime meridian hasten the time when it would be necessary to drop a day from the calendar?

There is no basis in logic to have to subtract a day due to a change in the prime meridian. Both the Julian & Gregorian calendars require days to be added, not subtracted. It's why we have leap ...
Fred's user avatar
  • 24.7k
2 votes

Nibiru, or Planet X

There's nothing to be worried about. There's no magical Niburu or Planet X, if anything then Planet 9 might exist. There was a recent research paper that looked at the orbital elements of some trans-...
AtmosphericPrisonEscape's user avatar
2 votes

How big does a pointed piece of tungsten need to be to self-propel into the earths core by gravity alone?

It will never get past the mantle. The tungsten (or tungsten carbide) will chemically react with the rocks surrounding it to dissolve and form other minerals (silicates), or even worse: get diluted ...
Gimelist's user avatar
  • 23.1k
2 votes

What happens if it rains above the boiling point of water?

It will depend on how the temperature and humidity change as the raindrops approach the bottom of the column. If the air is hot and dry, the drops will evaporate. If it's hot and humid enough, they ...
jeffB's user avatar
  • 798
2 votes

How might 25% lower gravity affect precipitation on an Earth-like planet?

I read that air at lower density holds more water vapor. I suspect you may have misinterpreted what you read. Given two air masses at the same pressure and temperature but with different humidity ...
David Hammen's user avatar
  • 23.5k
1 vote
Accepted

Stop earth rotation around its axis

Slowing the planet would have major consequences. Stopping the planet would have major consequences (here are some: Effect on sea level if the Earth stopped rotating). Doing either of these things ...
Semidiurnal Simon's user avatar
1 vote

How big does a pointed piece of tungsten need to be to self-propel into the earths core by gravity alone?

Yes, tungsten carbide does have a hardness of 9, but neither it nor diamond, which has a hardness of 10, are immune to wear from friction. It's how rough diamonds get transformed into cut diamonds. ...
Fred's user avatar
  • 24.7k
1 vote
Accepted

Why would moving the prime meridian hasten the time when it would be necessary to drop a day from the calendar?

I don't know the book and the quality of fiction are rarely in the facts. However, it is always nice to think about the spinning of our planet and how our theories and methods relate to the actual ...
user2821's user avatar
  • 5,946
1 vote

Why would moving the prime meridian hasten the time when it would be necessary to drop a day from the calendar?

To give a fuller explanation, the current calendar is the Gregorian calendar, which was introduced in 1582 to address the inaccuracies of the older Julian calendar. The Julian calendar gains a day ...
kingledion's user avatar
  • 3,376
1 vote
Accepted

How would waves (in a fluid) behave without intermolecular attraction?

There are different factors that make water a media for waves. For transversal waves the viscosity and cohesion of molecules are essential. Even if the water is assumed not to evaporate. Try to ...
kamran's user avatar
  • 164

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