L.Dutch - Reinstate Monica‭

For an in-situ born planet, it can happen, though it is hard to have the exact chain of events. Basically you need to have a series of gravitational slingshots with a larger body that put your pla...

posted 5y ago by L.Dutch - Reinstate Monica‭

A human crew of 6 has been sent on mission to Mars The lowest energy transfer to Mars is a Hohmann transfer orbit, which would involve an approximately 9 month travel time from Earth to Mars, a...

13 answers  ·  posted 5y ago by L.Dutch - Reinstate Monica‭  ·  last activity 5y ago by L.Dutch - Reinstate Monica‭

Stabilization by gyroscopic effect, plain and simple. A gyroscope (from Ancient Greek γῦρος gûros, "circle" and σκοπέω skopéō, "to look") is a device used for measuring or maintaining orientati...

posted 5y ago by L.Dutch - Reinstate Monica‭  ·  edited 4y ago by HDE 226868‭

For the sake of fixing some image in your mind, imagine you want to practice some sport in a rotating cylinder world: whether it be launching a javelin, strike a tee at the golf club or scoring a 3...

7 answers  ·  posted 5y ago by L.Dutch - Reinstate Monica‭  ·  last activity 5y ago by L.Dutch - Reinstate Monica‭

After traveling a long long time, your spaceship is finally entering into the gravitational sphere of influence of a Sun-like star. Your captain would now like to move from the Oort-like cloud dist...

2 answers  ·  posted 8y ago by L.Dutch - Reinstate Monica‭  ·  last activity 8y ago by L.Dutch - Reinstate Monica‭

When it comes to processing hearing and visual signals, our brain has different capabilities. While it seems to be able to execute a spectral analysis for sounds, so that when we hear the superpos...

3 answers  ·  posted 7y ago by L.Dutch - Reinstate Monica‭  ·  last activity 7y ago by L.Dutch - Reinstate Monica‭

Space bodies like planets, asteroids and comets are formed by the remaining materials of stars explosions. Therefore they are usually made up of several elements. There is the possibility that a p...

3 answers  ·  posted 7y ago by L.Dutch - Reinstate Monica‭  ·  last activity 7y ago by L.Dutch - Reinstate Monica‭

Halite, or rock salt, is a rock formed by salt deposited in past and then undergone geological processes. My question is: provided that enough (how to get that much sugar is not in scope of this q...

4 answers  ·  posted 7y ago by L.Dutch - Reinstate Monica‭  ·  last activity 7y ago by L.Dutch - Reinstate Monica‭

For us earthlings, the concept of "year" came from the observation that the Sun reaches a minimum and a maximum span in the rise-set path in the sky. On a planet experiencing extreme perihelion p...

1 answer  ·  posted 7y ago by L.Dutch - Reinstate Monica‭  ·  last activity 7y ago by L.Dutch - Reinstate Monica‭

This species of humanoids has a peculiar way of reproducing. Instead of the usual physical intercourse between a male and a female, followed by the sperm cell merging with the egg cell to generat...

5 answers  ·  posted 6y ago by L.Dutch - Reinstate Monica‭  ·  last activity 6y ago by L.Dutch - Reinstate Monica‭

Panotti so called from the Greek words πᾶν and οὖς for "all ears", were a mythical race of people, described as possessing large ears that covered their entire bodies. In the Natural Hi...

4 answers  ·  posted 6y ago by L.Dutch - Reinstate Monica‭  ·  last activity 6y ago by L.Dutch - Reinstate Monica‭

On an alternative Earth live the people of Tcelonia. One of their founding myths goes that, in the dawn of times, when they were under the menace of being attacked by an enemy population, for an e...

6 answers  ·  posted 6y ago by L.Dutch - Reinstate Monica‭  ·  last activity 6y ago by L.Dutch - Reinstate Monica‭

Permanent ice caps are formed when the rate at which water falling under the form of snow is higher than the rate at which the water is removed from a certain region either by evaporation or outflo...

1 answer  ·  posted 6y ago by L.Dutch - Reinstate Monica‭  ·  last activity 6y ago by L.Dutch - Reinstate Monica‭

An old saying goes that if you have an army, it will want to fight a war. That seems to be true also for our personal army, our immune system: there seems to be various pieces of evidence that man...

6 answers  ·  posted 5y ago by L.Dutch - Reinstate Monica‭  ·  last activity 5y ago by L.Dutch - Reinstate Monica‭

Space explorers have landed on an Earth like planet and, to their surprise, the place is luscious and covered in life, to the point of resembling some earthly tropical atoll. What they don't know ...

2 answers  ·  posted 4y ago by L.Dutch - Reinstate Monica‭  ·  last activity 4y ago by L.Dutch - Reinstate Monica‭