b.Lorenz‭

Would Aristotelian natural philosophy, with planets and Sun orbiting the Earth, and forces needed to maintain motion Things having natural places and desiring to reach it horror vacui Four elemen...

3 answers  ·  posted 8y ago by b.Lorenz‭  ·  last activity 8y ago by b.Lorenz‭

Compact, rapidly rotating astronomical objects (like neutron stars) are often observed to emit streams of high energy particle radiation along their poles. Near supermassive black holes in galactic...

7 answers  ·  posted 8y ago by b.Lorenz‭  ·  last activity 8y ago by b.Lorenz‭

One of the big problems by manned space exploration and colonization, that it's insanely expensive. Building a colony on other celestial bodies - since it's impractical to bring back the acquired r...

4 answers  ·  posted 7y ago by b.Lorenz‭  ·  last activity 7y ago by b.Lorenz‭

In many sci-fi settings magnetic boots are used to help astronauts walk in microgravity. However, not all materials are ferromagnetic. Titanium, aluminum, the most form of carbon and silica can not...

7 answers  ·  posted 7y ago by b.Lorenz‭  ·  last activity 7y ago by b.Lorenz‭

The extreme pressure and temperature greatly reduces our ability to drill holes deeper than some kilometers into Earth's mantle. However, on a body smaller, colder and less dense, this would be a ...

1 answer  ·  posted 7y ago by b.Lorenz‭  ·  last activity 7y ago by b.Lorenz‭

I was told that building a tunnel into the centre of Enceladus is not possible, since it has subsurface ocean and molten, rocky core. But its brother, Mimas is a bit smaller, and shows no sign of ...

1 answer  ·  posted 7y ago by b.Lorenz‭  ·  last activity 7y ago by b.Lorenz‭

While the colonization of the Solar system is underway, a new sport emerges: Spatial Rowing. The rules are the following: Each spacecraft has one driver (the contestant) The loaded mass of each ...

6 answers  ·  posted 7y ago by b.Lorenz‭  ·  last activity 7y ago by b.Lorenz‭

What would happen if the entire inner surface of a Dyson sphere (not necessarily a solid shell, maybe a very dense swarm) would be coated into a highly reflective material? Let's say it can reflec...

5 answers  ·  posted 7y ago by b.Lorenz‭  ·  last activity 5y ago by b.Lorenz‭

There is an interstellar civilization somewhere between K2 and K3 and they have managed to build a dozen Nicoll-Dyson beams. These are megastructures which collect the entire power of a star, and p...

3 answers  ·  posted 7y ago by b.Lorenz‭  ·  last activity 7y ago by b.Lorenz‭

A colony ship is sent to Enceladus. It has a nuclear reactor to provide power to life support, electric engines etc... Upon arrival, the colonists also need a reactor to melt holes into the ice and...

2 answers  ·  posted 7y ago by b.Lorenz‭  ·  last activity 7y ago by b.Lorenz‭

Consider an interstellar spaceship. It is a rather classical design, somewhat similar to the ISS Venture Star from Avatar: http://james-camerons-avatar.wikia.com/wiki/Interstellar_Vehicle_Venture...

2 answers  ·  posted 7y ago by b.Lorenz‭  ·  last activity 5y ago by b.Lorenz‭