Juraj
  • Member for 5 years, 2 months
  • Last seen more than a week ago
Is it possible for people to live in the eye of a permanent hypercane?
20 votes

While the weather in the eye is calm and possible to live in, there are big sea waves from the storm. The coasts would be uninhabitable and fishing impossible. If there are major rivers, large ocean ...

View answer
Natural Metre Bar
8 votes

Capillary action When hollow tube is submerged to a fluid, the surface level inside tube is different from the outside, as if defying gravity. This difference is universal and can be used to set a ...

View answer
How can faith be maintained in a world of living gods?
8 votes

Once per year, the demigods will use chimneys to enter buildings and leave gifts.

View answer
Could there be something like aerobatic smoke trails in the vacuum of space?
Accepted answer
8 votes

Using fumed silica. It is stable in vacuum, after crystallizing it won't spread out and it requires little source material to create large volume agglomerates.

View answer
What EM band would be least noticed if I started globally broadcasting white noise on it?
6 votes

Ultra wideband. It's a modulation that broadcasts signal in short pulses but with very wide spectrum. It won't interfere with usual narrowband radio. It is in fact already supported in some phones but ...

View answer
The Earth is our Moon - A Reality check for a Binary Planet System
Accepted answer
6 votes

The distance is close to Roche limit 2.4*diameter, about 18000 kilometers between centers of planets. Below the limit the tidal forces would cause them to catastrophically exchange mass. Even distance ...

View answer
Rare Earth Elements in the outer solar system
6 votes

Research on Ceres indicates that cryovolcanism causes water ice to seep to the surface, where it sublimes and leaves salt deposits. We have not analyzed these deposits yet, but they are practically ...

View answer
How would two worlds first establish an exchange rate between their currencies
6 votes

As bitcoin history shows, currency exchanges will emerge very quickly as soon as the currency is considered to have some nonzero value, despite exchange rate fluctuations. The rates on all these ...

View answer
Electrosynthetic Autotrophs
5 votes

Not a biologist, but IMO plants are most often limited by nutrients, not energy, and that's why efficiency of photosynthesis isn't so crucial. Probably fastest growing plant is Azolla which can double ...

View answer
What city and town structures are important in a low fantasy medieval world?
5 votes

I miss infrastructure related to animal husbandry. Pastures usually took larger area than farms, as they are less labor-intensive - even to such extent that late medieval Europe got largely deforested ...

View answer
I want my aliens to arrive at the edges of the solar system. They would arrive in a week. What do I need to have?
4 votes

Neutrinos If their braking propulsion is showering inner solar system with narrow beam of highly energetic neutrinos from exotic nuclear reactions, they are detectable with existing neutrino detectors ...

View answer
If every star in the universe except the Sun were destroyed, would we die?
4 votes

Nothing would happen. Solar system is self-sufficient enough. It would be only little influenced if rest of universe somehow ceased to exist. That said, anything that would preserve our little bubble ...

View answer
Alternative Uses of Bottomless Heat Sinks
4 votes

Supercomputation. If that heat sink could be manufactured on a chip together with the transistors, it would enable Moore's law to continue unimpeded at least for decades - CPU speeds in hundreds of ...

View answer
Would the rotation of the starfield from a ring station be too disorienting?
4 votes

Despite the issues other answers mention, large glass windows on space stations are likely to be considered stylish and desirable "must have"s. It will inevitably cause problems especially when the ...

View answer
What would be their physical limitation if human could fly?
3 votes

Orientation: when earth isn't visible pilots can't reliably determine their height, speed and and bearing and must rely on instruments. Unaugmented humans would get lost in clouds easily, with risk ...

View answer
Practical reason for genetically engineering exotic skin colors in humans?
3 votes

Vividly colored alien microbes accidentally colonized the human's skin - the outer layer of dead cells on the skin. They are harmless, act as mild disinfectant, repulse annoying insects from Earth and ...

View answer
will there complication to the body especially the guts, if basically a single senzu bean make a person never need to eat for the rest of their life?
3 votes

Let's handwave the bean is magic so that it can produce all required nutrients "out of nothing" without being overly dense and without external supply. But there's nothing otherwise magical with it - ...

View answer
Methods and Feasibility of Antimatter Mining?
3 votes

Manipulate dust with electric field First, shield the asteroid from further interaction from interplanetary matter as explained by other answers. Then, make it electrically charged using positrons. ...

View answer
Moving mountains
3 votes

Imagine a "log" of extremely resistant material maybe 100km long and several kilometers thick, floating vertically just under the planetary surface so that it protrudes into planetary mantle and is ...

View answer
How would history be different if Communism was white supremacist?
3 votes

Communism, to say it simply, originates from Marx's economical value theory, that workers(proletariat) create the value and factory owners(bourgeoisie) unjustly appropriate it. Marx then proposed that ...

View answer
Is a carbon planet with seas of methanol on its surface scientifically possible?
3 votes

It depends on what molecules are most stable/lowest energy in given environment. I am not a chemist, so can't say for sure, but methanol probably isn't, see Wikipedia: It does not persist in either ...

View answer
How could a time paradox caused by a manufactured deity fail to produce a full retcon of history?
2 votes

Fractal timeline If you have seen a Mandelbrot fractal, consider that matematicians suspect that it is all only one piece with one boundary. This boundary is a line of infinite length and with ...

View answer
What would a scientific accurate exploding Krypton look like/be like for anyone standing on the planet?
2 votes

There is a theory that planets which don't have plate tectonics undergo periodical resurfacing - the heat from the plant's interior is slowly gathering under planet's mantle "lid" till it ...

View answer
How could primitive people destroy or severely damage a very large very modern building?
2 votes

Use biological weapons. Surreptitiously cause some nasty local fauna or flora outbreak in the building, in air ducts, or water, or waste treatment system. Or something like - there is a story about a ...

View answer
Pre industrial form of rapid mass transit over land
2 votes

If you are looking for transit alternatives other than water: unpowered air gliders are feasible with medieval technology, can be manufactured from wood/cloth/paper/ropes. It was not done then because ...

View answer
Interesting Atmosphere Chemicals
Accepted answer
2 votes

Some interesting inert gases Neon - to have pretty red-orange lightning Helium-3 - infinite energy if there's civilization that develops nuclear fusion. Heavy gases like fluorocarbons or sulfur ...

View answer
How impossible would a bioluminescent plant-based lifeform be?
2 votes

Plants would have difficulty to obtain the concentrated excess energy required for, say, 1 watt light output. More viable are fungi or animals that can get the energy by respiration (burning oxygen). ...

View answer
Detecting a Starship at the L2 Lagrange Point
2 votes

We do have a telescope observing the Earth from beyond the Moon, the Deep Space Climate Observatory. It orbits itself at Earth-Sun L1 point. When moon aligned right it already captured the moon's far ...

View answer
Justifying Affordable Bespoke Spaceships
2 votes

There will surely exist cheap mass-produced habitable modules including life support and suitable engines. These allow for bespoke constructions(or contraptions heh). However there's a radiation ...

View answer
Is it possible to create a realistic habitable planet/moon with actually alien landscape?
2 votes

Most possibly alien landscape is one without land. For example, Larry Niven's "The Integral Trees" takes place in a ring of habitable atmosphere around neutron star, with freely floating flora, fauna ...

View answer