Activity for ΓΙΑΝΝΗΣ ΜΙΧΑΗΛΙΔΗΣ‭

Type	On...	Excerpt	Status	Date
Question	—	Would plants on a planet orbiting a star like ours, have any different color? So I'm currently designing an alien habitable planet that orbits a star similar to our Sun. Assuming that the composition of the planet's atmosphere, as well as its pressure, are similar to the ones on Earth, would plants on this planet have any other color than green? (more)	—	over 5 years ago
Question	—	Does crossing a wormhole happen instantaneously, or with the course of time? I have seen many science fiction movies that depict traveling in space through wormholes. The appearance though, and the time it takes to cross a wormhole, tends to vary: On one hand, we have the spherical, black hole-looking, wormholes that can be crossed instantaneously. On the other hand... (more)	—	over 5 years ago
Question	—	If the Earth was part of an ultimate solar system, what would the sky look like? I once show a picture depicticting the idea of an ultimate solar system: Image Copyright Sean Raymond In this solar system there are 8 planetary orbits, each containing 52 equal-mass, evenly-spaced planets all in the habitable zone. Now, imagine that in the far far future, humanity has the energy... (more)	—	almost 6 years ago
Question	—	What energy sources would a species use if they didn't have access to fossil fuels? I'm designing an alien race that hasn't developed electricity yet. Now, one thing about their species is that they haven't discovered fossil fuels on their planet to use, like coal, oil, etc. (The reason for this isn't clear at this moment but I think I can figure something out later.) So I was thi... (more)	—	almost 6 years ago