Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »

Activity for Sigma Oriā€­

Type On... Excerpt Status Date
Question In a spinning Dyson ring, would objects not touching the surface experience gravity?
I have a world inside a Dyson ring with a radius of 1 AU, complete with humans, animals, plants, clouds, and Earth-like atmosphere. The ring is spinning at a particular angular speed, giving the inhabitants on the surface the experience of Earth's gravity at sea level. How convincing is this pseudo-...
(more)
over 6 years ago
Question Could a dryad species be scientifically plausible?
On a fantasy-themed planet with Earth-like humans and plants, over a very long period of time, a dryad-like species has evolved. Dryads look mostly like regular humans, but they have a few qualities that differentiate them, like green hair, special reactions to sunlight (see Zotoh Zhaan from Farscape...
(more)
over 7 years ago
Question Could a civilization without access to computers have cryptography?
There's a person who has enough working knowledge of our current real-world methods of cryptography (e.g. knows how a few modern algorithms work and could implement one or two from scratch). That person becomes a member of an alien civilization where people are generally intelligent and educated (in...
(more)
about 8 years ago