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For questions about the creation, use, and application of all types of technology.

8 votes
Accepted

How effective would a mini rail gun be?

Raw Power Short version: Too much. Your 1.6oz piece of wire with a muzzle velocity of 2500fps carries more than 13,000 Joules of energy with it as it leaves the weapon. For comparison, the ever-popu …
Kromey's user avatar
  • 8,545
14 votes

In a world where asymmetric cryptography is common place in day to day life, what could stop...

The WOT is Eve's leverage over Alice. Consider the full ramifications of what you're trying to avoid: Eve has stolen Alice's private key, and so Alice revokes it and generates a brand new one for her …
Kromey's user avatar
  • 8,545
12 votes

Could computing be developed in a pre-refining society?

Absolutely. Mechanical computing is indeed a thing. And while our own examples use metal components, they could really be made of just about any material the society could form into the necessary bit …
Kromey's user avatar
  • 8,545
26 votes
Accepted

How to disable off-world signals?

These pads, using whatever technology you want, would produce optical patterns to communicate data (think those QR codes you see everywhere). … This even assumes that we're dealing with highly advanced communications technology capable of far-faster-than-light communications. …
Kromey's user avatar
  • 8,545
12 votes
9 answers
865 views

Why might physical media remain in use in a highly networked society?

I'm writing a story set in our own future1, where networked devices are even more ubiquitous -- and more capable -- than smartphones today. Part of the story, however, hinges on the main character put …
Kromey's user avatar
  • 8,545
14 votes
9 answers
6k views

Automobiles after the apocalypse

So last year I started writing a post-apocalyptic story, and then realized I had no idea what the world was really like, and quite a few things just didn't seem to make sense. One of the biggest that …
Kromey's user avatar
  • 8,545
8 votes

What are the power options for intelligent humanoid robots?

The power requirements are going to be highly variable. Just think about today's electronics -- you could put a set of AA batteries into your TV remote and have it work for years, but an identical set …
Kromey's user avatar
  • 8,545
18 votes
Accepted

Internally consistent grav-plating

Artificial gravity is a "charge" In order to generate artificial gravity, you require a pair of charged surfaces, one pushing gravitons1 to the other (and/or one pulling them from the other). This al …
Kromey's user avatar
  • 8,545
17 votes
Accepted

Live-fire mech sports

Add in surprise inspections of equipment to look for any sort of jamming technology, and the risks and costs of getting caught make simply fielding a better mech the most cost-effective way of winning …
Kromey's user avatar
  • 8,545
22 votes
Accepted

Assistance to fight off a silicon-based lifeform

Stay calm, soldier. Our scientists have a few suggestions for you. Liquid ammonia boils at a temperature of −28F (−33C), so any creature with this as its blood will be significantly colder on thermal …
Kromey's user avatar
  • 8,545