user avatar
user avatar
user avatar
pHred
  • Member for 6 years, 11 months
  • Last seen this week
  • Newcastle NSW, Australia
55 votes
Accepted

Can you forge a sword using just one piece of metal?

52 votes

What can plausibly explain many of my very long and low-tech bridges?

14 votes

Can a firearm stay functional in a hidden cache in a jungle in Vietnam or in Siberia for 700 years?

13 votes

Is there software to help me model tides?

12 votes

How can you build cities without cement?

8 votes
Accepted

Trading Upstream

6 votes

Need a suitable toxic chemical for a murder plot in my novel

6 votes

What would happen to a human dragged quickly from the surface to the mesopelagic zone?

5 votes

A Non-Iron Elvish Steel

5 votes

Designing a mega-fog

4 votes

If we were not limited by money, could we build science research submarines that are as large as military submarines?

4 votes

What would it take to build a ship capable of crossing the Pacific?

4 votes

How could a government be implemented in a virtual reality?

3 votes

Feasibility of mothballing passenger jets and cannibalizing some of them

3 votes

Logically consistent FTL without time travel

3 votes

Is planetary drill possible?

2 votes

How to detect gyroswords

2 votes
Accepted

Would a massive ocean yield larger storms?

2 votes

Is a diamond sword feasible?

2 votes

How does the atmosphere of this spaceship work if my brain doesn't?

2 votes

How far in the past could unprepared humans survive?

2 votes

Predators part 2: How can a boarding action from super aliens be repelled?

2 votes

How many refugees can I pack into a nuclear-powered version of the largest ship ever built?

2 votes

Could electric grids of the past have handled significant quantities of variable energy sources like wind and solar?

1 vote

Would mountains on the coast of a small island continent still have a rain shadow?

1 vote

A torpedo or bomb to kill everyone inside the ship or in general vicinity of the battle

1 vote

Earth analog planet with more than 3 convection cells per hemisphere

1 vote

How to negate gravitational influence of specific objects in space?

1 vote

Historical or mythological Monster Hunter organization

1 vote

What if a molecule turned into a black hole?