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41

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6

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7

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40

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37

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11

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11

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3

7

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120

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technology space exploration

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science-based warfare space

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80 Questions

Markets for the forfeit lives of convicted domestic abusers

Monster hurricanes to scrub islands clean

How to build and run a Skunk Works to weaponize magic flying ships [closed]

An iron rain to starve a planet

Winterizing a Municipal Water System

Why buy tech from the future?

Early warning detection system for ground troops, against orbital strikes

Armor for Giant Crabs to Defeat Explosive Bites from Predators

Permitting Customizable UI for a Spaceship's Systems

Viable Social Groups for species with three sexes

Selling the right to kill one's convicted abuser: how could an NGO make this profitable?

Maximizing Nuclear Detonation Effects against a Lunar Colony

How would one design an undetectable nuke to hit the Moon with?

Only Three Books: Kickstarting grain production after civilization collapses

Only Three Books: Restarting Medicine in 1801

Only Three Books: Restarting Physics after civilization collapses [closed]

Only Three Books: Restarting Chemistry after civilization collapses

Hammers or Swords? Most effective weapon for mech melee combat

What would Alien Talking Heads sound like?

The Transferable Skills of Sociopathy

A pack of velociraptors in a modern ecosystem, that would be pretty horrible, right?

A double-bright Moon and plant growth

Releasing a T-Rex into a modern ecosystem wouldn't be that bad, right?

How do I manage memetic infection while time traveling?

Lethal Low Pressure Fronts

Volcanoes in Orbit!

Exploration of a 50 mile high mountain

What if kings had to change diapers to go to war? [closed]

Adapting humans to a permanent 1.5g environment

Effectiveness of Nuclear Fire in Space