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Fulano
  • Member for 5 years, 4 months
  • Last seen more than a week ago
10 votes
8 answers
5k views

What could be the the consequences in this world if nuclear bombs didn't release radiation anymore?

9 votes
5 answers
3k views

What is the best ways of cleaning/bathing inside an astronaut suit?

7 votes
1 answer
1k views

How much energy I would require for a railgun to shot a bullet in the same speed of normal rifles?

6 votes
2 answers
275 views

Is it possible to extract energy from blood to power prosthesis?

6 votes
5 answers
1k views

How much gunpowder (or other materials) it would be required to accelerate 4mm Tungsten Sphere to 50 km/s? [closed]

6 votes
2 answers
116 views

What would be the most realistic approach for a Seismic Radar in a Land-ship?

5 votes
1 answer
323 views

It would be possible to enter and exit a black hole using a Warp Drive? [closed]

5 votes
1 answer
387 views

How much power/pressure would be required for air weapons to be as deadly as fire weapons?

5 votes
4 answers
1k views

Which space bodies have helium-3 besides the moon? [closed]

5 votes
2 answers
220 views

Hot air balloons lifting bridges in volcanic areas are possible?

4 votes
1 answer
414 views

What are the buoyancy capabilities of super-heated Helium?

4 votes
3 answers
275 views

Would it be viable to use air to deflect projectiles?

4 votes
1 answer
158 views

How much energy would flashtubes/rods need to receive to emit a pulsed laser strong enough to kill a human at 300 yards in less than a second?

4 votes
4 answers
380 views

Are 60000 RPM electric motors enough to a tennis launcher-like weapon to launch a bullet at same speeds as conventional rifles?

4 votes
3 answers
853 views

How much electric power would instantly kill a person (volts, amps, etc.)?

4 votes
1 answer
151 views

What should be the "golden ratio" for lifting on a land glider?

4 votes
1 answer
354 views

What should be the dimensions and pressure used in the 5 ton Hydraulic McKibben artificial muscles in my 2,55 meter mechs?

4 votes
3 answers
383 views

How much energy it would be required to propel a projectile with sound? Would it be lethal to its user?

4 votes
6 answers
502 views

For how much and for how long would a "Closed Cycle Nuclear Thermal Rocket Engine" generate thrust for a floating ship?

4 votes
2 answers
270 views

Anyone know some Artificial muscles?

4 votes
2 answers
151 views

Would a human-powered small mecha by using a mechanical lever system and Basic Hydraulics/Hydrostatic Transmission be physically possible?

4 votes
4 answers
295 views

Structural design of shoulders for rigid suits and/or armour, what would be the best way to make these?

3 votes
2 answers
708 views

How thin theoretically would a cut (with energy or matter) need to be to not be perceived by the human nerves/brain?

3 votes
5 answers
2k views

What would be the range of a shaped charge gun "projectile"?

3 votes
1 answer
443 views

How much lift would this multi-winged flying ship generate at 100 kph?

3 votes
9 answers
4k views

Would the use of sulfuric acid "piranha" weapons be considered chemical weapons, and thus, War Crimes?

3 votes
1 answer
337 views

How much energy I would need to make a Meson particle rifle?

3 votes
2 answers
156 views

Would a Oil platform-like battle-ship face too much water drag?

3 votes
2 answers
176 views

A car propelled by a turbine air jet has acceptable efficiency?

3 votes
1 answer
125 views

Can we "train" the body to be more resistant to internal bleeding/head trauma?