Activity for Lorry Laurence mcLarry
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Does time dilatation make travelling close to the speed of light redundant? I find time dilation confusing so I'm not sure if it is a relevant factor. Lets say you have a spaceship. There's no such thing as faster than light travel, but you do have inertial dampener technology that allows you to accelerate at very high G's without obliterating yourself. You want to get to ... (more) |
— | about 7 years ago |
| Question | — |
How can you build cities without cement? Modern cities are built from concrete with steel rebar because it is abundantly available and provides enough tensile strength. Concrete requires cement. Cement is made from limestone. Limestone is made from coral and skeletal remains. On lifeless planets there are no organic materials such as limest... (more) |
— | almost 8 years ago |
| Question | — |
What useful materials exist on a lifeless planet? Supposing you are trying to colonise planet that has no life what-so-ever but is otherwise an earth analogue. First thing that I realised is that there would be no oil. So they would need to make bioplastic (assuming they could introduce plants to the inorganic dusty soil). Then I thought that they... (more) |
— | almost 8 years ago |
| Question | — |
Effect of sustained high G enviroments on the human body? Tau Ceti e is possibly a good candidate for colonisation as it has a yellow dwarf sun like earth. But it's mass is estimated as >4.30 ± 2.1 of earth. (See Wiki) I remember from a documentary that the people building the foundations for the Manhattan bridge suffered delirium and bleeding from ears an... (more) |
— | almost 8 years ago |
| Question | — |
What distinction could there be between space torpedoes and space missiles? In the game "Stelaris" torpedoes and missiles are different categories of weapon. Presumably they wanted to include numerous kinds of weapons for the player to chose from. These weapons are all launched from spaceships in deep space. (They only ever travel through a vacuum; never through air or water... (more) |
— | almost 8 years ago |
| Question | — |
Why not build a space elevator starting from the moon? Anchor one end of the cable to the side of the moon that faces the earth. Drop the other end of the cable to earth so that it drags along the ground. The earth's gravity and friction contributes a degree of tension to the cable. As the earth does its daily rotation and the moon does its monthly orbit... (more) |
— | about 9 years ago |
| Question | — |
Would it ever be possible to access the vast supply of metal at the Earth's molten core? Continuing my line of thought from here: Could you cool the earth's mantle and then bore into it? You cannot bore into the mantle by cooling it as you go because the pressure would crush your little shell of cooled rock. (As explained by the accepted answer) Could you mine down to the maximum depth ... (more) |
— | over 9 years ago |
| Question | — |
How would society function with only one male per generation? Suppose an alternate reality where each human Society (country, clan, tribe, kingdom, or whatever) only give birth to one male per generation. That entire generation depend solely on that one male for reproductive purposes (and possibly, what ever sexual gratification their culture can conceive of.) ... (more) |
— | over 9 years ago |
| Question | — |
Could you create a travelling planet? Assuming fission thrusters as described here: Would a nuclear fission thruster with continuous fuel injection be possible?, and assuming drilling for the planet's molten mettle core as discussed here: Could you cool the earth's mantle and then bore into it?, and also assuming that people have built s... (more) |
— | over 9 years ago |
| Question | — |
Could you cool the earth's mantle and then bore into it? Assuming a fairly earth-like planet, perhaps, higher in minerals and resources. And a race of highly industrious, highly cooperative, very enginuitive people. Their science is comparable to our own, but they are total capable of using that science to engineer solutions to the challenges that will ens... (more) |
— | over 9 years ago |
| Question | — |
Would a nuclear fission thruster with continuous fuel injection be possible? Assume that Uranium is vastly available, as are the building materials. Can you build this device? The fuel tank stores uranium at a high temperature so that it remains liquid. The fuel injector/s spray a continuous stream of molten uranium into the nuclear fission chamber. The fission chamber susta... (more) |
— | over 9 years ago |